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Codec: avc1.64043d

86.21% Encoder Support
276,457 of 320,687 sessions supported encoding
87.77% Decoder Support
236,518 of 269,460 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,687 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.23% 143,045 / 144,150 99.76% 19,651 / 19,698 — 96.29% 61,526 / 63,899 97.0% 7,464 / 7,695
SafariSafari
 — 1.94% 169 / 8,716 1.45% 451 / 31,124 — —
EdgeEdge
 99.83% 30,846 / 30,900 100.0% 330 / 330 — 97.87% 919 / 939 98.55% 68 / 69
FirefoxFirefox
 96.13% 9,296 / 9,670 100.0% 1,299 / 1,299 — 0.0% 0 / 37 98.92% 1,285 / 1,299

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,460 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,526 / 121,591 99.74% 16,007 / 16,048 — 99.86% 53,743 / 53,821 98.47% 6,422 / 6,522
SafariSafari
 — 1.94% 142 / 7,302 1.43% 364 / 25,458 — —
EdgeEdge
 99.99% 26,960 / 26,964 100.0% 289 / 289 — 100.0% 865 / 865 98.36% 60 / 61
FirefoxFirefox
 99.94% 7,940 / 7,945 99.91% 1,085 / 1,086 — 0.0% 0 / 28 99.05% 1,046 / 1,056