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Codec: avc1.640432

86.16% Encoder Support
1,853,046 of 2,150,767 sessions supported encoding
99.8% Decoder Support
2,095,546 of 2,099,718 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,150,767 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.38% 863,246 / 868,660 99.74% 100,474 / 100,732 — 96.48% 627,408 / 650,319 96.37% 42,367 / 43,963
SafariSafari
 — 1.49% 718 / 48,036 1.85% 4,039 / 218,606 — —
EdgeEdge
 99.85% 143,296 / 143,510 100.0% 1,506 / 1,506 — 98.87% 4,120 / 4,167 98.87% 697 / 705
FirefoxFirefox
 95.94% 51,481 / 53,661 99.95% 7,463 / 7,467 — 0.96% 1 / 104 98.71% 5,902 / 5,979

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,718 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 846,042 / 846,233 99.78% 96,868 / 97,077 — 99.64% 638,155 / 640,457 98.34% 42,047 / 42,758
SafariSafari
 — 99.84% 46,526 / 46,600 99.98% 212,855 / 212,903 — —
EdgeEdge
 99.99% 139,475 / 139,482 100.0% 1,465 / 1,465 — 100.0% 4,103 / 4,103 99.14% 695 / 701
FirefoxFirefox
 99.97% 51,920 / 51,935 99.93% 7,221 / 7,226 — 1.09% 1 / 92 98.13% 5,623 / 5,730