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Codec: avc1.4d1433

84.74% Encoder Support
53,398 of 63,017 sessions supported encoding
99.94% Decoder Support
11,874 of 11,881 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,017 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.19% 27,404 / 27,627 99.91% 4,378 / 4,382 97.21% 12,082 / 12,429 97.87% 1,471 / 1,503
SafariSafari
2.09% 35 / 1,673 1.46% 101 / 6,909
EdgeEdge
99.88% 5,067 / 5,073 98.25% 56 / 57 98.02% 99 / 101 100.0% 10 / 10
FirefoxFirefox
95.45% 2,097 / 2,197 100.0% 258 / 258 99.01% 300 / 303

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,881 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.98% 5,208 / 5,209 99.86% 689 / 690 100.0% 2,310 / 2,310 99.18% 364 / 367
SafariSafari
100.0% 283 / 283 100.0% 1,361 / 1,361
EdgeEdge
100.0% 1,033 / 1,033 100.0% 10 / 10 100.0% 28 / 28
FirefoxFirefox
100.0% 417 / 417 100.0% 39 / 39 100.0% 58 / 58