Tous les outils

Record high-quality audio from your microphone or extract audio from MP4 and WebM video files offline. 100% secure, browser-based utility.

Trim audio clips and convert between MP3, WAV format client-side - Free online audio cutter

Read and write ID3 tags, album art, artist, and track details directly to MP3 file headers - Free online ID3 tag editor

View all ID3 tags - title, artist, album, artwork, BPM, and every embedded frame - from any MP3 file instantly in your browser - Free online MP3 metadata viewer

Generate beautiful vector (SVG) or image (PNG) waveforms from your audio files - Free online waveform generator

Normalize audio loudness to a target LUFS level client-side and download the result as WAV - supports Spotify, YouTube, EBU R128, and podcast standards. Free online audio normalizer.

Compress OGG Vorbis audio by adjusting quality level (q-1 to q10) - shows size vs quality trade-off. Upload any audio format and download compressed OGG instantly. Free online OGG compressor.

Compress audio assets to web-optimized sizes and download an MP3 + OGG pair for maximum browser compatibility - includes ready-to-use HTML5 audio snippet. Free online audio web compressor.

Convert stereo audio to mono and compress - immediately halves audio data size with minimal perceptual loss for voice. Four mix modes, sample rate control. Free online stereo to mono compressor.

Compress WAV audio by reducing bit depth (24→16→8 bit) and sample rate - shows exact size savings. Free online WAV compressor, no signup required.

Detect beats per minute by tapping along to music or uploading an audio file for automatic analysis - built-in metronome included. Free online BPM detector.

Play an audio file and visualize its real-time frequency spectrum with a live EQ display - bars, line, and filled modes - Free online audio equalizer visualizer

Remove background hiss, hum, and ambient noise from voice recordings using spectral subtraction - 100% browser-based, no uploads. Free online audio noise reducer.

Generate a valid iTunes/Apple Podcasts compatible RSS 2.0 feed XML from episode metadata - no server required. Free online podcast RSS feed generator.

Re-encode MP3 files at a lower bitrate (320/256/192/128/96/64 kbps) using LameJS - shows size and quality tradeoff. Accepts MP3, WAV, M4A, OGG. Free online MP3 compressor.

Compress podcast episodes to streaming-optimized mono MP3 - converts stereo to mono, applies 80 Hz high-pass filter, 4 bitrate presets (48-128 kbps). Reduces RSS feed hosting costs. Free online podcast audio compressor.

Reduce audio sample rate from 48 kHz → 44.1 kHz → 22 kHz → 11 kHz - shows file size reduction at each step. WAV (lossless) and MP3 output. OfflineAudioContext resampling. Free online audio sample rate reducer.

Compress M4A audio by reducing sample rate and bit depth - ideal for Apple Voice Memos. Shows exact size savings. Free online M4A compressor, no signup required.

Compress AAC audio files by reducing bitrate - shows quality comparison with original at the selected rate. Free online AAC compressor, no signup required.

Reduce any audio file's bitrate to hit a target file size - shows quality impact at every bitrate and recommends a safe floor. Free online audio bitrate reducer.

Automatically reduce any audio file to under 10 MB by iterating bitrate - shows the full iteration log and selects the highest quality that fits. Free online audio compressor.

Compress FLAC files using maximum lossless compression levels (0-8) - shows size reduction vs default encoding. Free online FLAC compressor, no signup required.

Compress voice memo recordings for speech intelligibility - applies high-pass filter, loudness normalisation, and mono conversion before compressing. Free online voice recording compressor.

Automatically reduce any audio file to under 1 MB by iterating sample rate - shows estimated audio duration preserved. Free online audio compressor to 1MB.

Automatically reduce any audio file to under 5 MB - common WhatsApp voice message and podcast preview size limit. Shows compression steps and duration preserved. Free online audio compressor to 5MB.

Reduce audio file size to under 25 MB for email attachment limits - selects format and bitrate automatically. Free online audio for email compressor, no signup required.

Compress audio to OPUS format - the most efficient lossy audio codec, typically 30% smaller than MP3 at the same quality. 8 bitrate presets from 6-128 kbps. Free online OPUS compressor.

Compare MP3, OGG, AAC, and OPUS compression for the same audio file - shows size and estimated quality score at each format. Free online audio compression comparison tool.

Compress multiple audio files at once with a shared bitrate setting - shows per-file savings and total reduction. Free online batch audio compressor, no signup required.

Trim video duration and mute audio tracks client-side - Free online video trimmer

Automatically compress video to under 10 MB - calculates required bitrate from duration and resolution. Free online video compressor.

Reduce video to email-safe size with presets for Gmail (25 MB), Outlook (20 MB), Apple Mail, and Yahoo Mail - calculates required bitrate automatically. Free online video email compressor.

Create SRT subtitle files from a form-based timeline interface - add cues, set timestamps, and download a valid .srt file instantly - Free online SRT generator

Convert local videos to animated GIFs offline in your browser - Free online video to GIF converter

Convert short video clips to compressed animated GIFs - applies palette optimization and frame rate reduction for the smallest file size. Three compression presets. Free online video to GIF compressor.

View resolution, duration, aspect ratio, frame rate, file size, and codec hints from any video file - thumbnail extraction included. Free online video metadata viewer.

Change the playback speed of a video file and export the result - Free online video speed changer.

Extract still frames from a video at specific timestamps and download them as PNG images - supports multiple timestamps, full resolution, and batch download - Free online video frame extractor

Compress video to under 100 MB while preserving maximum visual quality - automatically calculates optimal bitrate from video duration. Browser-based MediaRecorder API. Free online video compressor.

Automatically compress any video to under 25 MB - targets Gmail, Discord, and standard email attachment limits. Calculates required bitrate from video duration. Free online video compressor to 25MB.

Reduce video bitrate to a custom kbps target - shows resolution recommendations (1080p/720p/480p/360p/240p) and estimated output size for the chosen bitrate. Free online video bitrate reducer.

CRF-style compression with five quality presets - from Visually Lossless to Maximum Compression. Highest quality at minimum file size, no fixed bitrate target. Free online video quality compressor.

Compress MP4 and WebM videos in your browser - select resolution (240p-1080p), bitrate, and codec (VP9/H.264). Shows size reduction and downloads automatically. Free online video compressor.

Compress MP4 files using H.264 re-encoding at CRF 23-32 with AAC audio - the most widely compatible output. Choose CRF quality preset and resolution. Free online MP4 compressor.

Compress multiple video files at once with shared bitrate and resolution settings - shows per-file savings and total space reduction. Download all as ZIP. Free online batch video compressor.

Compress MOV files from iPhone or macOS screen recordings and convert to compressed MP4 or WebM - select resolution, bitrate, and output format. Free online MOV compressor, no signup required.

Compress video to Twitter/X specs - H.264, 720p max, 2:20 duration limit, 512 MB max. Four quality presets, auto duration enforcement, and spec validation. Free online Twitter video compressor.

Compress video to WhatsApp's optimal size (under 16 MB) and dimensions (720p) to avoid WhatsApp re-encoding. Free online WhatsApp video compressor, no signup required.

Compress and re-encode video to Instagram's optimal specs - prevents double-compression quality loss. 5 format presets: Feed Square, Portrait, Landscape, Reels, and Stories. Free online Instagram video compressor.

Compress video to under 25 MB for Gmail, Discord, and email attachment limits - automatic bitrate calculation. Free online compress video to 25MB tool, no signup required.

Compress WebM videos using VP9 codec - typically 30-50% smaller than H.264 at the same visual quality. Choose resolution (240p-1080p) and quality preset. Free online WebM compressor, no signup required.

Compress video with web-optimized presets (720p, 480p, 360p) for fast page loads and Core Web Vitals - outputs WebM. Free online compress video for web tool, no signup required.

Downscale video from 4K → 1080p → 720p → 480p → 360p and compress - shows estimated file size at every resolution step before processing. Free online video resolution reducer, no signup required.

Reduce video frame rate from 60fps → 30fps → 24fps → 15fps → 10fps - shows estimated file size at every fps step before processing. Reduces file size by up to 50% for non-motion content. Free online video frame rate reducer, no signup required.

Compress MP4 and MOV screen recordings using screen-content-optimised presets - especially effective for slide decks, tutorials, and coding sessions. Free online screen recording compressor, no signup required.

Strip the audio track from any video file - MP4, WebM, MOV, AVI, MKV. Useful when only the visual is needed and audio adds unnecessary size. Free online video audio track remover, no signup required.

Compress legacy AVI video files using H.264 or VP9 re-encoding - shows dramatic size reduction from uncompressed AVI. Free online AVI compressor, no signup required.

Compress MKV container videos in your browser - strip subtitle and audio tracks, select resolution (240p-1080p) and bitrate (250 kbps-8 Mbps), output as WebM or MP4. Free online MKV compressor, no signup required.

