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Codec: avc1.420c29

87.31% Encoder Support
1,877,052 of 2,149,894 sessions supported encoding
99.8% Decoder Support
2,094,583 of 2,098,728 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.1
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,894 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 867,270 / 867,912 99.82% 100,877 / 101,054 — 99.5% 645,562 / 648,813 98.06% 43,125 / 43,976
SafariSafari
 — 1.53% 744 / 48,536 1.83% 4,003 / 218,830 — —
EdgeEdge
 99.99% 143,844 / 143,855 100.0% 1,451 / 1,451 — 99.81% 4,155 / 4,163 99.11% 669 / 675
FirefoxFirefox
 95.94% 51,475 / 53,655 99.96% 7,397 / 7,400 — 0.85% 1 / 118 98.78% 6,016 / 6,090

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,728 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,320 / 845,528 99.82% 97,183 / 97,358 — 99.64% 636,506 / 638,822 98.37% 42,042 / 42,739
SafariSafari
 — 99.84% 47,031 / 47,107 99.98% 213,112 / 213,158 — —
EdgeEdge
 99.99% 139,871 / 139,882 100.0% 1,412 / 1,412 — 100.0% 4,077 / 4,077 99.11% 665 / 671
FirefoxFirefox
 99.96% 51,841 / 51,863 99.94% 7,181 / 7,185 — 0.96% 1 / 104 98.52% 5,775 / 5,862