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Codec: avc1.4d0032

98.74% Encoder Support
2,120,398 of 2,147,473 sessions supported encoding
99.8% Decoder Support
2,092,440 of 2,096,550 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 2,147,473 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 861,876 / 867,127 99.76% 100,456 / 100,699 — 97.39% 631,903 / 648,839 96.66% 42,456 / 43,923
SafariSafari
 — 99.72% 47,930 / 48,063 99.98% 218,327 / 218,373 — —
EdgeEdge
 99.85% 143,497 / 143,717 100.0% 1,487 / 1,487 — 99.28% 4,262 / 4,293 99.41% 671 / 675
FirefoxFirefox
 96.13% 51,472 / 53,543 99.96% 7,379 / 7,382 — 2.0% 2 / 100 99.05% 5,713 / 5,768

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,550 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,391 / 844,589 99.8% 96,842 / 97,035 — 99.64% 636,606 / 638,885 98.33% 42,033 / 42,746
SafariSafari
 — 99.81% 46,617 / 46,708 99.98% 212,837 / 212,882 — —
EdgeEdge
 100.0% 139,757 / 139,761 100.0% 1,447 / 1,447 — 100.0% 4,211 / 4,211 99.4% 665 / 669
FirefoxFirefox
 99.97% 51,758 / 51,775 99.92% 7,142 / 7,148 — 2.27% 2 / 88 98.3% 5,441 / 5,535