Compare H.264, H.265, VP9, and AV1 output sizes side by side for any video - H.264 and VP9 encoded natively, H.265 and AV1 estimated. Shows quality scores and downloadable outputs. Free online video codec comparison tool.

Shorten verbose JSON keys to single letters or abbreviated forms - shows size reduction and provides a downloadable key mapping file for restoration. Free online JSON key shortener.

Compare JSON byte size vs MessagePack encoding for any payload - shows exact savings, type-by-type breakdown, and MessagePack hex preview. Free online JSON vs MessagePack comparison.

Decompress GZIP+Base64, DEFLATE+Base64, and LZ-String compressed payloads back to readable text - supports all three LZ-String variants. Free online string decompressor.

Extract files from any ZIP archive client-side - browse contents, preview text files, download individual files or all at once. Free online ZIP extractor, no signup required.

Extract files from .tar.gz and .tgz archives client-side - browse contents, preview text files, download individual files or all at once. Free online TAR.GZ extractor, no signup required.

Enter original and compressed sizes to calculate compression ratio, space savings, percentage reduction, expansion factor, and bits per byte. Supports B/KB/MB/GB units with 6 preset examples. Free online compression ratio calculator, no signup required.

Upload any file and see its compressibility score - runs real GZIP, DEFLATE, and LZ77 compression with Shannon entropy analysis. Free online file compression ratio analyzer.

Calculate the Shannon entropy of any text or file - shows theoretical compression ceiling, incompressibility score (0-100), byte frequency distribution, and top symbols. Free online entropy analyzer, no signup required.

Calculate exactly how much size Base64 encoding adds - shows raw vs Base64 vs Base64+GZIP size. Supports text input, file upload, and Base64 decode modes. Free online Base64 size calculator.

Paste HTTP response headers and body to see uncompressed vs GZIP vs Brotli size, validate Content-Encoding, check Vary headers, and get compression recommendations. Free online HTTP response size analyzer, no signup required.

Generate the correct Content-Encoding, Vary, and Cache-Control headers for GZIP, Brotli, and Zstandard server responses - with Nginx, Apache, Express.js, and Cloudflare config snippets. Free online content-encoding header generator.

Paste an Accept-Encoding request header and decode which compression algorithms the client supports, q-values, and the optimal Content-Encoding to serve. Free online accept-encoding header analyzer, no signup required.

Upload any image to get a compression-guided recommendation for JPEG, WebP, AVIF, or PNG - shows estimated size savings, quality score, and browser support for each format. Free online image format picker, no signup required.

Upload original and compressed images to calculate SSIM score, PSNR, and MSE - quantifies quality loss from compression with per-channel R/G/B breakdown. Free online image SSIM quality scorer, no signup required.

Encode a binary delta between a base file and a target file - shows COPY vs INSERT instruction breakdown, delta size vs target size, and round-trip verification. Useful for understanding incremental update compression. Free online delta compression tool.

Visualize LZ77 sliding window compression step-by-step on any text input - see every (offset, length, next-char) token with interactive highlighting and plain-English explanations. Free online LZ77 compression visualizer, no signup required.

Upload a file or paste text to compare GZIP, Brotli, ZSTD (estimated), and DEFLATE compression sizes and timing side by side. Interactive SVG charts show the size vs speed tradeoff. Real GZIP/DEFLATE/Brotli measurements via browser CompressionStream API. All processing runs locally in your browser - free online compression benchmark tool, no signup required.

Verify that a ZIP or GZIP archive is not corrupted - checks CRC32 checksums for all file entries client-side. Shows stored vs computed CRC32 per entry with OK / CORRUPTED status. Free online archive integrity checker.

Generate a production-ready Nginx Brotli compression configuration - configure compression level (1-11), brotli_static mode, MIME types, GZIP fallback, and installation method with curl verification. Free online Nginx Brotli config generator, no signup required.

Generate a production-ready webpack.config.js snippet with GZIP and Brotli pre-compression using compression-webpack-plugin - configure levels, threshold, minRatio, and asset patterns with install commands and build verification. Free online webpack compression plugin config generator, no signup required.

Analyze a ZIP archive and get actionable optimization suggestions - detects uncompressed stored files, duplicate entries, already-compressed formats wasting space, and large compressible text files. Shows compression method breakdown, per-file ratio, and prioritized impact ratings. Free online archive size optimizer, no signup required.

Check multi-volume archives (ZIP split .z01/.z02/.zip, RAR .part1.rar/.part2.rar/.rar) for completeness - detects which parts are present, identifies missing parts by index, and shows whether the archive can be reconstructed. Free online multi-volume archive checker.

Estimate Brotli compression savings for any text payload and compare against GZIP and DEFLATE - shows exact byte savings, compression ratio, and bandwidth impact at scale. Free online Brotli compression estimator.

Estimate how small a set of files will compress to as ZIP - calculates Shannon entropy per file and predicts DEFLATE compression ratio. Free online ZIP size estimator, no signup required.

Paste any text and instantly see GZIP compressed size, compression ratio, and byte savings - useful for API payload planning and HTTP transfer optimization. Free online GZIP ratio checker.

Compare GZIP and Brotli compression savings for any text payload side by side - exact GZIP results via CompressionStream API and estimated Brotli results based on RFC 7932 benchmarks. Free online GZIP vs Brotli estimator.

Enter your service worker precache URL list to estimate total cache storage, GZIP and Brotli sizes per asset type, and get compression recommendations. Free online service worker cache size estimator, no signup required.

Convert between bytes, KB, MB, GB, TB, and binary units (KiB, MiB, GiB, TiB) with decimal and binary mode toggle. Supports bits, bytes, and all standard storage units. Free online file size converter, no signup required.

Select your file type and use case to get the best compression algorithm recommendation - covers GZIP, Brotli, ZIP, WOFF2, and format-specific codecs for 25+ file types. Free online compression recommender, no signup required.

Encode and decode text using Run-Length Encoding - shows compression ratio, longest run, and a verdict on whether RLE is effective for your input. Free online RLE encoder decoder, no signup required.

Model an API endpoint's response payload and estimate compressed wire size across GZIP and Brotli at various client loads - shows daily bandwidth savings with cache hit rate modeling. Free online REST API response size estimator.

Predict compressed output size from file type, content entropy, and chosen algorithm - GZIP, Brotli, DEFLATE, LZ4, Zstandard, XZ. Covers 24 file types with confidence ratings. No upload needed. Free online file size estimator after compression.

Enter file size, compression ratio, and monthly requests to calculate exact monthly and annual bandwidth savings - plus CDN cost reduction across AWS CloudFront, Google Cloud CDN, Azure CDN, Cloudflare, Fastly, and BunnyCDN. Free online bandwidth savings calculator, no signup required.

Estimate Zstandard compression savings vs GZIP and Brotli for any text payload - shows all 7 compression levels (1-22) with size, savings percentage, and a level tradeoff table. Free online ZSTD compression estimator.

Build a custom compression dictionary from sample data and compress a target string - shows dictionary vs GZIP vs dictionary+GZIP savings side by side. Free online dictionary compression simulator, no signup required.

Enter any text to build its Huffman tree, generate optimal prefix-free binary codes for each character, and see exact bit savings vs fixed 8-bit ASCII encoding - with interactive SVG tree and code table. Free online Huffman encoding visualizer, no signup required.

Visualize the GZIP and DEFLATE compression level vs size vs speed curve for levels 1-9 - enter file size and content type to see compressed sizes, speeds, and time-to-compress at each level. Helps choose optimal server config. Free online compression tradeoff visualizer, no upload needed.

Generate optimized Nginx GZIP compression configuration with recommended MIME types, compression level, proxy settings, and gzip_vary - for http, server, or location blocks. Free online Nginx GZIP config generator, no signup required.

Generate Next.js next.config.js or next.config.mjs with optimized GZIP and Brotli compression settings - supports Vercel, Node.js, Docker, and static export deployments with deployment-specific warnings. Free online Next.js compression config generator.

Generate Cloudflare-compatible compression settings - Brotli, Auto Minify, caching rules, Cache-Control headers, and a Worker script for custom compression headers. Covers all Cloudflare plans. Free online Cloudflare compression guide, no signup required.

Generate vite-plugin-compression configuration for pre-compressing Vite build assets to GZIP and Brotli - produces vite.config.ts with framework-specific imports and nginx serving config. Free online Vite compression config generator, no signup required.

Build Cache-Control headers for compressed assets - sets max-age, s-maxage, stale-while-revalidate, and Vary: Accept-Encoding correctly. Config snippets for Nginx, Apache, Cloudflare, CloudFront, Fastly, and Vercel. Free online CDN cache-control header builder, no signup required.

