Consulta de Extensão de Arquivo
Pesquise qualquer extensão de arquivo — .pdf, .jpg, .docx, .zip, .mp3, .py e muito mais — para ver na hora o nome completo do formato, o tipo MIME registrado na IANA, a assinatura hexadecimal (bytes mágicos), os programas comuns que abrem o arquivo e cenários de uso típicos. Navegue por categoria ou pesquise diretamente. Todos os dados são incorporados na página para resultados instantâneos — sem cadastro.
Look up any file extension to see its full name, MIME type, associated programs, typical usage, and magic bytes signature. Browse by category or search for a specific extension - all data sourced from IANA and industry references.
Open-source archive format with high compression ratio using LZMA and LZMA2 algorithms. Strong AES-256 encryption support.
High-ratio compression, secure archives, open-source distribution
Lossy audio compression standard designed as successor to MP3. Better sound quality at the same bitrate. Default format for iTunes, YouTube, and Nintendo Switch.
Apple ecosystem, YouTube audio, streaming, portable music
Modern Microsoft Access database format. Supports complex data types, attachments, and integration with SharePoint.
Desktop databases, business data management, rapid application development
Native vector file format for Adobe Illustrator. Contains single-page vector designs and can be opened directly in Illustrator or converted to other formats.
Vector illustration, logo design, brand assets, print materials
Package format for Android applications. Compressed ZIP archive containing DEX bytecode (compiled Java/Kotlin), resources, and manifest.
Android app distribution, mobile app development
macOS application package. Despite appearing as a single file, it is actually a directory (bundle) containing the executable, resources, and metadata.
macOS applications, Apple ecosystem
Legacy video container format developed by Microsoft (1992). Stores video and audio data in standard RIFF chunks. Large file sizes compared to modern formats.
Legacy video editing, digital cameras, PC video playback
Next-generation image format based on AV1 video compression. Offers up to 50% better compression than JPEG with support for HDR and wide color gamut.
Modern web images, high-efficiency compression, HDR photography
Bitmap image format - an uncompressed raster graphics format native to Microsoft Windows. Stores pixel data without compression, resulting in large file sizes.
Legacy applications, raw pixel data storage, Windows wallpaper
Open-source compression format using the Burrows-Wheeler transform algorithm. Offers higher compression ratios than gzip at the cost of speed.
High-ratio file compression, Unix software distribution
Binary or Base64-encoded X.509 certificate. Used by web servers to establish trusted SSL/TLS connections. Contains public key and identity information.
Web server security, HTTPS, code signing, email encryption
Style sheet language used to describe the presentation of HTML documents. Controls layout, colors, fonts, and responsive design of web pages.
Web styling, responsive design, animations, UI theming
Simple file format for storing tabular data where each line represents a row and commas separate columns. Universally supported by spreadsheet and database applications.
Data exchange, database exports, analytics, contact management
Generic extension for database files. Can refer to various database formats including SQLite, Windows Thumbnail Cache, or custom application databases.
Local databases, mobile app storage, application data
Legacy database format popular in the 1980s-90s. Simple tabular data format still used in GIS systems (shapefiles) and legacy business applications.
GIS (shapefile attributes), legacy database migration, data archiving
Container format for DirectX textures, developed by Microsoft. Supports various compression formats including BC1-BC7. Used extensively in game development.
Game textures, 3D graphics, DirectX applications
Standard package format for Debian-based Linux distributions (Debian, Ubuntu, Linux Mint). Contains compiled software and metadata for the APT package manager.
Debian/Ubuntu software distribution, Linux package management
Microsoft Windows shared library containing code and data that can be used by multiple programs simultaneously. Essential for Windows application architecture.
Windows shared libraries, application components, system extensions
Disk image format used by macOS for distributing software. Compressed and optionally encrypted, it appears as a mounted volume when opened.
macOS software distribution, disk imaging, encrypted backups
Legacy word processing format used by Microsoft Word (97-2003). Uses OLE (Object Linking and Embedding) container format for structured document storage.
Word processing, business documents, reports, letters, resumes
Modern word processing format used by Microsoft Word (2007+). Based on XML and ZIP compression - smaller and more robust than legacy .doc format.
