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Codec: avc1.4d1428

86.43% Encoder Support
1,858,422 of 2,150,108 sessions supported encoding
99.81% Decoder Support
2,095,078 of 2,099,164 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,150,108 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 862,558 / 867,759 99.75% 100,637 / 100,893 — 97.37% 632,703 / 649,773 96.62% 42,252 / 43,728
SafariSafari
 — 1.5% 723 / 48,078 1.87% 4,087 / 218,755 — —
EdgeEdge
 99.86% 143,639 / 143,841 100.0% 1,431 / 1,431 — 99.23% 4,233 / 4,266 99.39% 648 / 652
FirefoxFirefox
 96.06% 51,734 / 53,854 99.96% 7,444 / 7,447 — 0.0% 0 / 102 98.63% 5,987 / 6,070

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,164 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,250 / 845,438 99.79% 97,030 / 97,230 — 99.65% 637,601 / 639,861 98.32% 41,795 / 42,511
SafariSafari
 — 99.85% 46,599 / 46,669 99.98% 213,085 / 213,122 — —
EdgeEdge
 99.99% 139,863 / 139,874 100.0% 1,393 / 1,393 — 100.0% 4,198 / 4,198 99.69% 647 / 649
FirefoxFirefox
 99.96% 52,019 / 52,042 99.94% 7,197 / 7,201 — 0.0% 0 / 97 98.56% 5,752 / 5,836