Generate Express.js compression middleware configuration using the compression npm package - configurable level, threshold, custom filter, and Vary header. CommonJS, ESM, and TypeScript output. Free online Express.js compression middleware generator.

Generate a Lambda@Edge Node.js function for CloudFront that adds Brotli and GZIP compression - includes IAM trust policy, IAM execution policy, and AWS CLI deployment steps. Free online Lambda@Edge compression script generator.

Generate CloudFront behavior configuration for Brotli and GZIP compression - cache policies, response headers policies, and correct Cache-Control headers. Console steps, Terraform, CloudFormation, CDK, and AWS CLI output. Free online CloudFront compression config guide, no signup required.

Generate Vercel configuration for serving compressed static assets with correct Cache-Control and Vary headers - vercel.json, next.config.js, or Edge Middleware output. Free online Vercel edge compression config generator.

Generate Apache mod_deflate GZIP compression configuration for .htaccess, httpd.conf, or VirtualHost - with recommended MIME types, browser exclusions, and Vary header. Free online Apache mod_deflate config generator, no signup required.

Generate Apache mod_brotli configuration with quality settings, MIME type filters, and GZIP fallback for httpd.conf, VirtualHost, Directory, or .htaccess. Free online Apache mod_brotli config generator, no signup required.

Step-by-step checklist to configure AWS S3 and CloudFront to serve pre-compressed GZIP and Brotli static assets - with AWS CLI commands, Terraform snippets, and verification commands. Free online S3 compression checklist, no signup required.

Paste a Dockerfile to analyze each RUN instruction estimated layer contribution, detect size-bloating patterns, and get an optimized Dockerfile with fixes applied. Free online Docker image layer size analyzer, no signup required.

Bundle multiple folders into a ZIP archive that preserves your complete directory hierarchy - uses webkitdirectory folder picker and DEFLATE level 9 compression via fflate. Free online multi-folder ZIP creator.

Bundle and compress multiple files into a .tar.gz archive entirely in the browser using fflate - GZIP level 9 compression, POSIX ustar format, instant download. Free online TAR.GZ creator.

Compress any single file to .gz format using the native browser CompressionStream API - zero server needed. Shows original size, compressed size, and compression ratio. Free online GZIP compressor.

Compress any binary file - executable, database, firmware, or document - to ZIP (fflate, levels 1-9) or GZIP (CompressionStream) in the browser. Shows compression ratio. Free online binary file compressor.

Open and browse the contents of any ZIP archive without extracting - see file names, sizes, compression ratios, and methods in a sortable, searchable table. Free online ZIP file inspector.

Merge multiple ZIP archives into a single ZIP in the browser - deduplicates files with identical paths (first-wins) and shows a full conflict report. Free online ZIP merger.

Convert a ZIP archive to TAR.GZ format entirely in your browser - extracts ZIP contents and re-packages them as a .tar.gz using fflate GZIP level 9. Free online ZIP to TAR.GZ converter.

Split a large ZIP archive into multiple smaller ZIP parts of a configurable max size - entirely in your browser using JSZip. Presets from 1 MB to 100 MB, custom KB/MB input, independent extractable parts. Free online ZIP splitter.

Compress data using raw DEFLATE algorithm and view output as binary download, hex string, or Base64 encoded string - entirely in your browser using fflate. Free online DEFLATE compressor.

Compress NDJSON/JSONL log files using GZIP - shows line count, valid/invalid JSON lines, and compression ratio. Optionally minifies each JSON line before compression. Free online NDJSON JSONL compressor, no signup required.

Compress HTTP Archive (HAR) files by removing response bodies, cookies, and headers - then GZIP compress for 80-95% size reduction. Shows per-entry analysis. Free online HAR file compressor, no signup required.

Scan ZIP archives for duplicate files by comparing SHA-256 hashes. Shows duplicate groups with file sizes and paths for each archive. Helps identify wasted space and clean up bloated archives. Free online duplicate file finder in archives.

Compress text using LZ77/LZ-String - ideal for localStorage, cookies, and URL state. Base64, UTF-16 (localStorage-optimised), and URI Component output. Decompression mode included. Free online LZ-String compressor.

Compress a JSON object or string before storing in localStorage - shows space saved, UTF-16 char count, and % of 5 MB browser limit used. Ready-to-use code snippet included. Free online localStorage compression helper.

Estimate IndexedDB storage usage for JSON payloads using the structured clone algorithm - shows how much LZ-String compression reduces quota usage. Four-way size comparison with code snippet. Free online IndexedDB payload size estimator.

Compress cookie value strings using LZ-String and instantly see whether the compressed value fits within the 4096-byte browser cookie limit. Real-time size bar, Set-Cookie header preview, Base64 and URI Component output. Free online cookie compressor.

Compress any text with GZIP and encode to Base64 - produces a URL-safe compressed string for query params, cookies, and localStorage. Free online text compressor.

Compress CSS by removing whitespace, comments, redundant semicolons, and applying shorthand optimizations - hex color normalisation, zero-value shortening, font-weight shorthand. Free online CSS compressor.

Maximum HTML compression - removes all optional whitespace, collapses boolean attributes, strips comments, removes optional closing tags, and inlines style/script whitespace. Free online aggressive HTML compressor.

Compress inline SVGs, base64 images, and JSON data blocks embedded in HTML - shows per-asset savings and replaces each asset in the output HTML. Free online inline asset compressor.

Advanced CSS compression - merges duplicate selectors, removes vendor prefix duplicates, collapses shorthand properties, and strips all whitespace and comments. Free online advanced CSS compressor.

Strip whitespace, comments, and CDATA sections from XML - configurable options, shows byte savings and compression ratio. Free online XML compressor.

Remove blank lines, trailing whitespace, and unnecessary quoting from CSV - configurable options, shows byte savings and row count. Free online CSV compressor.

Strip comments and whitespace from Rust source files - preserves raw string literals (r"...", r#"..."#) and doc comments (///, //!). Free online Rust compressor.

Remove whitespace and comments from GraphQL schema and query files - single-line collapse mode for persisted queries, shows wire-size savings. Free online GraphQL compressor.

Minify GraphQL query strings and estimate wire size with and without GZIP - four-way size comparison (plain/GZIP × original/minified), single-line APQ mode. Free online GraphQL response compressor.

Strip TypeScript type annotations, interfaces, type aliases, and generics to produce clean JavaScript - shows compiled JS size vs original TS size. Free online TypeScript compressor.

Remove all whitespace from JSON and show exact byte savings - also shows GZIP wire size for true API transfer savings. Validates JSON as a side effect. Free online JSON compressor.

Compress Lottie animation JSON files by removing hidden layers, unused assets, empty properties, and whitespace - shows per-optimization KB savings. Compatible with lottie-web, lottie-react, lottie-react-native. Free online Lottie JSON compressor.

Minify JavaScript and generate a Source Map v3 file - download both the compressed .min.js and its .map file as a ZIP. Remove comments, collapse whitespace, remove console.log. Free online JS compressor with source map.

Remove comments and blank lines from YAML files - ideal for Kubernetes manifests, Helm charts, and CI/CD configs. Shows exact byte savings and line count reduction. Free online YAML compressor.

Strip blank lines, trailing spaces, HTML comments, and optional syntax from Markdown files - shows byte savings and line count reduction. Free online Markdown compressor.

Remove comments and blank lines from Go source files - preserves raw string literals, interpreted strings, and rune literals. Shows byte savings and line count reduction. Free online Go compressor.

Remove comments and blank lines from Terraform HCL files - preserves heredoc strings and template expressions. Shows byte savings and line count reduction. Free online Terraform HCL compressor.

Strip comments and whitespace from Apache .htaccess and httpd.conf files - preserves RewriteRule patterns. Shows byte savings and line count reduction. Free online Apache config compressor.

Remove comments and blank lines from .htaccess files - preserves RewriteRule patterns, shows byte savings, and includes directive analysis (RewriteRules, security headers, cache directives). Free online .htaccess compressor.

Convert YAML to minified JSON - typically 20-40% smaller wire size for configuration delivery APIs. Uses js-yaml for accurate parsing. Multi-document YAML support. Free online YAML to compact JSON compressor.

Remove comments and whitespace from PHP scripts - preserves heredoc/nowdoc strings, shows size reduction and compression ratio. Free online PHP compressor.

Strip comments and whitespace from C and C++ source files - preserves string literals, character literals, C++11 raw strings, and preprocessor directives. Shows byte savings and line count reduction. Free online C/C++ compressor.

Compress TSV files by removing blank lines and normalizing whitespace - shows exact byte savings, row count reduction, and validates column consistency. Free online TSV compressor.

