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Codec: avc1.64103d

86.22% Encoder Support
277,016 of 321,297 sessions supported encoding
87.73% Decoder Support
237,018 of 270,153 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 321,297 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 143,248 / 144,320 99.79% 19,702 / 19,743 — 96.36% 61,700 / 64,033 96.88% 7,539 / 7,782
SafariSafari
 — 1.82% 156 / 8,591 1.39% 437 / 31,390 — —
EdgeEdge
 99.77% 30,838 / 30,908 100.0% 352 / 352 — 97.63% 946 / 969 98.36% 60 / 61
FirefoxFirefox
 96.02% 9,305 / 9,691 100.0% 1,372 / 1,372 — 0.0% 0 / 37 98.92% 1,278 / 1,292

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,153 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 121,839 / 121,910 99.8% 16,098 / 16,130 — 99.85% 53,936 / 54,016 98.32% 6,437 / 6,547
SafariSafari
 — 1.77% 127 / 7,188 1.32% 340 / 25,781 — —
EdgeEdge
 99.97% 26,861 / 26,870 100.0% 309 / 309 — 100.0% 895 / 895 98.11% 52 / 53
FirefoxFirefox
 99.96% 7,927 / 7,930 100.0% 1,113 / 1,113 — 0.0% 0 / 27 99.32% 1,028 / 1,035