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Codec: avc1.640833

86.26% Encoder Support
276,823 of 320,917 sessions supported encoding
99.94% Decoder Support
269,499 of 269,666 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 5.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,917 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,312 / 144,350 99.89% 20,049 / 20,072 — 96.2% 61,258 / 63,675 97.03% 7,509 / 7,739
SafariSafari
 — 1.98% 171 / 8,617 1.47% 459 / 31,196 — —
EdgeEdge
 99.78% 30,785 / 30,852 99.73% 363 / 364 — 98.3% 923 / 939 97.96% 48 / 49
FirefoxFirefox
 95.97% 9,257 / 9,646 100.0% 1,363 / 1,363 — 0.0% 0 / 33 98.72% 1,237 / 1,253

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,666 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,729 / 121,760 99.88% 16,317 / 16,336 — 99.99% 53,606 / 53,609 99.1% 6,474 / 6,533
SafariSafari
 — 99.92% 7,229 / 7,235 99.99% 25,585 / 25,588 — —
EdgeEdge
 100.0% 26,989 / 26,990 100.0% 329 / 329 — 100.0% 860 / 860 100.0% 42 / 42
FirefoxFirefox
 100.0% 7,877 / 7,877 100.0% 1,115 / 1,115 — 0.0% 0 / 25 99.31% 1,008 / 1,015