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Codec: avc1.42141f

87.35% Encoder Support
280,852 of 321,515 sessions supported encoding
99.92% Decoder Support
269,918 of 270,122 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 3.1
Maximum Resolution HD ready (1024×960)
Maximum Bitrate 14 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,515 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.84% 144,462 / 144,694 99.87% 19,736 / 19,761 — 99.75% 63,546 / 63,706 98.91% 7,807 / 7,893
SafariSafari
 — 1.99% 172 / 8,623 1.52% 471 / 31,044 — —
EdgeEdge
 100.0% 31,087 / 31,088 99.72% 350 / 351 — 99.4% 996 / 1,002 100.0% 64 / 64
FirefoxFirefox
 96.27% 9,453 / 9,819 100.0% 1,267 / 1,267 — 0.0% 0 / 39 99.1% 1,317 / 1,329

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,122 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 122,050 / 122,082 99.84% 16,061 / 16,087 — 99.98% 53,663 / 53,672 99.03% 6,622 / 6,687
SafariSafari
 — 99.86% 7,237 / 7,247 99.99% 25,384 / 25,386 — —
EdgeEdge
 100.0% 27,061 / 27,062 100.0% 304 / 304 — 100.0% 930 / 930 100.0% 57 / 57
FirefoxFirefox
 100.0% 8,009 / 8,009 100.0% 1,038 / 1,038 — 0.0% 0 / 30 99.27% 1,082 / 1,090