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Codec: avc1.640428

86.26% Encoder Support
276,808 of 320,892 sessions supported encoding
99.94% Decoder Support
269,396 of 269,571 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,892 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.25% 143,223 / 144,299 99.86% 19,731 / 19,759 — 96.31% 61,492 / 63,849 97.28% 7,604 / 7,817
SafariSafari
 — 1.84% 155 / 8,418 1.35% 422 / 31,304 — —
EdgeEdge
 99.76% 30,720 / 30,795 100.0% 366 / 366 — 97.79% 930 / 951 100.0% 51 / 51
FirefoxFirefox
 96.22% 9,402 / 9,771 100.0% 1,349 / 1,349 — 0.0% 0 / 24 98.45% 1,267 / 1,287

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,571 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,609 / 121,640 99.87% 16,036 / 16,057 — 99.98% 53,860 / 53,870 99.03% 6,552 / 6,616
SafariSafari
 — 99.97% 7,052 / 7,054 99.99% 25,713 / 25,716 — —
EdgeEdge
 100.0% 26,808 / 26,808 100.0% 329 / 329 — 100.0% 878 / 878 100.0% 47 / 47
FirefoxFirefox
 99.99% 8,019 / 8,020 100.0% 1,091 / 1,091 — 0.0% 0 / 16 98.84% 1,021 / 1,033