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Codec: avc1.640820

86.26% Encoder Support
275,921 of 319,855 sessions supported encoding
99.94% Decoder Support
268,718 of 268,892 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,855 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 142,518 / 143,553 99.86% 19,812 / 19,839 — 96.32% 61,294 / 63,635 97.48% 7,497 / 7,691
SafariSafari
 — 2.07% 177 / 8,555 1.45% 454 / 31,243 — —
EdgeEdge
 99.81% 30,958 / 31,017 100.0% 378 / 378 — 98.37% 964 / 980 100.0% 66 / 66
FirefoxFirefox
 96.26% 9,114 / 9,468 100.0% 1,295 / 1,295 — 0.0% 0 / 37 98.71% 1,300 / 1,317

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,892 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,113 / 121,143 99.87% 16,147 / 16,168 — 99.98% 53,657 / 53,666 99.09% 6,459 / 6,518
SafariSafari
 — 99.92% 7,168 / 7,174 99.97% 25,605 / 25,612 — —
EdgeEdge
 100.0% 27,080 / 27,081 100.0% 337 / 337 — 100.0% 900 / 900 100.0% 59 / 59
FirefoxFirefox
 100.0% 7,706 / 7,706 100.0% 1,066 / 1,066 — 0.0% 0 / 25 99.34% 1,061 / 1,068