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Codec: avc1.4d141f

86.55% Encoder Support
276,751 of 319,743 sessions supported encoding
99.93% Decoder Support
268,473 of 268,654 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,743 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 142,953 / 143,957 99.83% 19,667 / 19,700 — 97.6% 61,790 / 63,308 97.61% 7,582 / 7,768
SafariSafari
 — 2.02% 173 / 8,560 1.58% 493 / 31,134 — —
EdgeEdge
 99.8% 30,728 / 30,790 99.73% 375 / 376 — 98.74% 941 / 953 100.0% 71 / 71
FirefoxFirefox
 96.1% 9,305 / 9,683 100.0% 1,311 / 1,311 — 0.0% 0 / 32 99.14% 1,267 / 1,278

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,654 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,365 / 121,394 99.89% 15,917 / 15,935 — 99.99% 53,333 / 53,339 98.95% 6,490 / 6,559
SafariSafari
 — 99.85% 7,201 / 7,212 99.98% 25,577 / 25,582 — —
EdgeEdge
 100.0% 26,873 / 26,873 100.0% 331 / 331 — 100.0% 882 / 882 100.0% 67 / 67
FirefoxFirefox
 99.99% 7,916 / 7,917 100.0% 1,056 / 1,056 — 0.0% 0 / 23 99.24% 1,046 / 1,054