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Codec: avc1.4d001f

98.98% Encoder Support
317,606 of 320,892 sessions supported encoding
99.93% Decoder Support
269,360 of 269,539 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 320,892 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 143,501 / 144,513 99.88% 19,582 / 19,606 — 97.54% 62,397 / 63,972 97.93% 7,601 / 7,762
SafariSafari
 — 99.94% 8,614 / 8,619 99.99% 31,182 / 31,186 — —
EdgeEdge
 99.81% 30,732 / 30,790 100.0% 349 / 349 — 98.85% 948 / 959 96.43% 54 / 56
FirefoxFirefox
 96.24% 9,361 / 9,727 100.0% 1,267 / 1,267 — 0.0% 0 / 25 98.66% 1,248 / 1,265

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,539 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,914 / 121,945 99.89% 15,886 / 15,904 — 99.98% 53,813 / 53,824 98.96% 6,493 / 6,561
SafariSafari
 — 99.93% 7,291 / 7,296 99.99% 25,568 / 25,571 — —
EdgeEdge
 100.0% 26,766 / 26,766 100.0% 305 / 305 — 100.0% 879 / 879 97.92% 47 / 48
FirefoxFirefox
 100.0% 7,963 / 7,963 100.0% 1,038 / 1,038 — 0.0% 0 / 17 99.02% 1,015 / 1,025