Modern word processing, business documents, academic papers
Native file format for AutoCAD, the industry-standard CAD software. Stores 2D and 3D design data, metadata, and database information.
Architectural design, engineering blueprints, construction plans
Open CAD data format developed by Autodesk for interoperability between CAD programs. Supports both ASCII and binary representations of 2D/3D designs.
CAD file exchange, 3D design interoperability, engineering collaboration
Vector image format based on PostScript, used in print production and desktop publishing. Can contain both vector and raster elements.
Print production, logo design, vector illustration, desktop publishing
Portable Executable (PE) format for Windows applications. Contains compiled machine code, resources, and metadata required by Windows to run the program.
Windows applications, installers, system utilities, games
High-dynamic-range (HDR) image format developed by Industrial Light & Magic for visual effects. Supports 16-bit and 32-bit floating-point pixels, multiple compression modes.
VFX, compositing, 3D rendering, HDR photography, visual effects pipelines
Proprietary 3D interchange format from Autodesk. Supports animation, skinning, morph targets, and complex scene graphs. Industry standard for game development.
Game development, 3D animation, character rigging, cross-platform 3D
Open-source lossless audio compression format. Reduces file size by about 50-60% compared to WAV while preserving all original audio data.
Lossless music archiving, audiophile collections, professional audio
Container format used by Adobe Flash Player for delivering video over the internet. Format now deprecated as Flash has been discontinued.
Legacy web video, Flash-based streaming, older video platforms
Bitmap image format supporting up to 256 colors and simple animations. Popular for short animated clips and memes on the web.
Simple animations, memes, web graphics, reaction images
Binary version of the GL Transmission Format (glTF) - the standard 3D asset format for the web. Bundles geometry, textures, and animations into a single file.
Web 3D, augmented reality, e-commerce, 3D product visualization
File compression format using the DEFLATE algorithm. Most commonly used with .tar files (.tar.gz) and for compressing individual files on Unix systems.
Unix file compression, web compression (gzip), software distribution
High-dynamic-range image format using RGBE encoding. Stores real-world lighting information for use in 3D rendering and environment maps.
HDRI environment maps, 3D lighting, VFX, architectural visualization
High Efficiency Image Container - Apple's preferred image format based on HEVC (H.265) compression. Stores images at roughly half the size of JPEG with better quality.
iOS photography, Apple ecosystem, efficient image storage
Standard language for creating web pages and web applications. Describes the structure of content using tags and attributes rendered by web browsers.
Web pages, email templates, web applications, documentation
Icon file format used by Microsoft Windows for application icons, shortcuts, and favicons. Can store multiple sizes and color depths in a single file.
Windows application icons, website favicons, file type associations
Archive file format of an optical disc (CD/DVD/Blu-ray). Contains the complete file system of the disc, making it useful for software distribution and backup.
OS installation media, software distribution, disc backup, virtual drives
General-purpose programming language designed for platform independence via the Java Virtual Machine (JVM). Used for enterprise applications, Android apps, and web services.
Enterprise software, Android apps, web services, big data
Joint Photographic Experts Group - identical to JPG format with a longer file extension. Used interchangeably with .jpg on most platforms.
Digital photography, web images, graphic design
Joint Photographic Experts Group - the most widely used lossy image format for photographs and web graphics. Supports millions of colors with adjustable compression.
Digital photography, web images, social media, email attachments
High-level programming language primarily used for web development. Runs in browsers for interactive web pages and on servers via Node.js.
Web development, server-side (Node.js), mobile apps, browser extensions
Lightweight data interchange format based on JavaScript object syntax. Human-readable and widely used for API responses, configuration files, and data storage.
Web APIs, configuration files, data storage, NoSQL databases
Generic file extension for private cryptographic keys. May contain RSA, ECDSA, or other algorithm keys encoded in PEM or DER format.
SSL/TLS key storage, SSH authentication, code signing
Audio-only container format based on MPEG-4 Part 14. Commonly used for Apple AAC-encoded audio files purchased from iTunes or created with QuickTime.
iTunes Store, Apple ecosystem, podcasts, audiobooks
Legacy Microsoft Access database format (97-2003). Uses JET Database Engine or ACE for storing relational data, queries, forms, and reports.
Desktop databases, small business data management, legacy applications
Open-source, standards-based multimedia container format. Supports unlimited tracks of video, audio, subtitles, and attachments in a single file.
