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Codec: avc1.641032

86.26% Encoder Support
275,929 of 319,894 sessions supported encoding
99.94% Decoder Support
268,778 of 268,940 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 319,894 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 142,718 / 143,774 99.84% 19,440 / 19,471 — 96.38% 61,131 / 63,430 97.52% 7,559 / 7,751
SafariSafari
 — 1.88% 160 / 8,513 1.47% 460 / 31,256 — —
EdgeEdge
 99.8% 30,994 / 31,056 100.0% 368 / 368 — 97.78% 967 / 989 100.0% 57 / 57
FirefoxFirefox
 95.91% 9,346 / 9,745 100.0% 1,342 / 1,342 — 0.0% 0 / 36 99.31% 1,299 / 1,308

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,940 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,426 / 121,451 99.86% 15,864 / 15,887 — 99.99% 53,550 / 53,555 99.22% 6,487 / 6,538
SafariSafari
 — 99.94% 7,169 / 7,173 99.98% 25,521 / 25,527 — —
EdgeEdge
 99.99% 27,006 / 27,008 100.0% 324 / 324 — 100.0% 914 / 914 100.0% 54 / 54
FirefoxFirefox
 100.0% 7,914 / 7,914 100.0% 1,109 / 1,109 — 0.0% 0 / 24 99.63% 1,077 / 1,081