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Codec: avc1.4d043d

86.47% Encoder Support
276,998 of 320,348 sessions supported encoding
87.75% Decoder Support
236,308 of 269,299 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,348 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 143,044 / 144,071 99.75% 19,672 / 19,722 — 97.5% 62,055 / 63,647 97.54% 7,444 / 7,632
SafariSafari
 — 2.0% 171 / 8,537 1.53% 480 / 31,399 — —
EdgeEdge
 99.84% 30,836 / 30,885 100.0% 352 / 352 — 98.88% 969 / 980 100.0% 62 / 62
FirefoxFirefox
 96.03% 9,275 / 9,658 100.0% 1,291 / 1,291 — 0.0% 0 / 39 99.28% 1,243 / 1,252

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,299 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,550 / 121,598 99.75% 15,987 / 16,027 — 99.85% 53,670 / 53,752 98.21% 6,374 / 6,490
SafariSafari
 — 1.94% 139 / 7,169 1.53% 393 / 25,694 — —
EdgeEdge
 99.98% 26,885 / 26,890 100.0% 307 / 307 — 100.0% 898 / 898 100.0% 57 / 57
FirefoxFirefox
 99.9% 7,898 / 7,906 100.0% 1,068 / 1,068 — 0.0% 0 / 28 99.31% 1,010 / 1,017