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Codec: avc1.420014

15.68% Encoder Support
336,578 of 2,147,002 sessions supported encoding
99.8% Decoder Support
2,091,851 of 2,096,012 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 2 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,147,002 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 246 / 867,482 0.16% 165 / 100,326 — 0.3% 1,962 / 648,317 0.88% 383 / 43,696
SafariSafari
 — 99.76% 48,018 / 48,133 99.97% 218,284 / 218,347 — —
EdgeEdge
 0.02% 33 / 143,609 0.0% 0 / 1,488 — 0.0% 0 / 4,294 0.0% 0 / 671
FirefoxFirefox
 95.89% 51,349 / 53,549 99.95% 7,381 / 7,385 — 0.0% 0 / 108 98.02% 5,937 / 6,057

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,012 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,758 / 844,949 99.8% 96,488 / 96,678 — 99.64% 636,173 / 638,485 98.29% 41,779 / 42,505
SafariSafari
 — 99.84% 46,661 / 46,735 99.98% 212,606 / 212,645 — —
EdgeEdge
 100.0% 139,626 / 139,631 100.0% 1,445 / 1,445 — 100.0% 4,219 / 4,219 98.95% 660 / 667
FirefoxFirefox
 99.98% 51,776 / 51,788 99.93% 7,160 / 7,165 — 0.99% 1 / 101 98.49% 5,756 / 5,844