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Codec: avc1.420820

87.32% Encoder Support
1,876,818 of 2,149,411 sessions supported encoding
99.81% Decoder Support
2,094,048 of 2,098,096 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,411 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,341 / 867,923 99.85% 100,591 / 100,745 — 99.52% 645,781 / 648,922 98.07% 42,854 / 43,699
SafariSafari
 — 1.48% 718 / 48,369 1.84% 4,022 / 218,822 — —
EdgeEdge
 100.0% 143,431 / 143,438 100.0% 1,481 / 1,481 — 99.86% 4,294 / 4,300 98.71% 689 / 698
FirefoxFirefox
 95.93% 51,733 / 53,930 99.97% 7,413 / 7,415 — 0.0% 0 / 116 98.7% 6,013 / 6,092

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,096 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,177 / 845,379 99.84% 96,859 / 97,016 — 99.65% 636,623 / 638,848 98.33% 41,765 / 42,473
SafariSafari
 — 99.84% 46,948 / 47,025 99.98% 213,166 / 213,208 — —
EdgeEdge
 99.99% 139,466 / 139,473 100.0% 1,432 / 1,432 — 100.0% 4,228 / 4,228 98.99% 685 / 692
FirefoxFirefox
 99.97% 52,124 / 52,141 99.96% 7,186 / 7,189 — 0.0% 0 / 104 98.51% 5,770 / 5,857