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Codec: avc1.64003c

86.14% Encoder Support
1,850,823 of 2,148,552 sessions supported encoding
87.42% Decoder Support
1,833,647 of 2,097,400 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,552 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.36% 861,898 / 867,407 99.65% 100,439 / 100,795 — 96.51% 626,648 / 649,291 96.12% 41,952 / 43,644
SafariSafari
 — 1.57% 756 / 48,048 1.85% 4,053 / 218,574 — —
EdgeEdge
 99.85% 143,769 / 143,984 100.0% 1,472 / 1,472 — 98.73% 4,200 / 4,254 99.17% 717 / 723
FirefoxFirefox
 95.91% 51,154 / 53,338 100.0% 7,399 / 7,399 — 0.95% 1 / 105 98.93% 6,007 / 6,072

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,400 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 844,453 / 844,843 99.64% 96,730 / 97,078 — 99.37% 635,308 / 639,351 97.41% 41,358 / 42,456
SafariSafari
 — 1.61% 750 / 46,610 1.86% 3,953 / 212,975 — —
EdgeEdge
 99.97% 140,001 / 140,042 100.0% 1,435 / 1,435 — 100.0% 4,174 / 4,174 99.16% 712 / 718
FirefoxFirefox
 99.96% 51,536 / 51,559 99.89% 7,169 / 7,177 — 1.05% 1 / 95 98.17% 5,727 / 5,834