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Codec: avc1.640432

86.25% Encoder Support
276,534 of 320,607 sessions supported encoding
99.94% Decoder Support
269,395 of 269,558 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,607 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.25% 143,265 / 144,350 99.87% 19,696 / 19,722 — 96.26% 61,152 / 63,530 97.67% 7,666 / 7,849
SafariSafari
 — 2.17% 185 / 8,543 1.48% 462 / 31,319 — —
EdgeEdge
 99.8% 30,786 / 30,847 100.0% 360 / 360 — 98.12% 939 / 957 98.39% 61 / 62
FirefoxFirefox
 96.06% 9,252 / 9,631 100.0% 1,321 / 1,321 — 0.0% 0 / 36 98.7% 1,292 / 1,309

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,558 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,897 / 121,923 99.88% 16,048 / 16,067 — 99.98% 53,658 / 53,668 99.28% 6,596 / 6,644
SafariSafari
 — 99.92% 7,101 / 7,107 99.98% 25,611 / 25,616 — —
EdgeEdge
 100.0% 26,819 / 26,819 100.0% 319 / 319 — 100.0% 893 / 893 98.28% 57 / 58
FirefoxFirefox
 100.0% 7,905 / 7,905 100.0% 1,080 / 1,080 — 0.0% 0 / 24 98.96% 1,049 / 1,060