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Codec: avc1.4d0c32

86.58% Encoder Support
277,815 of 320,863 sessions supported encoding
99.94% Decoder Support
269,589 of 269,760 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,863 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 143,279 / 144,288 99.88% 19,776 / 19,799 — 97.63% 62,415 / 63,930 98.14% 7,616 / 7,760
SafariSafari
 — 2.12% 180 / 8,504 1.41% 442 / 31,263 — —
EdgeEdge
 99.75% 30,812 / 30,889 100.0% 383 / 383 — 99.07% 961 / 970 100.0% 58 / 58
FirefoxFirefox
 96.31% 9,228 / 9,582 100.0% 1,309 / 1,309 — 0.0% 0 / 31 98.98% 1,263 / 1,276

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,760 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,661 / 121,699 99.92% 16,173 / 16,186 — 99.99% 53,913 / 53,920 99.14% 6,538 / 6,595
SafariSafari
 — 99.94% 7,143 / 7,147 99.98% 25,542 / 25,546 — —
EdgeEdge
 100.0% 26,996 / 26,997 100.0% 335 / 335 — 100.0% 894 / 894 100.0% 54 / 54
FirefoxFirefox
 99.99% 7,802 / 7,803 100.0% 1,084 / 1,084 — 0.0% 0 / 24 99.81% 1,059 / 1,061