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Codec: avc1.640c20

98.69% Encoder Support
316,154 of 320,365 sessions supported encoding
99.93% Decoder Support
269,027 of 269,215 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 320,365 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 142,932 / 143,987 99.87% 19,701 / 19,727 — 96.32% 61,472 / 63,822 97.46% 7,473 / 7,668
SafariSafari
 — 99.89% 8,553 / 8,562 99.99% 30,938 / 30,942 — —
EdgeEdge
 99.81% 30,962 / 31,021 100.0% 356 / 356 — 98.19% 975 / 993 98.18% 54 / 55
FirefoxFirefox
 95.88% 9,325 / 9,726 100.0% 1,334 / 1,334 — 0.0% 0 / 41 98.5% 1,247 / 1,266

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,215 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,446 / 121,483 99.92% 16,024 / 16,037 — 99.99% 53,768 / 53,774 99.03% 6,411 / 6,474
SafariSafari
 — 99.89% 7,184 / 7,192 99.98% 25,415 / 25,419 — —
EdgeEdge
 99.99% 27,033 / 27,035 100.0% 311 / 311 — 100.0% 917 / 917 100.0% 52 / 52
FirefoxFirefox
 100.0% 7,913 / 7,913 100.0% 1,107 / 1,107 — 0.0% 0 / 28 99.04% 1,034 / 1,044