High-definition video, multi-track content, open-source video distribution
Multimedia container format developed by Apple. Widely used in professional video production and post-production workflows.
Professional video production, Apple ecosystem, video editing
Most popular lossy audio compression format. Dramatically reduces file size while maintaining near-CD quality. Universal compatibility across all devices.
Music distribution, podcasts, audiobooks, portable audio players
Most widely used digital multimedia container format. Supports video (H.264/H.265), audio (AAC/MP3), and subtitles in a single file.
Online video, streaming (YouTube), mobile video, digital distribution
Microsoft Windows installer package format. Contains all files and configuration data needed to install a software application using the Windows Installer service.
Software installation, enterprise deployment, patch management
Geometry definition file format for 3D graphics. Stores vertex positions, texture coordinates, normals, and face definitions in human-readable text.
3D model exchange, game development, 3D printing, VFX
Open standard word processing format used by LibreOffice, OpenOffice, and other open-source office suites. ISO-standardized alternative to Microsoft Word formats.
Open-source word processing, document interchange, cross-platform documents
Open-source audio container format using Vorbis compression. Free of patents, commonly used in open-source games and applications.
Open-source audio, video game soundtracks, streaming, podcasting
Extension of the TrueType format co-developed by Microsoft and Adobe. Supports advanced typographic features like ligatures, alternates, and swashes.
Professional typography, print design, web fonts, branding
Virtual appliance package format (TAR archive) containing OVF descriptor, virtual disk files, and manifest. Used to distribute pre-configured virtual machines.
Virtual machine distribution, pre-configured appliances, cloud images
Microsoft/Adobe format for storing private keys, certificates, and certificate chains in a single encrypted file. Commonly used for code signing and client authentication.
Code signing, client certificates, certificate export/import
Universal document format developed by Adobe for reliable document exchange. Preserves fonts, formatting, and layout across all platforms.
Documents, contracts, forms, eBooks, presentations, technical reports
Base64-encoded format for storing X.509 certificates, certificate chains, and private keys. Widely used in SSL/TLS configuration on web servers.
SSL/TLS certificates, web server security, certificate chains, email encryption
Lossless image format with support for transparency (alpha channel). Developed as a patent-free replacement for GIF. Widely used for web graphics, icons, and screenshots.
Web graphics, icons, screenshots, transparent images, UI design
Legacy presentation format used by Microsoft PowerPoint (97-2003). OLE container format for storing slides, animations, and embedded media.
Presentations, slide decks, business pitches, educational content
Modern presentation format used by Microsoft PowerPoint (2007+). ZIP-compressed XML format supporting rich media, transitions, and advanced animations.
Modern presentations, business pitches, educational content
Native file format for Adobe Photoshop. Supports layers, masks, channels, paths, and various imaging features used in professional graphic design.
Graphic design, photo editing, UI/UX design, digital art
High-level, general-purpose programming language known for its readability and extensive standard library. Used in web development, data science, AI, and automation.
Data science, machine learning, web backends, automation, scripting
Proprietary archive format by Eugene Roshal offering strong compression and advanced features like recovery records and multi-volume archives.
Large file compression, multi-volume archives, data backup
Generic RAW image format - uncompressed pixel data straight from a camera sensor. Each camera manufacturer has its own RAW variant (CR2, NEF, ARW, etc.).
Professional photography, post-processing, digital negatives
Package format for Red Hat-based Linux distributions (Fedora, CentOS, RHEL). Contains compiled software and metadata for the RPM/YUM/DNF package managers.
Red Hat/Fedora software distribution, enterprise Linux
Cross-platform document format developed by Microsoft for exchanging formatted text between applications. Supports basic formatting like bold, italic, fonts, and colors.
Basic formatted documents, cross-platform text exchange
Self-contained, serverless, zero-configuration relational database engine. The most widely deployed database engine in the world (every smartphone uses it).
Mobile app storage, embedded databases, local data persistence
File format for 3D printing and computer-aided design. Describes surface geometry using triangular facets without color or texture.
3D printing, rapid prototyping, 3D model sharing
XML-based vector image format for defining two-dimensional graphics. Supports interactivity and animation. Resolution-independent and editable in any text editor.
