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Codec: avc1.4d0032

98.99% Encoder Support
317,307 of 320,553 sessions supported encoding
99.93% Decoder Support
269,448 of 269,631 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,553 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 143,112 / 144,137 99.87% 19,619 / 19,645 — 97.6% 61,929 / 63,449 98.0% 7,734 / 7,892
SafariSafari
 — 99.89% 8,461 / 8,470 99.99% 31,233 / 31,237 — —
EdgeEdge
 99.8% 31,167 / 31,230 100.0% 384 / 384 — 98.75% 949 / 961 100.0% 58 / 58
FirefoxFirefox
 96.4% 9,319 / 9,667 100.0% 1,295 / 1,295 — 0.0% 0 / 37 99.21% 1,253 / 1,263

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,631 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,559 / 121,599 99.87% 15,961 / 15,981 — 99.99% 53,489 / 53,495 99.06% 6,652 / 6,715
SafariSafari
 — 99.89% 7,107 / 7,115 99.99% 25,743 / 25,746 — —
EdgeEdge
 100.0% 27,273 / 27,274 100.0% 344 / 344 — 100.0% 879 / 879 100.0% 52 / 52
FirefoxFirefox
 100.0% 7,899 / 7,899 100.0% 1,061 / 1,061 — 0.0% 0 / 25 99.71% 1,028 / 1,031