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Codec: avc1.420416

87.35% Encoder Support
279,681 of 320,191 sessions supported encoding
99.94% Decoder Support
269,270 of 269,439 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 320,191 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.83% 143,770 / 144,021 99.93% 19,680 / 19,694 — 99.75% 63,615 / 63,773 98.93% 7,599 / 7,681
SafariSafari
 — 2.01% 172 / 8,543 1.58% 488 / 30,975 — —
EdgeEdge
 100.0% 30,915 / 30,915 100.0% 338 / 338 — 99.47% 944 / 949 96.88% 62 / 64
FirefoxFirefox
 95.95% 9,361 / 9,756 100.0% 1,373 / 1,373 — 0.0% 0 / 34 99.07% 1,273 / 1,285

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,439 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,627 / 121,664 99.91% 15,982 / 15,997 — 99.98% 53,860 / 53,870 99.14% 6,450 / 6,506
SafariSafari
 — 99.9% 7,149 / 7,156 99.98% 25,474 / 25,478 — —
EdgeEdge
 100.0% 26,963 / 26,963 100.0% 309 / 309 — 100.0% 885 / 885 98.28% 57 / 58
FirefoxFirefox
 99.99% 7,952 / 7,953 100.0% 1,143 / 1,143 — 0.0% 0 / 25 99.52% 1,033 / 1,038