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Codec: avc1.42102a

99.63% Encoder Support
2,139,511 of 2,147,452 sessions supported encoding
99.8% Decoder Support
2,092,136 of 2,096,330 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,147,452 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,326 / 866,948 99.81% 100,349 / 100,541 — 99.5% 646,526 / 649,779 98.04% 43,092 / 43,954
SafariSafari
 — 99.78% 47,765 / 47,871 99.98% 217,916 / 217,965 — —
EdgeEdge
 99.99% 143,430 / 143,438 100.0% 1,463 / 1,463 — 99.83% 4,144 / 4,151 99.17% 713 / 719
FirefoxFirefox
 95.9% 51,528 / 53,729 99.99% 7,381 / 7,382 — 0.83% 1 / 120 98.64% 5,811 / 5,891

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,330 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 844,297 / 844,510 99.8% 96,669 / 96,863 — 99.64% 637,524 / 639,796 98.29% 42,032 / 42,764
SafariSafari
 — 99.84% 46,407 / 46,482 99.98% 212,217 / 212,266 — —
EdgeEdge
 99.99% 139,447 / 139,455 100.0% 1,415 / 1,415 — 100.0% 4,078 / 4,078 99.44% 711 / 715
FirefoxFirefox
 99.97% 51,938 / 51,953 99.94% 7,149 / 7,153 — 0.92% 1 / 109 98.36% 5,562 / 5,655