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Codec: avc1.42003d

87.22% Encoder Support
1,873,150 of 2,147,640 sessions supported encoding
87.42% Decoder Support
1,832,865 of 2,096,694 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,147,640 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.91% 866,209 / 867,027 99.65% 100,070 / 100,424 — 99.24% 644,759 / 649,689 97.3% 42,549 / 43,730
SafariSafari
 — 1.49% 717 / 48,121 1.87% 4,087 / 218,456 — —
EdgeEdge
 99.97% 143,465 / 143,501 99.93% 1,488 / 1,489 — 99.91% 4,239 / 4,243 98.43% 625 / 635
FirefoxFirefox
 96.03% 51,265 / 53,384 99.96% 7,451 / 7,454 — 0.0% 0 / 101 98.6% 5,856 / 5,939

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,694 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 844,025 / 844,404 99.64% 96,486 / 96,833 — 99.36% 635,824 / 639,897 97.41% 41,388 / 42,487
SafariSafari
 — 1.56% 730 / 46,745 1.88% 4,008 / 212,923 — —
EdgeEdge
 99.97% 139,476 / 139,512 100.0% 1,446 / 1,446 — 100.0% 4,171 / 4,171 98.72% 618 / 626
FirefoxFirefox
 99.95% 51,544 / 51,571 99.82% 7,197 / 7,210 — 0.0% 0 / 91 98.02% 5,606 / 5,719