Remove comments and excess whitespace from Swift source files - preserves raw strings, multi-line strings, and nested block comments. 6 configurable options. Free online Swift compressor.

Strip comments and blank lines from Kotlin source files - removes single-line, multi-line, and KDoc comments while preserving string literals. Shows size savings and line count reduction. Free online Kotlin compressor.

Strip comments and excess whitespace from R scripts - preserves string literals, removes # comments, blank lines, and trailing whitespace. Shows size reduction and line count savings. Free online R script compressor.

Consolidate RUN layers, remove comments, and compress Dockerfiles - reduces Docker image layer count and shows estimated layer size impact. Free online Dockerfile compressor.

Remove comments and blank lines from TOML config files - preserves all string literals and multi-line strings. Useful for embedded device configuration and CI/CD pipelines. Free online TOML compressor.

Remove comments and excess whitespace from Nginx config files - preserves string literals, shows size savings for config management repos. Free online Nginx config compressor.

Strip comments, blank lines, and trailing whitespace from robots.txt files - shows exact byte savings, directive count, and User-agent group count. Free online robots.txt compressor.

Paste code in any language and auto-detect syntax to apply the correct comment/whitespace stripping - supports 28 languages including JS, Python, Go, Rust, Swift, SQL, YAML, TOML, and more. Free online multi-language code compressor.

Compress WebSocket message payloads using permessage-deflate (RFC 7692) simulation - shows exact byte savings and bandwidth impact at scale. Supports DEFLATE, GZIP, and zlib. Free online WebSocket compressor.

Upload a CSS bundle and compress it - shows minified size, exact GZIP size, and Brotli size with ready-to-use nginx and Apache server configuration snippets. Free online CSS bundle compressor.

Paste any JSON API response and get actionable suggestions - remove nulls, strip empty arrays/objects, shorten verbose keys. Shows exact byte savings per optimization and GZIP wire size. Free online API payload size optimizer, no signup required.

Compress Server-Sent Events data fields using LZ-String Base64 encoding - reduces streaming bandwidth for JSON-heavy event payloads. Shows per-event byte savings. Free online SSE payload compressor, no signup required.

Compress GeoJSON files by reducing coordinate decimal precision and removing null properties - shows size vs accuracy tradeoff. Supports all geometry types. Free online GeoJSON compressor.

Paste a webpack stats JSON and visualize module sizes - highlights which dependencies contribute most to bundle size with optimization recommendations. Free online webpack bundle size visualizer.

Compress TopoJSON files by reducing coordinate decimal precision - shows file size at 6 precision levels (1-6 decimal places) with null property removal. Free online TopoJSON compressor.

Input HTML, CSS, and JS content and estimate total uncompressed and GZIP-compressed page transfer size - with per-asset breakdown and performance budget check. Free online web page size estimator.

Upload a favicon set and analyze total size - recommends removing redundant sizes and switching to SVG favicon. Identifies obsolete ICO and PNG sizes. Free online favicon bundle analyzer.

Extract critical above-the-fold CSS from HTML and compress it for inline embedding - eliminates render-blocking CSS and improves LCP scores. Free online critical CSS extractor, no signup required.

Upload a CSS sprite sheet PNG and recompress it using color palette quantization - shows KB savings for legacy sprite setups. Free online image sprite compressor, no signup required.

Compress HTML email code by removing whitespace, comments, and redundant inline styles - stays under Gmail 102 KB limit. Live size indicator. Free online email HTML compressor, no signup required.

Compress SVG files containing SMIL animations - strips redundant animation keyframes, removes editor metadata (Inkscape/Illustrator/Sketch), and optimizes path data. Free online SVG animation compressor, no signup required.

Upload a WebAssembly .wasm file and analyze its section sizes - shows which sections (code, data, debug) contribute most to file size with optimization recommendations. Free online WASM binary analyzer, no signup required.

Compress JavaScript and CSS source map (.map) files with GZIP and Brotli - shows size savings, parses source map metadata, and generates nginx, Apache, and CDN server configuration. Free online source map compressor, no signup required.

Compress RSS and Atom XML feeds by removing whitespace and comments - reduces feed size for CDN caching cost and faster subscriber polling. Supports RSS 2.0 and Atom. Free online RSS feed compressor, no signup required.

Compress server log files (NGINX, Apache, CloudFront, IIS) to GZIP in the browser - log files achieve 85-95% compression. Useful for log archiving, sharing, and analysis prep. Free online log file compressor, no signup required.

Compress OpenAPI 3.x and Swagger 2.0 JSON specs by removing descriptions, examples, and x- extensions - useful for SDK generation pipelines and API gateway imports. Free online OpenAPI compressor, no signup required.

Re-compress Minecraft world region files (.mca) at maximum ZLIB level 9 - reduces world size for sharing and backup. Fully compatible with Anvil format (Minecraft 1.2.1+). Free online Minecraft map compressor, no signup required.

Strip debug sections, name tables, and build metadata from WebAssembly binaries - reduces deployable WASM size without affecting runtime functionality. Free online WASM size optimizer, no signup required.

Compress AMP HTML pages by removing non-AMP compliant comments and excess whitespace - minifies style amp-custom while preserving AMP boilerplate. Includes AMP validation checks. Free online AMP HTML compressor.

Compress GLTF/GLB 3D model files by removing metadata, minifying JSON, and stripping unused extensions - with full model analysis showing meshes, materials, and extensions. Free online GLTF/GLB compressor.

Compress individual assets extracted from an APK (icons, images, XML layouts, JSON files) and show size savings per asset. Free online APK asset compressor, no signup required.

Compress and resize images to @1x, @2x, and @3x React Native asset densities and download as ZIP. Free online React Native asset compressor, no signup required.

Compress and package images into Flutter asset density variants (1x, 2x, 3x) with the correct directory structure and pubspec.yaml snippet output. Free online Flutter asset compressor, no signup required.

Calculate PWA precache size from a URL list and show which assets should be excluded to meet your cache budget. Free online PWA cache budget calculator, no signup required.

Compress all web assets (HTML, CSS, JS, JSON-LD, SVGs, base64 images) as a bundle optimized for 3G mobile network delivery - shows per-asset savings and estimated load time improvement. Free online mobile web performance compressor.

Compress images to fit iOS app upload limits - App Store (4 MB), iMessage (5 MB), Mail (20 MB), or custom 1-2 MB limits. HEIC-aware with fallback JPEG guidance. Free online compress image for iOS upload tool, no signup required.

Convert TTF and OTF fonts to WOFF format for legacy browser compatibility - lossless repackaging, batch conversion with ZIP download. Free online TTF to WOFF converter, no signup required.

Convert OTF fonts to WOFF2 format for web delivery - Brotli compression reduces font size by 30-50% with full OpenType feature support. Free online otf to woff2 converter, no signup required.

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Compress icon fonts (Font Awesome, Material Icons, Bootstrap Icons) to only the icons you actually use - rebuilds the cmap table to remove unused glyph mappings. Free online icon font compressor, no signup required.

Reduce a variable font to a static instance - freeze axis values (weight, width, slant) and strip variable tables (fvar, gvar, HVAR) for a smaller static font. Free online variable font instancer, no signup required.

Enter a Google Font name and character set - downloads a locally-hostable WOFF2 subset for GDPR-safe self-hosting. Generates @font-face CSS snippet instantly. Free online Google Fonts subset downloader, no signup required.

Upload a TTF or OTF font and compare file sizes across TTF, WOFF, WOFF2, and subsetted WOFF2 side by side - with a download button for each format. Free online font compression comparison tool, no signup required.

Strip TrueType hinting instructions (cvt, fpgm, prep, hdmx, LTSH, VDMX, gasp) from TTF and OTF fonts - reduces file size by 2-15% with no visual impact on modern high-DPI screens. Free online font hinting remover, no signup required.

Upload any font file (TTF, OTF, WOFF, WOFF2) and see file size, glyph count, table breakdown, OpenType feature list, and compression opportunity. Free online font file size analyzer.

Generate cryptographically secure RSA and ECDSA public/private key pairs using the Web Crypto API - Free online key generator

Generate high-entropy passwords with browser cryptographic randomness and policy controls - Free secure password generator

Generate batches of up to 10,000 cryptographically secure UUID v4 (random) or UUID v7 (time-ordered) identifiers in your browser - Free online UUID generator

Encrypt and decrypt files locally using AES-256-GCM with PBKDF2 passphrase-based key derivation - Free online AES file encryptor

Construct a JWT token from header and payload JSON with a signing secret - supports HS256, RS256, ES256, and more. Free online JWT builder.

Decode JWT claims and verify HS/RS/ES signatures in-browser with shared-secret and public-key workflows - Free online JWT debugger

Generate RFC6238 TOTP codes from Base32 secrets or otpauth URIs with algorithm and period controls - Free online TOTP generator

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Upload multiple files and compute SHA-1, SHA-256, SHA-384, and SHA-512 checksums for all of them at once with real-time progress tracking and CSV/JSON export.

