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Codec: avc1.4d0833

86.49% Encoder Support
277,641 of 321,001 sessions supported encoding
99.94% Decoder Support
270,053 of 270,221 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 321,001 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 142,972 / 144,021 99.87% 19,934 / 19,960 — 97.59% 62,201 / 63,736 97.94% 7,464 / 7,621
SafariSafari
 — 1.74% 150 / 8,608 1.47% 460 / 31,394 — —
EdgeEdge
 99.77% 31,011 / 31,081 100.0% 343 / 343 — 99.15% 930 / 938 100.0% 70 / 70
FirefoxFirefox
 96.34% 9,396 / 9,753 100.0% 1,325 / 1,325 — 0.0% 0 / 33 99.54% 1,291 / 1,297

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,221 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,677 / 121,710 99.91% 16,276 / 16,291 — 99.99% 53,829 / 53,836 99.06% 6,396 / 6,457
SafariSafari
 — 99.88% 7,205 / 7,214 99.99% 25,794 / 25,797 — —
EdgeEdge
 100.0% 27,149 / 27,149 100.0% 309 / 309 — 100.0% 866 / 866 100.0% 61 / 61
FirefoxFirefox
 99.99% 7,963 / 7,964 100.0% 1,098 / 1,098 — 0.0% 0 / 22 99.72% 1,050 / 1,053