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Codec: avc1.640c34

98.71% Encoder Support
316,819 of 320,955 sessions supported encoding
99.93% Decoder Support
269,445 of 269,639 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,955 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 143,324 / 144,389 99.88% 19,693 / 19,717 — 96.37% 61,328 / 63,635 97.34% 7,526 / 7,732
SafariSafari
 — 99.89% 8,486 / 8,495 99.99% 31,558 / 31,561 — —
EdgeEdge
 99.81% 30,871 / 30,930 100.0% 396 / 396 — 97.65% 916 / 938 98.57% 69 / 70
FirefoxFirefox
 96.4% 9,348 / 9,697 100.0% 1,282 / 1,282 — 0.0% 0 / 33 98.43% 1,253 / 1,273

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,639 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,821 / 121,858 99.89% 16,030 / 16,048 — 99.98% 53,594 / 53,605 98.98% 6,423 / 6,489
SafariSafari
 — 99.87% 7,096 / 7,105 99.99% 25,739 / 25,742 — —
EdgeEdge
 100.0% 27,022 / 27,023 100.0% 348 / 348 — 100.0% 865 / 865 98.41% 62 / 63
FirefoxFirefox
 100.0% 7,975 / 7,975 100.0% 1,049 / 1,049 — 0.0% 0 / 24 99.13% 1,028 / 1,037