Upload a file and its checksum file (.sha256, .md5, .sfv) to verify integrity. Parses standard hash file formats, computes matching hashes, and reports pass/fail for each entry. Free online checksum file verifier.

Decode PEM certificates to inspect issuer, subject, validity, SAN entries, and SHA-256 fingerprint locally - Free certificate inspector

Decode and validate PEM-encoded PKCS#10 Certificate Signing Requests - extract subject, public key algorithm and key size, Subject Alternative Names (SANs), challenge password, and verify the self-signature using Web Crypto. 100% client-side. Free online CSR decoder.

Generate custom QR codes from text or URLs and decode QR images locally in your browser with private client-side processing - Free online QR tool

Generate Code 128, EAN-13, and QR barcodes and download as SVG or PNG - free online barcode generator with custom colors and sizes

Generate HMAC-SHA-256, SHA-384, SHA-512, and SHA-1 signatures for API authentication, webhook verification, and JWT tokens - Free online HMAC generator

Convert binary files to Base64 or Hex strings and decode text back into downloadable files locally in your browser - Free online Base64/Hex file converter

Identify the algorithm used in a hash string - bcrypt, Argon2, MD5, SHA-256, NTLM, PBKDF2, and 20+ more with confidence scoring - Free online hash identifier

Encode and decode text using the ROT47 substitution cipher - shifts all 94 printable ASCII characters (! through ~) by 47 positions. Self-inverse, instant, browser-only. Free online ROT47 encoder decoder.

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Convert large Excel sheets (.xlsx, .xls, .ods) containing 50,000+ rows instantly to JSON or CSV format client-side.

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Convert XML files to print-ready PDF documents - Free online XML to PDF converter

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Convert JSON to TOON format to reduce LLM token usage by 30-60% - Free online JSON to TOON converter

Deep-merge two JSON objects with configurable strategies - overwrite, preserve, concat arrays, union arrays, or error on conflict - Free online JSON merge tool

Deep-merge two YAML files with key conflict resolution - overwrite, preserve, concat sequences, union sequences, or error on conflict - Free online YAML merge tool

Convert YAML to TOON format to reduce LLM token usage by 30-60% - Free online YAML to TOON converter

Normalize YAML into deterministic canonical output with consistent indentation, key spacing, and sequence formatting - Free online YAML to canonical normalizer

Detect CSV separators (semicolon, tab, pipe, comma) and normalize to consistent comma-separated output - Free online CSV delimiter detector and normalizer

Detect and repair CSV encoding artifacts including BOM markers, mojibake fragments, replacement characters, and mixed line endings - Free online CSV encoding detector

Repair common mojibake artifacts, normalize Unicode text, remove invisible control characters, and clean corrupted text safely - Free online Unicode and encoding repair tool

Detect and remove UTF byte-order-mark artifacts from text, CSV, JSON, YAML, and script files to avoid parser errors - Free online BOM detector and remover

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Analyze JSON payloads for SQL injection risk patterns and generate security guidance before query execution - Free online JSON to SQL safety checker

Validate LLM-generated JSON for parse errors, risky content patterns, and guardrail concerns before production use - Free online LLM output JSON guardrail validator

Convert CSV to TOON format to reduce LLM token usage by 40-60% - Free online CSV to TOON converter

Convert Lua table syntax to valid JSON format instantly - Free online Lua table to JSON converter

Convert Postman collection or request JSON into ready-to-run cURL commands instantly - Free online Postman to cURL converter

Generate realistic request and response payload examples from OpenAPI and Swagger schemas - Free online OpenAPI example payload generator

Merge two CSV files on a key column using inner, left, right, or full outer joins, or extract specific columns by name or index - Free online CSV joiner

Convert XML documents to JSON or JSON objects back to XML instantly in your browser. Supports attributes, nested elements, typed values, and configurable output - Free online XML JSON converter

Convert XML to JSON and see three-way size comparison: XML size, JSON size, and GZIP JSON size - shows which format achieves the smallest wire-transfer size. Free online XML to compressed JSON tool.

Convert nested JSON arrays to flat CSV tables and convert CSV back to structured JSON with delimiter, type inference, and nested-key controls - Free online JSON CSV converter

Generate a complete JSON Schema Draft-07 or Draft 2020-12 from any JSON payload instantly in your browser. Infers types, required fields, string formats, and nested structures - Free online JSON Schema generator

Convert any JSON object to a TypeScript interface or type alias with nested object support, optional fields, and custom root name - Free online JSON to TypeScript converter

Convert any JSON object to a Python dataclass or Pydantic model with nested class support, Optional fields, and camelCase to snake_case conversion - Free online JSON to Python converter

Convert any JSON object to a Go struct with proper type inference, json struct tags, nested struct support, and pointer type options - Free online JSON to Go converter

Map GraphQL queries and mutations to equivalent REST endpoints with HTTP methods, paths, and descriptions for migration planning - Free online GraphQL REST mapper

Compile LESS stylesheets to plain CSS in your browser with support for variables, nesting, mixins, arithmetic, and color functions - no Node.js required - Free online LESS compiler

Convert plain CSS declarations to equivalent Tailwind CSS utility classes with 200+ property mappings and unmatched declaration detection - Free online CSS to Tailwind converter

Compile SCSS/Sass stylesheets to plain CSS in your browser with support for variables, nesting, mixins, @extend, arithmetic, and color functions - no Node.js required - Free online SCSS compiler

Convert any JSON object into a Zod schema for runtime TypeScript validation with smart format detection for email, URL, UUID, and datetime strings - Free online JSON to Zod converter

Expand Tailwind CSS utility class names into equivalent plain CSS declarations - supports responsive prefixes, pseudo-class variants, and 500+ utility classes - Free online Tailwind to CSS converter

Extract all CSS custom property (--variable) declarations from any stylesheet and export as CSS, JSON, TypeScript, SCSS map, or Markdown table - Free online CSS variable extractor

Convert React JSX syntax to standard HTML - transforms className to class, htmlFor to for, style objects to inline CSS, and removes event handlers - Free online JSX to HTML converter

Convert standard Markdown to Slack mrkdwn or Microsoft Teams message formatting - handles bold, italic, links, lists, code blocks, and headers - Free online Markdown converter

Create ZIP archives with maximum deflate compression - compare fast, normal, and maximum compression modes side-by-side and see exact size savings. Free online ZIP compressor.

Re-compress an existing ZIP archive at maximum deflate compression (level 9) - ideal for ZIPs created with no compression. See before/after size comparison. Free online ZIP optimizer.

Add AES-256-GCM password protection to files and download as a ZIP - PBKDF2 key derivation, unique per-file salt and IV, entirely browser-based. Free online ZIP encryption tool.

Compare ZIP, TAR.GZ, and ZLIB compression for the same files side-by-side - shows which format achieves the smallest size with visual bars and exact byte savings. Free online archive comparison tool.

Upload any archive (ZIP, TAR, TAR.GZ, GZip) and list its contents without extracting - shows file names, sizes, compression ratios, and modification dates. Free online archive content lister.

Minify Lua code by removing comments, whitespace, and blank lines - Free online Lua minifier

Minify JavaScript source files by removing whitespace, comments, and blank lines - Free online JavaScript minifier

Compress HTML by removing comments, whitespace, optional closing tags, and redundant attributes - shows exact byte savings. Free online HTML compressor.

Strip comments, docstrings, blank lines, and trailing whitespace from Python scripts while preserving indentation - ideal for embedded and edge deployments. Free online Python compressor.

Remove comments, Javadoc, blank lines, and trailing whitespace from Java source files - useful for reducing code shared via API or config. Free online Java compressor.

Remove comments and excess whitespace from bash/sh/zsh scripts - preserves shebang, heredocs, and string literals. Free online shell script compressor.

Strip comments and blank lines from .proto schema files - useful for schema registry storage and gRPC distribution. Free online Protobuf compressor.

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Compress JavaScript by removing comments, collapsing whitespace, and eliminating dead code - shows exact size savings. Free online JavaScript compressor, no signup required.

Minify JSON and show both minified size and GZIP wire size - shows true wire-transfer savings for API payload planning. Free online JSON compressor with GZIP size.

Remove whitespace, comments, and redundant tokens from SQL queries - shows size savings and keeps the query executable. Free online SQL compressor, no signup required.

Remove comments and blank lines from Ruby scripts - shows size savings and preserves heredoc and string content. Free online Ruby compressor, no signup required.

Minify Lua scripts by removing comments, whitespace, and blank lines - shows size savings and preserves strings. Free online Lua compressor, no signup required.

