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Codec: av01.1.21H.08

79.63% Encoder Support
255,273 of 320,591 sessions supported encoding
84.07% Decoder Support
226,679 of 269,633 sessions supported decoding

Codec Specifications

Codec Family AV1
Profile Profile 1 (8-bit)
Level Level 21
Maximum Resolution Unknown
Maximum Bitrate Unknown

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,591 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.24% 143,105 / 144,204 98.39% 19,421 / 19,738 — 84.29% 53,912 / 63,957 87.43% 6,626 / 7,579
SafariSafari
 — 0.13% 11 / 8,679 0.03% 10 / 31,127 — —
EdgeEdge
 99.56% 30,842 / 30,979 100.0% 370 / 370 — 87.67% 825 / 941 96.83% 61 / 63
FirefoxFirefox
 0.01% 1 / 9,520 0.07% 1 / 1,377 — 0.0% 0 / 34 1.09% 13 / 1,195

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,633 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 121,889 / 121,892 100.0% 16,072 / 16,072 — 100.0% 53,972 / 53,974 99.44% 6,389 / 6,425
SafariSafari
 — 0.12% 9 / 7,254 0.04% 11 / 25,453 — —
EdgeEdge
 100.0% 26,987 / 26,987 100.0% 330 / 330 — 99.65% 866 / 869 100.0% 59 / 59
FirefoxFirefox
 0.04% 3 / 7,775 0.0% 0 / 1,122 — 0.0% 0 / 27 1.42% 14 / 986