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Codec: avc1.420c20

87.32% Encoder Support
1,879,241 of 2,152,138 sessions supported encoding
99.8% Decoder Support
2,096,711 of 2,100,843 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 2,152,138 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,452 / 868,083 99.82% 100,386 / 100,570 — 99.51% 648,626 / 651,814 97.99% 43,018 / 43,902
SafariSafari
 — 1.49% 715 / 47,880 1.87% 4,102 / 219,531 — —
EdgeEdge
 100.0% 143,308 / 143,314 99.86% 1,462 / 1,464 — 99.93% 4,283 / 4,286 98.98% 676 / 683
FirefoxFirefox
 95.97% 51,285 / 53,438 99.97% 7,515 / 7,517 — 0.88% 1 / 114 98.71% 5,915 / 5,992

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,100,843 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,337 / 845,532 99.81% 96,723 / 96,910 — 99.65% 639,654 / 641,903 98.22% 41,941 / 42,702
SafariSafari
 — 99.83% 46,391 / 46,470 99.98% 213,691 / 213,743 — —
EdgeEdge
 100.0% 139,348 / 139,354 100.0% 1,424 / 1,424 — 100.0% 4,207 / 4,207 99.26% 673 / 678
FirefoxFirefox
 99.97% 51,638 / 51,656 99.95% 7,289 / 7,293 — 0.93% 1 / 107 98.66% 5,670 / 5,747