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Format and beautify Lua code with proper indentation, spacing, and line breaks - Free online Lua beautifier

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Format and indent minified or messy JavaScript with proper indentation, consistent spacing, and clean line breaks - supports ES6+, arrow functions, template literals, and regex - Free online JavaScript beautifier

Format and indent minified or messy HTML into readable, structured output with proper indentation and clean line breaks - Free online HTML beautifier

Upload an image and detect signs of manipulation using Error Level Analysis (ELA), clone detection, metadata/EXIF extraction, and JPEG compression artifact analysis - free online image forensics analyzer.

Automatically organize images into date-based folders using EXIF dates or file modification dates. Groups by year, month, day, or custom format and outputs a folder structure preview - free online image date organizer, no signup required.

Browse over 100 file signatures (magic bytes) for all common file formats. Search by extension, hex signature, or ASCII text. Shows file format details, MIME types, and byte offsets - free online file signature database, no signup required.

Calculate Shannon entropy of any file in bits per byte with byte frequency distribution, text/packed/binary/encrypted classification, and visual histogram - free online entropy calculator, no signup required.

Analyze the internal structure of any PDF - page sizes, fonts, images, annotations, form fields, metadata, and cross-reference table integrity - free online PDF structure analyzer, no signup required.

Upload Office documents (DOCX, XLSX, PPTX) and strip all personal metadata - author name, last modified by, company, revision history, and comment author info for privacy - free online document metadata remover, no signup required.

Parse binary file structures based on a template - define fields (type, offset, length) and instantly see decoded values. Supports integers, floats, strings, and hex. Free online binary structure parser, no signup required.

Upload any file and detect corruption - missing magic bytes, truncated data, zero-filled regions, header damage, and structural defects. Get a damage score (0-100) with severity ratings and recovery suggestions. Free online corrupted file analyzer, no signup required.

Upload two files and compare their MD5, SHA-1, SHA-256, SHA-384, or SHA-512 hash values to instantly verify if they are identical or different. Free online file hash comparison tool, no signup required.

Paste or type text to instantly find and highlight all non-ASCII characters - identifies each character by Unicode code point (U+XXXX), character name, category, and position - free online non-ASCII character finder, no signup required.

Analyze RAR, 7z, and ZIP archives to detect solid compression, examine header structures, understand compression modes, and see how block structure affects extraction performance - free online solid archive analyzer, no signup required.

View and sort CSV files in an interactive table without uploading to a server - search, filter, sort columns, and see column statistics instantly

Upload or paste CSV data and generate bar, line, pie, or scatter charts client-side - customize colors, title, and labels, then download as PNG - Free online chart builder

Paste a CSV or JSON column and detect whether values are strings, integers, floats, dates, booleans, emails, URLs, UUIDs, and more - generates SQL and TypeScript types instantly

Check meta description length, title tags, Open Graph, and 15+ SEO signals instantly. Paste your HTML and get a scored audit with fix recommendations - Free online meta description checker

Analyze keyword overlap risk, repeated topic clusters, and term concentration signals to identify potential keyword cannibalization issues - Free online keyword cannibalization checker

Analyze JavaScript bundle reports to detect oversized chunks, heavy initial payloads, source-map exposure, and optimization opportunities with actionable guidance - Free online JavaScript bundle bloat analyzer

Find the likely Largest Contentful Paint resource from Lighthouse and performance logs with confidence scoring and targeted optimization guidance - Free online LCP resource finder

Diagnose Time To First Byte bottlenecks from Lighthouse, PageSpeed, and server diagnostics with actionable backend, cache, CDN, and network fixes - Free online TTFB analyzer

Detect CSS, JavaScript, and font assets that block rendering with prioritized fix guidance for critical request chains and first paint improvements - Free online render blocking resource detector

Analyze image diagnostics for oversized assets, format opportunities, LCP image pressure, and layout stability risks with actionable optimization guidance - Free online image optimization checker

Analyze web font loading diagnostics for render-blocking chains, FOIT/FOUT risks, heavy font payloads, and preload/font-display/caching gaps with actionable fixes - Free online web font loading analyzer

Analyze response caching headers for policy conflicts, low hit-rate signals, weak revalidation strategy, and CDN/browser cache inefficiencies with actionable fixes - Free online caching header analyzer

Analyze HTTP response headers for missing or misconfigured security headers. Check CSP, HSTS, XSS, Frame options, Referrer, and Server info leakage with configuration snippets - Free online tool

Analyze service worker registration diagnostics for scope mismatches, HTTPS requirements, script MIME issues, response status problems, and cache update delays - Free online service worker debugger

Analyze tsconfig.json for strictness gaps, module and path alias risks, project-health issues, and actionable fix suggestions - Free online tsconfig analyzer

Analyze package.json dependency strategy, script risk posture, deprecated packages, and project-health settings with actionable fix suggestions - Free online package.json dependency checker

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Analyze environment variable value types using schema rules or naming heuristics to detect config type mismatches and runtime risks with actionable fixes - Free online env key type validator

Analyze feature flag rule definitions for rollout range correctness, owner metadata, expiry hygiene, and governance quality with actionable fixes - Free online feature flag rule validator

Analyze A/B experiment configuration for split integrity, rollout policy safety, ownership gaps, and governance quality with actionable fixes - Free online A/B test configuration validator

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Analyze HTML landmark structure and ARIA landmark roles. Detect missing main, navigation, header, and footer landmarks with actionable accessibility recommendations - Free online accessibility landmark checker

Analyze HTML forms for missing labels and ARIA naming gaps. Detect unlabeled input, select, and textarea controls with actionable accessibility recommendations - Free online accessibility form label checker

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Analyze internal links in HTML and detect broken fragment targets, placeholder anchors, and duplicate ID issues that can hurt navigation and SEO - Free online broken internal link checker

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Analyze HTML email markup for unsupported tags, risky CSS, insecure links, and cross-client compatibility concerns - Free online HTML email compatibility checker

Analyze AdSense readiness signals including legal pages, consent indicators, ads.txt/app-ads.txt coverage, and technical foundations with weighted scoring and blocker detection - Free online AdSense precheck

Preview how your page appears when shared on Facebook, X (Twitter), LinkedIn, WhatsApp, Slack, and Discord. Check og:title, og:description, og:image, Twitter Cards with a scored report - Free online OG preview tool

Check your favicon implementation for completeness and cross-platform compatibility. Validate ICO, PNG, SVG, Apple Touch Icon, Web App Manifest, Safari mask icon, Microsoft tiles, theme color, and sizes - Free online favicon checker

Browse tables, view schemas, and execute raw SQL queries client-side on SQLite database files online. 100% private, local, and free.

Render any JSON array of objects as an interactive sortable table - search, filter, sort by column, and export as CSV. Free online JSON to table tool.

Paste any Excel or Google Sheets formula and get a plain-English explanation instantly - supports IF, VLOOKUP, XLOOKUP, SUMIFS, INDEX/MATCH, and 100+ functions. Free online formula explainer.

Parse, search, filter, and inspect huge NDJSON and text log files online page-by-page. 100% local, crash-proof, and private.

Transform regular expressions into interactive railroad diagrams, explore the AST breakdown, and test live matches - Free online regex visualizer

Parse any URL into protocol, host, path, and query components, edit parameters in a visual grid, and rebuild clean URLs - Free online URL parser

Convert CSV data into a styled, sortable, and searchable HTML table with pagination and HTML export - Free online CSV to table converter

Summarize and pivot CSV data into a grouped cross-tabulation table with sum, count, average, min, max, and count distinct aggregations - Free online pivot table generator

Estimate Protobuf wire size vs equivalent JSON - per-field type inference, byte breakdown, and JSON+GZIP vs Protobuf+GZIP comparison. Free online protocol buffer size estimator, no signup required.

Calculate whether HTTP compression is worth the CPU cost given TTL, cache hit rate, and traffic volume - models bandwidth savings vs CPU overhead for GZIP, Brotli, DEFLATE, and Zstandard. Free online compression planner, no signup required.

Paste HTML and analyze total weight - breaks down inline CSS, inline JS, base64 images, SVGs, and comments with GZIP and Brotli compression estimates and optimization recommendations. Free online HTML page weight analyzer, no signup required.

Paste a @font-face CSS block and analyze font formats - detects missing WOFF2, legacy EOT/SVG formats, missing font-display, GDPR issues, and generates an optimized CSS output. Free online web font delivery optimizer, no signup required.

Analyze a QR code payload and calculate the required QR version - suggests compression strategies (uppercase conversion, URL shortening, EC level reduction) to reduce QR complexity. Free online QR code data size optimizer, no signup required.

Count sentences in any text block instantly with abbreviation-aware and decimal-aware boundary detection. View a numbered sentence list, copy a report, and analyze word and paragraph counts - Free online sentence counter.