Icons, logos, illustrations, web graphics, responsive design
Unix-based archive format that bundles multiple files into a single file without compression. Typically used with gzip (.tar.gz or .tgz) or bzip2 compression.
Linux/Unix distribution, server backups, source code packaging
Raster graphics format originally created for Truevision video boards. Supports up to 32-bit color with alpha channel. Common in game development and 3D rendering.
Game textures, 3D rendering, video production, legacy graphics
Short form of TIFF (Tagged Image File Format). Functionally identical to .tiff format.
Professional photography, print publishing, document scanning
Tagged Image File Format - a flexible raster format supporting multiple pages, layers, and compression methods. Widely used in professional photography and publishing.
Professional photography, print publishing, document scanning, archiving
Typed superset of JavaScript developed by Microsoft that compiles to plain JavaScript. Adds static type checking, interfaces, and modern ECMAScript features.
Large-scale web applications, enterprise development, type-safe JavaScript
Outline font standard developed by Apple and Microsoft. Widely used for screen and print fonts. Contains both the font outline data and rasterization instructions.
System fonts, web fonts, print design, graphic design
Virtual hard disk format developed by Microsoft for Windows virtualization (Hyper-V). Stores the contents of a virtual machine's hard drive.
Microsoft virtual machines, cloud migration (Azure), server virtualization
Virtual disk format used by VMware virtualization products. Stores the contents of a virtual machine's hard drive.
Virtual machines, server virtualization, development environments
Standard audio format for Windows developed by Microsoft and IBM. Stores raw waveform data (LPCM) for uncompressed, high-fidelity audio.
Professional audio, sound effects, audio editing, CD-quality archiving
Open, royalty-free media container format designed for the web. Uses VP8/VP9 video and Vorbis/Opus audio codecs.
HTML5 video, web streaming, open-source video distribution
Modern image format developed by Google providing both lossy and lossless compression. Typically 25-35% smaller than JPEG with equivalent quality.
Web publishing, performance optimization, next-gen image delivery
Proprietary audio format developed by Microsoft. Offers lossy and lossless variants with digital rights management (DRM) support.
Windows Media ecosystem, legacy DRM-protected content
Proprietary video format developed by Microsoft for the Windows Media framework. Supports DRM and is commonly used in legacy Windows applications.
Windows Media ecosystem, legacy streaming, PC video distribution
Font format designed specifically for web use, compressed version of TrueType/OpenType with added metadata. Supports optional encryption.
Web fonts, @font-face embedding, performance-optimized typography
Improved version of WOFF with up to 30% better compression using the Brotli algorithm. Current recommended format for web fonts.
Modern web fonts, performance-critical typography, Google Fonts
Legacy spreadsheet format used by Microsoft Excel (97-2003). Uses OLE container format for storing worksheet data, formulas, and charts.
Spreadsheets, financial data, data analysis, accounting
Modern spreadsheet format used by Microsoft Excel (2007+). ZIP-compressed XML format supporting large datasets, pivot tables, and advanced formatting.
Modern spreadsheets, financial modeling, data analysis, reporting
Markup language designed for storing and transporting structured data. Used extensively in web services, configuration files, and document formats.
Web services (SOAP), configuration, RSS/Atom feeds, document formats (SVG, DOCX)
Compression format based on LZMA2 algorithm. Achieves very high compression ratios, often surpassing gzip and bzip2. Used in Linux package distribution.
Linux package distribution, high-ratio compression
Ubiquitous compression and archival format supporting lossless compression. Can store multiple files and folders in a single archive, optionally encrypted.
File distribution, software downloads, email attachments, backup
Simply type a file extension in the search box (with or without the dot), or click a category chip above to browse by type. Each result card shows the file format name, description, IANA-registered MIME type, magic bytes (hex signature), common programs that open it, and typical usage scenarios. Use this tool to identify unknown files, verify MIME types for web development, or learn more about file formats.
Por que usar nossa Consulta de Extensão de Arquivo?
- Pesquisa instantânea de extensão de arquivo: comece a digitar qualquer extensão — com ou sem o ponto — e obtenha resultados instantâneos. Nossa Consulta de Extensão de Arquivo pesquisa mais de 150 entradas de formatos cobrindo imagens, documentos, áudio, vídeo, arquivos compactados, código, fontes, executáveis e mais. A filtragem ao vivo mostra resultados correspondentes enquanto você digita.
