Web features explorer

Zstandard compression

Newly Available (since 2026-02-11)
Expected to be Widely Available on 2028-08-11

Zstandard or zstd is a fast lossless compression algorithm. When used as a content encoding, it is often faster and offers better compression than brotli.

Browser support (view on caniuse.com)

  • Chrome 123 Released on 2024-03-19
  • Chrome Android 123 Released on 2024-03-19
  • Edge 123 Released on 2024-03-22
  • Firefox 126 Released on 2024-05-14
  • Firefox for Android 126 Released on 2024-05-14
  • Safari 26.3 Released on 2026-02-11
  • Safari on iOS 26.3 Released on 2026-02-11

MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~38.876% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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