Paste your speech or script and instantly calculate delivery time at slow (100 WPM), average (130 WPM), and fast (160 WPM) speaking speeds. Custom WPM support included - Free online speaking time estimator.

Count paragraphs in any text block instantly with blank line detection, line-break mode, and detailed writing metrics. View a numbered paragraph list, copy a report - Free online paragraph counter.

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Obfuscate Lua code by renaming variables, encoding strings, and removing comments - Free online Lua obfuscator

Improve readability of obfuscated Lua code by decoding common string.char payloads, restoring placeholder identifiers, and formatting output - Free online Lua deobfuscator helper

Remove single-line and block comments from JavaScript code while preserving strings, template literals, regex, and logic - Free online JavaScript comment remover

Remove single-line and block comments from TypeScript code while preserving types, template literals, and logic - Free online TypeScript comment remover

Remove # comments from Python code while preserving strings, docstrings, and logic - Free online Python comment remover

Remove line and nested block comments from Dart code while preserving strings and logic - Free online Dart comment remover

Remove // and /* */ comments from Java code while preserving strings, chars, text blocks, and logic - Free online Java comment remover

Remove line and nested block comments from Swift code while preserving strings and logic - Free online Swift comment remover

Debug shell scripts for reliability and safety issues like unbalanced quotes, risky eval usage, and unsafe command patterns - Free online shell script debug assistant

Remove -- and /* */ comments from SQL queries while preserving quoted literals and syntax - Free online SQL comment remover

Remove <!-- --> comments from HTML while preserving script, style, and textarea raw content - Free online HTML comment remover

Remove /* */ comments from CSS while preserving strings, URLs, and declarations - Free online CSS comment remover

Remove <!-- --> comments from XML while preserving declarations, CDATA, and structure - Free online XML comment remover

Remove # comments from YAML while preserving quoted values and structure - Free online YAML comment remover

Remove # comments from TOML while preserving quoted and multi-line values - Free online TOML comment remover

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Remove # comments from Dockerfiles while preserving parser directives and quoted values - Free online Dockerfile comment remover

Remove #, // and /* */ comments from Terraform HCL while preserving strings and heredoc values - Free online Terraform HCL comment remover

Remove # comments from Nginx config files while preserving quoted directive values - Free online Nginx config comment remover

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Remove // and /* */ comments from Protobuf (.proto) files while preserving messages, enums, services, and options - Free online Protobuf comment remover

Remove # comments from GraphQL schema and operation files while preserving descriptions, types, and query structure - Free online GraphQL comment remover

Remove # comments from R scripts while preserving strings, formulas, and data-processing logic - Free online R comment remover

Remove //, #, and block comments from PHP code while preserving strings, heredoc/nowdoc blocks, and logic - Free online PHP comment remover

Remove # and =begin/=end comments from Ruby code while preserving strings, heredoc content, and logic - Free online Ruby comment remover

Remove // and /* */ comments from C code while preserving strings, chars, and logic - Free online C comment remover

Remove // and /* */ comments from C++ code while preserving strings, chars, and logic - Free online C++ comment remover

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Remove // and /* */ comments from Go code while preserving quoted, rune, and raw backtick literals - Free online Go comment remover

Remove line and nested block comments from Rust code while preserving strings, chars, and raw literals - Free online Rust comment remover

Remove line and nested block comments from Kotlin code while preserving strings and logic - Free online Kotlin comment remover

Remove all single-line and multi-line comments from Lua code while preserving strings and logic - Free online Lua comment remover

Format and beautify Lua code with clean indentation, consistent spacing, and readable structure - Free online Lua formatter

Format and pretty-print SQL queries with uppercase keywords, consistent indentation, and clean line breaks - supports SELECT, INSERT, UPDATE, DELETE, CREATE, CTEs, and subqueries - Free online SQL formatter

Compare two JSON documents line by line with unified diff output, similarity stats, and whitespace controls - Free online JSON diff checker

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Format and beautify GraphQL schemas, queries, and mutations with proper indentation and consistent structure - Free online GraphQL formatter

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Format and beautify Nginx configuration files with proper indentation, directive spacing, and clean block structure - Free online Nginx config formatter

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Format and beautify HashiCorp Configuration Language (HCL) files with proper indentation, spacing, and clean block structure - Free online HCL formatter

Format and beautify Dockerfiles with uppercase instructions, consistent spacing, proper continuation indentation, and multi-stage build support - Free online Dockerfile formatter

Format and beautify Protocol Buffers (.proto) files with proper indentation, field spacing, and clean message/service structure for gRPC - Free online Protobuf formatter

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Format and beautify Verilog and SystemVerilog HDL code with consistent 4-space indentation, proper operator spacing, clean module structure, and standard conventions - Free online Verilog formatter

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Repair malformed Markdown tables by normalizing separators, aligning columns, and cleaning table spacing for GitHub-compatible output - Free online Markdown table repair tool

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Validate shell scripts for parser-level syntax issues including unclosed blocks, unmatched tokens, and structure mistakes with line diagnostics - Free online shell script syntax checker

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Decode PHP warnings, notices, and fatal runtime errors into likely causes and first-fix guidance - Free online PHP error message explainer

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Decode SQL parser and database diagnostics into likely causes and practical first-fix guidance - Free online SQL syntax error explainer

Validate SQL query syntax, catch risky query patterns, and review SQL diagnostics with line-aware feedback - Free online SQL query validator

Detect costly SQL anti-patterns, lock-contention hints, and optimization opportunities from query text and diagnostics - Free online SQL performance smell checker

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Map CSV headers to JSON Schema properties with type inference and required-field strategies - Free csv to json schema tool

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Detect personally identifiable information in CSV columns using header and value-pattern analysis with confidence scores - Free detect pii in csv tool

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Resolve Git conflict markers in .env files with merge strategy controls and duplicate-key cleanup - Free merge env files tool

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Detect CSS cascade override risks, specificity spikes, duplicate selectors, and !important overuse with line-aware guidance - Free online CSS specificity conflict checker

Visualize CSS selector specificity tuples, cascade weight distribution, and high-risk selector patterns with ranked diagnostics - Free online css specificity calculator

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Parse log streams, classify severity, and group recurring error signatures for faster debugging and incident triage - Free online log parser and error grouper

Analyze server logs to classify severity, group recurring failures, and surface backend incident hotspots - Free online server log analyzer

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Analyze redirect mappings and logs to detect loops, long redirect chains, and migration issues that impact crawl efficiency - Free online redirect chain checker

Test and simulate Nginx and Apache redirect rules to catch loops, chain bloat, and syntax mistakes before deployment - Free online redirect rule tester

Validate canonical tags and URL mappings for conflicts, non-HTTPS targets, and canonical normalization issues that affect SEO indexing - Free online canonical url checker

Test meta robots and X-Robots-Tag directives for indexing conflicts, invalid values, and crawler-policy consistency issues - Free online meta robots checker

Validate hreflang tags and locale URL mappings for invalid language-region codes, conflicting targets, and missing x-default fallback - Free online hreflang validator

Validate reciprocal hreflang return links across locale pages to detect missing back-links, language mismatches, and conflicting alternate targets - Free hreflang return tag checker

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Detect circular dependency loops in directed module edge lists to improve architecture stability - Free online circular dependency detector

Analyze timestamp and date parsing inputs for timezone ambiguity, mixed formats, and cross-region runtime pitfalls - Free online timezone bug analyzer

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Detect ambiguous datetime parsing patterns, mixed date formats, and runtime-specific parsing pitfalls - Free online date parsing bug checker

Decode and validate JWT tokens for malformed segments, Base64URL decoding issues, claim timestamp problems, expired tokens, and auth security pitfalls - Free online JWT decoder and validator

Calculate exact JWT expiration countdown from exp claims and diagnose token lifetime issues with UTC and local timestamps - Free online JWT expiry countdown calculator

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Generate secure CSP nonce and hash tokens for inline script and style sources to harden Content-Security-Policy headers - Free online CSP nonce and hash generator

Detect insecure HTTP assets in HTML, CSS, headers, and logs that can trigger browser blocking on HTTPS pages - Free online mixed content checker

Analyze SSL certificate metadata for expiry risk, weak signature algorithms, key-size posture, SAN coverage, and deployment readiness - Free online SSL certificate health checker

Validate DNS zone records for syntax errors, CNAME conflicts, MX and host target issues, SPF duplication, and DMARC policy gaps - Free online DNS record validator

Paste a BIND-style zone file to validate syntax, detect missing SOA and NS records, check serial number format, find CNAME conflicts, and review MX/TXT/SPF/DMARC configuration - free online DNS zone file validator.

