← Back to Codec Support Table

Codec: avc1.640433

86.13% Encoder Support
1,852,134 of 2,150,370 sessions supported encoding
99.8% Decoder Support
2,095,169 of 2,099,266 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 2,150,370 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.36% 862,447 / 868,028 99.74% 100,178 / 100,435 — 96.49% 626,294 / 649,110 96.14% 42,112 / 43,805
SafariSafari
 — 1.55% 747 / 48,227 1.85% 4,049 / 218,685 — —
EdgeEdge
 99.85% 144,266 / 144,482 100.0% 1,523 / 1,523 — 98.51% 4,158 / 4,221 98.83% 677 / 685
FirefoxFirefox
 96.06% 51,775 / 53,899 99.96% 7,505 / 7,508 — 1.83% 2 / 109 98.57% 6,050 / 6,138

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,266 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,373 / 845,563 99.79% 96,493 / 96,692 — 99.65% 636,890 / 639,121 98.29% 41,908 / 42,639
SafariSafari
 — 99.85% 46,792 / 46,862 99.98% 213,058 / 213,104 — —
EdgeEdge
 99.99% 140,463 / 140,472 100.0% 1,478 / 1,478 — 100.0% 4,139 / 4,139 99.12% 674 / 680
FirefoxFirefox
 99.97% 52,126 / 52,143 99.95% 7,284 / 7,288 — 1.96% 2 / 102 98.49% 5,819 / 5,908