- Base de dados de formatos abrangente: cada entrada de extensão inclui o nome completo do formato, uma descrição detalhada, o tipo MIME registrado na IANA, a assinatura hexadecimal (bytes mágicos), os programas comuns que abrem o arquivo e cenários de uso típicos. Navegue por categoria ou pesquise extensões específicas com confiança.
- Informações de bytes mágicos e assinaturas de arquivo: conheça a assinatura hexadecimal exata com que cada formato de arquivo começa. Use essas informações para identificar arquivos pelo conteúdo em vez da extensão — uma habilidade essencial para forense digital, recuperação de arquivos e análise de segurança.
- Navegação rápida por categoria: não sabe qual extensão precisa? Navegue por categoria — Imagens, Documentos, Arquivos compactados, Áudio, Vídeo, Fontes, Código, 3D, Banco de dados, Segurança e mais. Cada categoria mostra todas as extensões relacionadas com todos os detalhes de relance.
Casos de uso comuns da Consulta de Extensão de Arquivo
- Investigações de segurança e forense: identifique arquivos desconhecidos encontrados durante auditorias de segurança ou investigações forenses. Consulte as assinaturas de arquivo, verifique se uma extensão corresponde ao conteúdo esperado e entenda a verdadeira natureza de arquivos suspeitos encontrados em sistemas comprometidos.
- Desenvolvimento web e manipulação de arquivos: verifique rapidamente tipos MIME de recursos web, configure cabeçalhos Content-Type adequados, defina validações de upload de arquivos e garanta que sua aplicação trate corretamente todos os formatos esperados. Consulte tipos MIME precisos registrados na IANA para qualquer extensão.
- Programação e desenvolvimento de software: desenvolvedores que trabalham com análise de arquivos, recursos de importação/exportação ou conversores de formato podem consultar rapidamente assinaturas de arquivo, tipos MIME e especificações de formato. Identifique quais programas suportam quais formatos para testes de compatibilidade.
- Formação em forense digital: estudantes e instrutores de cursos de forense digital podem usar esta ferramenta para aprender a identificar formatos de arquivo por bytes mágicos, entender as categorias de estrutura de arquivos e praticar o reconhecimento de arquivos por suas assinaturas binárias em vez de extensões.
- Recuperação de arquivos e restauração de dados: ao recuperar arquivos de mídias corrompidas ou imagens de disco brutas, consulte as extensões e seus bytes mágicos para identificar corretamente os dados recuperados. Combine as assinaturas hexadecimais com os tipos de arquivo para garantir reconstrução e nomeação adequadas.
- Gestão cotidiana de arquivos: já recebeu um arquivo com uma extensão desconhecida? Consulte na hora para saber o que é, qual programa pode abri-lo e como costuma ser usado. Chega de adivinhar ou procurar em fóruns — todas as informações estão aqui.
O que é uma extensão de arquivo?
Uma extensão de arquivo é o sufixo no final de um nome de arquivo (depois do ponto, por exemplo .pdf , .jpg , .docx ) que indica o formato do arquivo ou o tipo de dados que ele contém. Sistemas operacionais e aplicativos usam as extensões para determinar qual programa deve abrir o arquivo. Embora as extensões sejam a forma mais comum de identificar tipos de arquivo, elas podem ser facilmente alteradas ou falsificadas — um arquivo com extensão .pdf pode na verdade conter um executável. Por isso a análise de assinaturas de arquivo (bytes mágicos) é essencial para aplicações de segurança e forense. Nossa Consulta de Extensão de Arquivo fornece as informações precisas registradas na IANA para cada extensão, para que você tome decisões informadas sobre o tratamento de arquivos.
O que são bytes mágicos (assinaturas de arquivo)?