Validate SPF TXT records for syntax mistakes, unsafe all policy usage, duplicate SPF entries, and sender-authorization quality - Free online SPF record validator

Estimate SPF flattening risk using DNS lookup count, include-chain depth, unresolved references, and permerror exposure before TXT deployment - Free online SPF flatten checker

Validate DKIM TXT records for syntax errors, missing required tags, key-format quality, and selector deployment readiness - Free online DKIM record validator

Plan DKIM selector naming, key rotation cadence, overlap windows, and reserve capacity using actionable DKIM selector best practices - Free online DKIM selector planning helper

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Validate DMARC TXT records for syntax quality, p/sp policy correctness, alignment posture, and reporting URI configuration - Free online DMARC record validator

Analyze email subject lines for mobile and desktop truncation risk, spam-like wording, readability quality, and rewrite opportunities - Free online email subject line checker

Count SMS characters and estimate GSM-7 versus Unicode segment split with boundary diagnostics and rewrite suggestions - Free online SMS character counter

Format phone numbers to E.164 with country-prefix handling, extension cleanup, and line-by-line diagnostics - Free online e164 phone formatter

Split long shipping addresses into structured address lines with unit handling and overflow diagnostics - Free online split address lines tool

Validate VAT number format by country with prefix normalization, syntax diagnostics, and canonical VAT output - Free online vat number format checker

Validate IBAN format with country-length rules, checksum diagnostics, and canonical formatting output - Free online iban format checker

Check GST invoice number patterns for prefix policy, fiscal-year token usage, duplicate risks, and sequence consistency - Free online gst invoice format checker

Generate QR code payload strings for URL, WiFi, and vCard formats with syntax checks and scan-readiness diagnostics - Free qr code payload generator

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Generate password policy regex patterns with configurable length and character requirements, then test sample passwords - Free password regex generator

Analyze consent and privacy text readability using reading-ease scores, grade-level insights, and legal-jargon diagnostics - Free privacy policy readability checker

Map cookie inventory entries into compliance-ready categories with confidence scoring, unknown-cookie alerts, and purpose-signal checks - Free cookie categories compliance tool

Compare policy versions with section-level added, removed, and changed clauses plus sensitive-term diagnostics - Free tool to compare privacy policy versions

Analyze URL inventories to discover contextual internal linking opportunities with overlap scoring and anchor suggestions - Free internal linking tool seo assistant

Test title templates against variable rows to catch duplicate outputs, keyword gaps, and truncation risks before publish - Free seo title template generator QA tool

Generate click-focused meta description variants with keyword coverage, duplicate checks, and SERP-length diagnostics - Free meta description generator seo tool

Classify keywords into informational, navigational, commercial, transactional, local, and mixed intent with confidence diagnostics - Free keyword intent classifier

Analyze keyword lists to predict which Google SERP features (Featured Snippets, Local Packs, Site Links, Image Packs, Reviews, Shopping, etc.) they will trigger based on query modifiers. Free online SERP features checker.

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Convert FAQ question and answer content into FAQPage JSON-LD with duplicate checks and schema-quality diagnostics - Free faq schema generator

Generate HowTo JSON-LD from instructional steps with duplicate checks, optional tools and supplies, and schema diagnostics - Free howto schema generator

Generate BreadcrumbList JSON-LD from breadcrumb paths with URL validation, duplicate checks, and script-ready output - Free breadcrumb schema generator

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Check review schema eligibility with aggregateRating validation, metadata quality checks, and policy-risk diagnostics - Free review schema validator

Compare Name Address Phone data across listings to detect citation mismatches and improve local SEO trust - Free NAP consistency checker

Count Apple App Store and Google Play metadata field lengths to catch overflow risk and ASO submission errors - Free app store character counter

Format YouTube chapter timestamps from messy notes, validate chapter order, and generate copy-ready description timelines - Free YouTube timestamp generator

Clean rough transcripts by fixing punctuation, capitalization, filler noise, and repeated words with timestamp-aware processing - Free transcript cleaner

Shift SRT subtitle timestamps forward or backward with millisecond precision, overlap diagnostics, and clamp-to-zero safety - Free SRT timestamp adjuster

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Convert plain process text into SOP checklist steps with owner checks, verification guidance, and risk-aware output - Free SOP checklist generator

Parse user-agent strings into browser, OS, device, bot, and spoofing-risk summaries with confidence diagnostics - Free user agent parser online

Encode plain text into safe HTML entities or decode entity strings back into readable text with named, decimal, and hex output options - Free HTML entity tool

Calculate subnet masks, network ranges, usable hosts, wildcard masks, and private/public CIDR diagnostics - Free CIDR range calculator

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Validate DNS propagation outputs for inconsistent resolver answers, stale cache signals, TTL delays, and regional rollout gaps - Free online domain propagation checker

Estimate DNS propagation completion time from resolver samples, TTL values, answer drift, and failure signals - Free dns propagation time checker

Generate status page updates for investigating, identified, monitoring, and resolved phases with customer-safe wording and timeline-aware context - Free incident update template generator

Score support tickets with urgency, impact scope, customer tier, aging, and SLA risk context for faster triage decisions - Free support ticket priority matrix tool

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Inspect HTTP response headers for security directives, cache consistency, cookie attributes, and protocol-level mistakes - Free online HTTP headers inspector

Compare baseline and target HTTP headers to detect added, removed, and changed values across environments with line-aware diagnostics - Free online HTTP header diff checker

Compare cache update precision, topology, and personalization factors to choose ETag, Last-Modified, or dual-validator HTTP strategy - Free etag last modified difference helper

Choose the best service worker runtime caching strategy using resource behavior, freshness constraints, offline goals, and cache budget inputs - Free service worker caching strategy tool

Validate GraphQL schema SDL for syntax, type references, duplicate definitions, root schema wiring, and diagnostics hints - Free online GraphQL schema validator

Estimate GraphQL query complexity using field depth, fan-out patterns, fragments, directives, and operation type weighting - Free online GraphQL query cost estimator

Check REST API endpoint paths for mixed naming styles, inconsistent parameter notation, versioning drift, trailing slash inconsistency, and verb-based route anti-patterns - Free REST endpoint naming conventions checker

Choose the right API versioning approach using exposure model, breaking-change cadence, cache behavior, client control, and migration risk insights - Free API versioning strategy tool

Validate Redis key naming standards for delimiter consistency, prefix policy, segment depth, wildcard safety, and duplicate-key drift - Free Redis key naming checker

Sanitize Kubernetes resource names against DNS subdomain, RFC 1123 label, and RFC 1035 label rules with collision-aware diagnostics - Free Kubernetes name validator

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Validate Protocol Buffer (.proto) schemas for syntax issues, field-number conflicts, enum/service issues, naming violations, and proto2/proto3 rule mismatches - Free online Protobuf syntax validator

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Validate docker-compose.yml files for service definitions, port conflicts, volume/network references, dependency ordering, environment variables, and best-practice violations - Free online Docker Compose validator

Validate Nginx configuration files for syntax errors, SSL/TLS issues, proxy misconfigurations, security vulnerabilities, and best-practice violations - Free online Nginx validator

Validate Apache httpd.conf and .htaccess files for syntax errors, container mismatches, SSL/TLS issues, deprecated directives, security vulnerabilities, and best-practice violations - Free online Apache validator

Validate Caddyfile configurations for syntax errors, block mismatches, reverse proxy mistakes, TLS issues, and best-practice violations - Free online Caddy validator

Validate HAProxy config files for syntax errors, section wiring issues, backend reference mistakes, bind/server problems, and operational best-practice gaps - Free online HAProxy config validator

Validate Terraform HCL for syntax issues, security anti-patterns, duplicate blocks, and infrastructure best-practice gaps - Free online Terraform HCL validator

Decode Terraform plan/apply diagnostics into likely causes and practical first-fix suggestions for faster infrastructure incident triage - Free online Terraform plan error explainer

Validate Kubernetes YAML manifests for syntax errors, missing fields, apiVersion/kind issues, container configuration, resource limits, and best-practice violations - Free online Kubernetes YAML validator

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Validate .gitlab-ci.yml for syntax errors, stage mismatches, missing script blocks, and job dependency issues - Free online GitLab CI YAML validator

Validate Jenkins pipeline config for syntax errors, missing pipeline blocks, malformed stage declarations, and CI reliability issues - Free online Jenkinsfile validator

Validate Prettier configuration files for syntax errors, invalid option values, malformed overrides, and quality warnings - Free online .prettierrc validator

Validate ESLint configuration files for syntax errors, invalid rule severity values, malformed overrides, and schema mismatches - Free online .eslintrc validator

Validate Stylelint configuration files for syntax errors, invalid top-level key types, malformed rules, and override schema issues - Free online .stylelintrc validator