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Codec: avc1.64003c

84.28% Encoder Support
53,151 of 63,062 sessions supported encoding
85.0% Decoder Support
10,146 of 11,937 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 63,062 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.13% 27,608 / 27,851 99.8% 4,408 / 4,417 — 96.2% 11,687 / 12,149 97.36% 1,510 / 1,551
SafariSafari
 — 2.62% 44 / 1,681 1.67% 118 / 7,055 — —
EdgeEdge
 99.82% 4,950 / 4,959 100.0% 45 / 45 — 97.48% 116 / 119 —
FirefoxFirefox
 95.07% 2,065 / 2,172 100.0% 280 / 280 — 0.0% 0 / 11 99.3% 284 / 286

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,937 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 5,285 / 5,288 99.71% 698 / 700 — 99.86% 2,206 / 2,209 98.35% 357 / 363
SafariSafari
 — 3.6% 9 / 250 1.42% 21 / 1,475 — —
EdgeEdge
 100.0% 1,017 / 1,017 — — 100.0% 39 / 39 —
FirefoxFirefox
 100.0% 393 / 393 100.0% 58 / 58 — — 100.0% 48 / 48