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Codec: avc1.42140b

3.37% Encoder Support
72,514 of 2,149,579 sessions supported encoding
99.81% Decoder Support
2,094,387 of 2,098,452 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,579 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 216 / 867,404 0.16% 163 / 101,005 — 0.3% 1,921 / 649,581 0.94% 412 / 43,969
SafariSafari
 — 1.52% 736 / 48,329 1.85% 4,034 / 218,526 — —
EdgeEdge
 0.02% 32 / 143,689 0.0% 0 / 1,443 — 0.0% 0 / 4,270 0.16% 1 / 619
FirefoxFirefox
 95.89% 51,488 / 53,694 99.88% 7,502 / 7,511 — 0.0% 0 / 109 98.07% 5,848 / 5,963

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,452 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,648 / 844,850 99.79% 97,161 / 97,365 — 99.66% 637,428 / 639,632 98.34% 42,041 / 42,750
SafariSafari
 — 99.86% 46,874 / 46,941 99.98% 212,901 / 212,948 — —
EdgeEdge
 99.99% 139,706 / 139,716 100.0% 1,394 / 1,394 — 100.0% 4,186 / 4,186 99.35% 612 / 616
FirefoxFirefox
 99.97% 51,852 / 51,869 99.97% 7,260 / 7,262 — 0.0% 0 / 101 98.63% 5,669 / 5,748