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Codec: avc1.420016

99.63% Encoder Support
2,141,764 of 2,149,676 sessions supported encoding
99.8% Decoder Support
2,094,405 of 2,098,534 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,676 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,262 / 867,883 99.82% 100,231 / 100,415 — 99.51% 647,101 / 650,317 98.0% 43,101 / 43,981
SafariSafari
 — 99.71% 48,069 / 48,211 99.98% 217,667 / 217,713 — —
EdgeEdge
 100.0% 144,239 / 144,245 100.0% 1,448 / 1,448 — 99.86% 4,233 / 4,239 98.98% 682 / 689
FirefoxFirefox
 95.9% 51,428 / 53,629 99.92% 7,366 / 7,372 — 0.0% 0 / 106 98.76% 5,880 / 5,954

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,534 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,046 / 845,249 99.81% 96,543 / 96,728 — 99.65% 638,185 / 640,421 98.29% 42,057 / 42,789
SafariSafari
 — 99.78% 46,722 / 46,824 99.98% 212,099 / 212,145 — —
EdgeEdge
 100.0% 140,252 / 140,258 100.0% 1,403 / 1,403 — 100.0% 4,164 / 4,164 99.41% 675 / 679
FirefoxFirefox
 99.97% 51,849 / 51,863 99.9% 7,123 / 7,130 — 0.0% 0 / 98 98.48% 5,625 / 5,712