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Codec: avc1.4d101f

98.99% Encoder Support
316,984 of 320,234 sessions supported encoding
99.94% Decoder Support
268,954 of 269,121 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 320,234 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.32% 142,620 / 143,592 99.89% 19,585 / 19,607 — 97.58% 62,155 / 63,698 97.99% 7,639 / 7,796
SafariSafari
 — 99.92% 8,602 / 8,609 99.98% 31,485 / 31,491 — —
EdgeEdge
 99.8% 30,741 / 30,802 100.0% 367 / 367 — 99.16% 941 / 949 100.0% 64 / 64
FirefoxFirefox
 95.99% 9,415 / 9,808 100.0% 1,344 / 1,344 — 0.0% 0 / 32 98.91% 1,274 / 1,288

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,121 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,332 / 121,360 99.91% 15,920 / 15,935 — 99.99% 53,700 / 53,706 99.1% 6,494 / 6,553
SafariSafari
 — 99.93% 7,183 / 7,188 99.98% 25,743 / 25,749 — —
EdgeEdge
 100.0% 26,793 / 26,794 100.0% 326 / 326 — 100.0% 865 / 865 100.0% 58 / 58
FirefoxFirefox
 99.99% 7,989 / 7,990 100.0% 1,108 / 1,108 — 0.0% 0 / 24 99.53% 1,061 / 1,066