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Codec: avc1.4d003c

86.43% Encoder Support
1,856,978 of 2,148,642 sessions supported encoding
87.42% Decoder Support
1,833,478 of 2,097,349 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,642 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 862,959 / 868,244 99.69% 99,912 / 100,219 — 97.38% 631,648 / 648,671 96.44% 42,406 / 43,973
SafariSafari
 — 1.56% 748 / 48,060 1.84% 4,022 / 218,496 — —
EdgeEdge
 99.85% 143,257 / 143,472 100.0% 1,525 / 1,525 — 99.21% 4,136 / 4,169 98.91% 638 / 645
FirefoxFirefox
 96.04% 51,784 / 53,917 100.0% 7,574 / 7,574 — 0.0% 0 / 102 98.59% 6,010 / 6,096

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,349 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 845,132 / 845,551 99.69% 96,279 / 96,583 — 99.36% 634,590 / 638,706 97.42% 41,652 / 42,753
SafariSafari
 — 1.62% 757 / 46,703 1.85% 3,949 / 212,929 — —
EdgeEdge
 99.97% 139,355 / 139,394 100.0% 1,486 / 1,486 — 100.0% 4,080 / 4,080 99.37% 630 / 634
FirefoxFirefox
 99.95% 52,130 / 52,156 99.86% 7,340 / 7,350 — 0.0% 0 / 95 97.97% 5,756 / 5,875