RSS Feed Compressor
Paste an RSS or Atom XML feed to remove whitespace, comments, and optional CDATA wrappers — reduces feed size for CDN caching cost and faster subscriber polling. Supports RSS 2.0 and Atom. Runs entirely in your browser with no signup required.
Paste an RSS or Atom XML feed to remove whitespace, comments, and optional CDATA wrappers — reduces feed size for CDN caching cost and faster subscriber polling. Runs entirely in your browser. Your feed data never leaves your device.
Paste your RSS or Atom XML feed
Output will appear here after compression
Compression Options
Why Use Our RSS Feed Compressor?
Instant RSS Feed Compression
Paste any RSS or Atom feed and compress it instantly in your browser — removes whitespace and comments in milliseconds with no server upload required.
Secure RSS Feed Compressor Online
Your feed data never leaves your device. All compression runs locally in the browser — safe for feeds containing private or pre-publication content.
Granular Compression Options
Choose exactly what to remove — XML comments, whitespace, CDATA wrappers, or the XML declaration — with a live preview of the compressed output.
100% Free Forever
Compress as many RSS and Atom feeds as you need, completely free. No account, no subscription, no file size limits, and no ads.
Common Use Cases for RSS Feed Compressor
CDN Caching Cost Reduction
Compress your RSS feed before deploying to a CDN — smaller feeds reduce egress costs and improve cache hit rates for high-traffic feeds with millions of subscribers.
Podcast Feed Optimization
Compress podcast RSS feeds to reduce the bandwidth consumed by feed aggregators polling your feed every hour — especially impactful for feeds with large episode libraries.
Feed Reader Performance
Smaller feeds load faster in RSS readers and aggregators — compress your feed to improve the experience for subscribers on slow connections or mobile devices.
Server Bandwidth Savings
RSS feeds are polled frequently by aggregators like Feedly, Inoreader, and Google News — compressing the feed reduces server bandwidth for every polling request.
WordPress & CMS Feed Cleanup
WordPress and other CMS platforms often generate RSS feeds with excessive whitespace and comments — compress the feed output before caching it with a plugin.
API & Webhook Feed Delivery
When delivering RSS feeds via API or webhook, compress the payload to reduce transfer size — especially useful for feeds delivered over metered connections.
Understanding RSS Feed Compression
What is RSS Feed Compression?
RSS feed compression is the process of removing unnecessary whitespace, XML comments, and optional markup from RSS and Atom XML feeds to reduce their file size. RSS feeds are polled frequently by aggregators like Feedly, Inoreader, and podcast apps — every byte saved multiplies across millions of polling requests. Our free RSS feed compressor performs this compression entirely in your browser and supports both RSS 2.0 and Atom feed formats.
How Our RSS Feed Compressor Works
- Paste Your Feed: Copy your RSS or Atom XML feed and paste it into the input panel. Use the example buttons to load a sample feed.
- Choose Compression Options: Select which elements to remove — comments, whitespace, CDATA wrappers, or the XML declaration. The output updates instantly in your browser.
- Copy or Download: Copy the compressed feed to your clipboard or download it as a .xml file — then deploy it to your server or CDN.
What Gets Removed During Compression
- XML Comments:
<!-- ... -->blocks are removed entirely — they are invisible to feed readers and add no value to subscribers. - Whitespace: Spaces, tabs, and newlines between XML tags are collapsed — the feed structure is preserved but indentation is removed.
- CDATA Wrappers (optional):
<![CDATA[...]]>wrappers are removed while keeping the content — only safe if content has no unescaped HTML. - XML Declaration (optional):
<?xml version="1.0"?>is removed — most feed readers do not require it.
RSS Feed Compression + Server GZIP
For maximum bandwidth savings, combine feed minification with server-side GZIP compression. Minification reduces the raw XML size by 15–40%, and GZIP then compresses the minified content by a further 60–75%. Together, they typically achieve 70–85% total size reduction compared to the original uncompressed feed — critical for high-traffic feeds with millions of subscribers polling every hour.
Related Tools
JSON Key Shortener
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.
JSON vs MessagePack Size Comparison
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.
String Decompressor (GZIP/LZ)
Decompress GZIP+Base64, DEFLATE+Base64, and LZ-String compressed payloads back to readable text — supports all three LZ-String variants. Free online string decompressor.
ZIP File Extractor
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.
Frequently Asked Questions About RSS Feed Compressor
An RSS feed compressor removes whitespace, XML comments, and optional CDATA wrappers from RSS and Atom XML feeds to reduce their file size. Our free online RSS feed compressor runs entirely in your browser — no signup or server upload required.
No. The compressed feed is functionally identical to the original — all feed readers, podcast apps, and RSS aggregators parse whitespace-stripped XML correctly. The XML specification allows any amount of whitespace between elements, and removing it does not change the feed's meaning or structure.
Yes, complete privacy is guaranteed. All compression runs entirely client-side in your browser. Your feed data — including any pre-publication or private content — never leaves your device and is never uploaded to any server.
Yes. The RSS feed compressor is 100% free with no signup, no subscription, no feed size limits, and no ads. You can compress as many feeds as you need.
RSS 2.0 uses <item> elements inside a <channel> element and is the most widely supported format. Atom uses <entry> elements inside a <feed> element and is the IETF standard. Both are XML-based and compress equally well. The tool automatically detects which format you are using.
CDATA sections (<![CDATA[...]]>) are used to embed HTML content in feed descriptions without escaping special characters. Removing the CDATA wrapper keeps the content but may cause issues if the content contains characters like <, >, or & that need to be escaped. Only enable this option if you are sure your feed content does not contain unescaped HTML.
Typical RSS feeds achieve 15–40% size reduction from whitespace and comment removal alone. Feeds generated by CMS platforms like WordPress tend to have more whitespace and achieve higher reductions. The results panel shows the exact byte savings after compression.
Yes — combining feed minification with server-side GZIP compression gives the best results. Minification reduces the raw file size, and GZIP then compresses the minified content further. Together, they typically achieve 70–85% total size reduction compared to the original uncompressed feed.