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Codec: avc1.641433

84.49% Encoder Support
53,047 of 62,783 sessions supported encoding
99.94% Decoder Support
11,830 of 11,837 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,783 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.18% 27,453 / 27,680 99.95% 4,282 / 4,284 — 96.43% 11,739 / 12,173 98.1% 1,545 / 1,575
SafariSafari
 — 1.91% 31 / 1,622 1.76% 123 / 6,984 — —
EdgeEdge
 99.86% 5,003 / 5,010 100.0% 52 / 52 — 97.17% 103 / 106 100.0% 10 / 10
FirefoxFirefox
 95.35% 2,114 / 2,217 100.0% 269 / 269 — 0.0% 0 / 13 99.3% 283 / 285

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,837 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,134 / 5,135 100.0% 698 / 698 — 100.0% 2,263 / 2,263 99.17% 358 / 361
SafariSafari
 — 100.0% 251 / 251 100.0% 1,446 / 1,446 — —
EdgeEdge
 100.0% 1,057 / 1,057 — — 100.0% 27 / 27 —
FirefoxFirefox
 100.0% 421 / 421 100.0% 43 / 43 — — 100.0% 51 / 51