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Codec: avc1.4d0c33

84.49% Encoder Support
53,142 of 62,894 sessions supported encoding
99.93% Decoder Support
11,819 of 11,827 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 62,894 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.14% 27,308 / 27,545 99.95% 4,315 / 4,317 97.36% 11,847 / 12,168 98.23% 1,557 / 1,585
SafariSafari
2.35% 39 / 1,661 1.84% 130 / 7,076
EdgeEdge
99.78% 5,063 / 5,074 100.0% 41 / 41 100.0% 97 / 97 100.0% 11 / 11
FirefoxFirefox
95.42% 2,148 / 2,251 100.0% 269 / 269 0.0% 0 / 11 99.3% 282 / 284

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,827 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.96% 5,155 / 5,157 100.0% 653 / 653 100.0% 2,269 / 2,269 99.23% 385 / 388
SafariSafari
100.0% 270 / 270 100.0% 1,417 / 1,417
EdgeEdge
100.0% 1,020 / 1,020 100.0% 11 / 11 100.0% 24 / 24
FirefoxFirefox
100.0% 426 / 426 100.0% 43 / 43 100.0% 54 / 54