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Codec: avc1.640c28

98.66% Encoder Support
316,583 of 320,895 sessions supported encoding
99.93% Decoder Support
269,763 of 269,942 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,895 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.23% 143,119 / 144,225 99.86% 19,539 / 19,566 — 96.25% 61,720 / 64,123 97.37% 7,613 / 7,819
SafariSafari
 — 99.93% 8,693 / 8,699 99.98% 31,086 / 31,091 — —
EdgeEdge
 99.82% 30,692 / 30,747 100.0% 390 / 390 — 98.45% 950 / 965 98.55% 68 / 69
FirefoxFirefox
 95.87% 9,297 / 9,698 100.0% 1,363 / 1,363 — 0.0% 0 / 39 98.69% 1,280 / 1,297

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,942 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,750 / 121,785 99.89% 15,973 / 15,991 — 99.98% 54,161 / 54,172 99.27% 6,545 / 6,593
SafariSafari
 — 99.93% 7,275 / 7,280 99.98% 25,457 / 25,461 — —
EdgeEdge
 100.0% 26,831 / 26,832 100.0% 340 / 340 — 100.0% 901 / 901 98.36% 60 / 61
FirefoxFirefox
 99.99% 7,926 / 7,927 100.0% 1,106 / 1,106 — 0.0% 0 / 30 99.07% 1,064 / 1,074