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Codec: avc1.64043d

84.2% Encoder Support
53,271 of 63,265 sessions supported encoding
85.57% Decoder Support
10,320 of 12,061 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 63,265 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.14% 27,626 / 27,866 99.79% 4,336 / 4,345 — 95.94% 11,839 / 12,340 97.15% 1,535 / 1,580
SafariSafari
 — 2.33% 39 / 1,676 1.54% 109 / 7,063 — —
EdgeEdge
 99.8% 4,977 / 4,987 100.0% 47 / 47 — 99.09% 109 / 110 100.0% 14 / 14
FirefoxFirefox
 94.96% 2,035 / 2,143 100.0% 259 / 259 — 0.0% 0 / 13 99.34% 300 / 302

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,061 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,308 / 5,309 99.71% 693 / 695 — 99.73% 2,256 / 2,262 98.53% 401 / 407
SafariSafari
 — 4.44% 12 / 270 1.56% 22 / 1,410 — —
EdgeEdge
 100.0% 1,051 / 1,051 — — 100.0% 36 / 36 —
FirefoxFirefox
 100.0% 418 / 418 100.0% 46 / 46 — — 100.0% 59 / 59