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Codec: avc1.640c15

15.53% Encoder Support
333,659 of 2,148,099 sessions supported encoding
99.8% Decoder Support
2,092,727 of 2,096,818 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,099 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 87 / 867,584 0.12% 121 / 100,406 — 0.02% 122 / 649,626 0.34% 149 / 43,640
SafariSafari
 — 99.75% 47,924 / 48,046 99.97% 217,621 / 217,689 — —
EdgeEdge
 0.0% 5 / 143,798 0.07% 1 / 1,510 — 0.0% 0 / 4,199 0.28% 2 / 706
FirefoxFirefox
 95.92% 51,505 / 53,697 99.93% 7,543 / 7,548 — 0.0% 0 / 128 97.9% 5,974 / 6,102

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,818 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,847 / 845,044 99.8% 96,510 / 96,708 — 99.65% 637,440 / 639,678 98.41% 41,779 / 42,452
SafariSafari
 — 99.83% 46,552 / 46,629 99.98% 212,037 / 212,078 — —
EdgeEdge
 99.99% 139,794 / 139,802 100.0% 1,472 / 1,472 — 100.0% 4,121 / 4,121 99.0% 692 / 699
FirefoxFirefox
 99.95% 51,824 / 51,849 99.97% 7,306 / 7,308 — 0.83% 1 / 120 98.11% 5,751 / 5,862