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Codec: avc1.4d0828

86.5% Encoder Support
277,568 of 320,872 sessions supported encoding
99.93% Decoder Support
269,485 of 269,667 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,872 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.3% 143,337 / 144,351 99.9% 19,587 / 19,606 — 97.5% 62,107 / 63,701 97.95% 7,580 / 7,739
SafariSafari
 — 1.92% 166 / 8,666 1.46% 455 / 31,234 — —
EdgeEdge
 99.82% 30,987 / 31,042 100.0% 365 / 365 — 98.58% 974 / 988 98.36% 60 / 61
FirefoxFirefox
 96.06% 9,381 / 9,766 100.0% 1,282 / 1,282 — 0.0% 0 / 28 98.26% 1,185 / 1,206

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,667 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,786 / 121,825 99.94% 15,925 / 15,935 — 99.98% 53,694 / 53,704 98.98% 6,477 / 6,544
SafariSafari
 — 99.93% 7,260 / 7,265 99.98% 25,571 / 25,575 — —
EdgeEdge
 100.0% 27,109 / 27,109 100.0% 329 / 329 — 100.0% 904 / 904 100.0% 55 / 55
FirefoxFirefox
 99.99% 7,953 / 7,954 100.0% 1,041 / 1,041 — 0.0% 0 / 19 99.11% 998 / 1,007