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Codec: avc1.640028

98.68% Encoder Support
316,491 of 320,736 sessions supported encoding
99.93% Decoder Support
269,438 of 269,622 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 320,736 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,681 / 144,721 99.85% 19,773 / 19,803 — 96.22% 60,982 / 63,378 97.14% 7,614 / 7,838
SafariSafari
 — 99.94% 8,452 / 8,457 99.99% 31,127 / 31,131 — —
EdgeEdge
 99.79% 30,801 / 30,867 100.0% 366 / 366 — 98.05% 953 / 972 97.14% 68 / 70
FirefoxFirefox
 96.02% 9,324 / 9,710 100.0% 1,294 / 1,294 — 0.0% 0 / 32 98.99% 1,268 / 1,281

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,622 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 122,057 / 122,090 99.88% 16,084 / 16,104 — 99.98% 53,488 / 53,498 98.97% 6,564 / 6,632
SafariSafari
 — 99.96% 7,081 / 7,084 99.98% 25,490 / 25,494 — —
EdgeEdge
 100.0% 26,996 / 26,996 100.0% 326 / 326 — 100.0% 892 / 892 98.41% 62 / 63
FirefoxFirefox
 100.0% 7,936 / 7,936 100.0% 1,052 / 1,052 — 0.0% 0 / 23 99.22% 1,024 / 1,032