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Codec: avc1.4d0828

84.59% Encoder Support
53,429 of 63,161 sessions supported encoding
99.93% Decoder Support
11,971 of 11,979 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 63,161 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 27,644 / 27,850 99.93% 4,346 / 4,349 — 97.31% 11,922 / 12,252 98.16% 1,546 / 1,575
SafariSafari
 — 2.09% 35 / 1,671 1.55% 109 / 7,017 — —
EdgeEdge
 99.9% 4,969 / 4,974 100.0% 47 / 47 — 98.21% 110 / 112 90.0% 9 / 10
FirefoxFirefox
 94.74% 2,125 / 2,243 100.0% 283 / 283 — 0.0% 0 / 12 98.0% 245 / 250

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,979 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,326 / 5,326 99.85% 677 / 678 — 100.0% 2,255 / 2,255 99.21% 377 / 380
SafariSafari
 — 100.0% 273 / 273 100.0% 1,376 / 1,376 — —
EdgeEdge
 100.0% 1,041 / 1,041 100.0% 11 / 11 — 100.0% 28 / 28 —
FirefoxFirefox
 100.0% 431 / 431 100.0% 42 / 42 — — 100.0% 51 / 51