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Codec: avc1.420434

87.36% Encoder Support
1,875,554 of 2,146,933 sessions supported encoding
99.8% Decoder Support
2,092,100 of 2,096,206 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,146,933 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.93% 866,879 / 867,488 99.79% 100,103 / 100,309 — 99.5% 646,016 / 649,275 98.08% 43,040 / 43,882
SafariSafari
 — 1.46% 698 / 47,941 1.88% 4,100 / 217,985 — —
EdgeEdge
 99.99% 143,261 / 143,269 100.0% 1,514 / 1,514 — 99.79% 4,220 / 4,229 98.94% 652 / 659
FirefoxFirefox
 95.98% 51,339 / 53,492 99.97% 7,364 / 7,366 — 0.81% 1 / 123 98.73% 5,894 / 5,970

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,206 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,963 / 845,157 99.78% 96,501 / 96,709 — 99.64% 637,191 / 639,466 98.33% 41,885 / 42,597
SafariSafari
 — 99.83% 46,510 / 46,590 99.98% 212,320 / 212,371 — —
EdgeEdge
 99.99% 139,316 / 139,324 100.0% 1,475 / 1,475 — 100.0% 4,138 / 4,138 99.23% 647 / 652
FirefoxFirefox
 99.99% 51,687 / 51,694 99.97% 7,136 / 7,138 — 0.88% 1 / 114 98.59% 5,658 / 5,739