Bytes mágicos, também conhecidos como assinaturas de arquivo ou números mágicos, são os primeiros bytes de um arquivo que identificam de forma única seu formato. Por exemplo, imagens JPEG sempre começam com FF D8 FF , arquivos PDF começam com 25 50 44 46 (que se decodifica como «%PDF» em ASCII) e arquivos ZIP começam com 50 4B 03 04 . Essas assinaturas fazem parte da especificação do formato e são lidas pelas aplicações para determinar como analisar o conteúdo do arquivo. Diferentemente das extensões, os bytes mágicos não podem ser facilmente falsificados (embora existam arquivos poliglotas que combinam vários formatos), o que os torna o método mais confiável para identificar tipos de arquivo. Nossa Consulta de Extensão de Arquivo inclui a assinatura hexadecimal de cada extensão para que você verifique os arquivos pelo conteúdo real.
Entendendo os tipos MIME
Os tipos MIME (Multipurpose Internet Mail Extensions) são identificadores padronizados usados na internet para indicar a natureza e o formato dos arquivos. Eles seguem o formato tipo/subtipo , como image/jpeg , application/pdf ou video/mp4 . Servidores web enviam os tipos MIME no cabeçalho HTTP Content-Type para que os navegadores saibam como processar a resposta. A configuração correta dos tipos MIME é crítica para a segurança web — servir arquivos com tipos MIME incorretos pode levar a ataques XSS ou vulnerabilidades de execução de arquivos. Nossa Consulta de Extensão de Arquivo fornece o tipo MIME oficial registrado na IANA para cada extensão, ajudando desenvolvedores a configurar seus servidores corretamente e garantir o tratamento adequado de arquivos em suas aplicações.
Privacidade, segurança e disponibilidade
A Consulta de Extensão de Arquivo é uma ferramenta totalmente do lado do cliente — todos os dados de extensões estão incorporados diretamente na página, portanto nenhuma requisição ao servidor é feita quando você pesquisa ou navega. Não há uploads de arquivos, rastreamento de dados nem exigência de cadastro. A ferramenta é 100% gratuita, sem recursos premium ocultos, limites de uso ou anúncios além dos posicionamentos padrão do site. Seja você um profissional de forense digital, um desenvolvedor web ou apenas curioso sobre um arquivo que recebeu, esta ferramenta está sempre disponível sem custo.
Perguntas frequentes
Uma ferramenta de consulta de extensão de arquivo é um utilitário de referência que permite pesquisar qualquer extensão e ver informações detalhadas, incluindo o nome completo do formato, descrição, tipo MIME registrado na IANA, bytes mágicos (assinatura hexadecimal), programas comuns que abrem o arquivo e cenários de uso típicos.
A base de dados inclui mais de 150 entradas de extensões distribuídas em 17 categorias: Imagens, Documentos, Planilhas, Apresentações, Arquivos compactados, Áudio, Vídeo, Fontes, Código, Web, Dados, Executáveis, CAD/3D, Bancos de dados, Segurança e certificados, e Virtualização.
Sim! Clique em qualquer chip de categoria no topo da ferramenta para filtrar os resultados por categoria de tipo de arquivo. As categorias incluem Imagens, Documentos, Arquivos compactados, Áudio, Vídeo, Fontes, Código, Executáveis e mais.
Bytes mágicos são os primeiros bytes de um arquivo que identificam de forma única seu formato. Por exemplo, todos os arquivos JPEG começam com FF D8 FF. Os bytes mágicos são mais confiáveis que as extensões para identificar tipos de arquivo, porque fazem parte do conteúdo do arquivo e não podem ser facilmente falsificados.
Os dados das extensões são compilados de fontes confiáveis, incluindo o registro de tipos MIME da IANA, especificações de formatos de arquivo do setor e padrões de uso amplamente aceitos. A base de dados abrange formatos modernos e legados.
Esta ferramenta fornece informações sobre formatos de arquivo e seus tipos MIME, mas não pode verificar a segurança de um arquivo específico. Por segurança, combine-a com uma ferramenta detectora de bytes mágicos para confirmar que o tipo do arquivo corresponde à sua extensão.
Sim! 100% gratuita, sem cadastro, sem conta, sem limites de uso e sem recursos premium ocultos. Todos os dados de extensões estão incorporados diretamente na página — as pesquisas são instantâneas e não exigem requisições ao servidor.
Se você encontrar um arquivo com uma extensão que não está na nossa base de dados, tente pesquisar extensões semelhantes, use uma ferramenta detectora de bytes mágicos para ler a assinatura do arquivo ou verifique os metadados do arquivo em busca de pistas sobre sua origem.