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Codec: avc1.64003c

86.26% Encoder Support
276,414 of 320,432 sessions supported encoding
87.79% Decoder Support
236,391 of 269,280 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,432 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.24% 142,986 / 144,074 99.74% 19,765 / 19,816 — 96.29% 61,193 / 63,552 97.22% 7,305 / 7,514
SafariSafari
 — 2.16% 184 / 8,524 1.49% 466 / 31,275 — —
EdgeEdge
 99.8% 31,035 / 31,096 100.0% 375 / 375 — 98.37% 963 / 979 98.59% 70 / 71
FirefoxFirefox
 96.35% 9,380 / 9,735 100.0% 1,317 / 1,317 — 0.0% 0 / 35 98.62% 1,290 / 1,308

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,280 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 121,435 / 121,510 99.73% 16,055 / 16,099 — 99.86% 53,538 / 53,612 98.53% 6,233 / 6,326
SafariSafari
 — 2.1% 149 / 7,086 1.43% 366 / 25,676 — —
EdgeEdge
 99.97% 27,147 / 27,154 100.0% 338 / 338 — 100.0% 899 / 899 98.48% 65 / 66
FirefoxFirefox
 99.97% 7,954 / 7,956 100.0% 1,095 / 1,095 — 0.0% 0 / 25 98.69% 1,056 / 1,070