← Back to Codec Support Table

Codec: avc1.640020

98.68% Encoder Support
316,939 of 321,191 sessions supported encoding
99.94% Decoder Support
269,801 of 269,970 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,191 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 142,769 / 143,816 99.88% 19,827 / 19,851 — 96.19% 61,479 / 63,917 97.52% 7,520 / 7,711
SafariSafari
 — 99.96% 8,549 / 8,552 99.99% 31,464 / 31,468 — —
EdgeEdge
 99.82% 31,112 / 31,168 100.0% 361 / 361 — 98.06% 959 / 978 96.61% 57 / 59
FirefoxFirefox
 96.01% 9,356 / 9,745 100.0% 1,352 / 1,352 — 0.0% 0 / 37 99.03% 1,323 / 1,336

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,970 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,438 / 121,481 99.9% 16,165 / 16,181 — 99.99% 53,807 / 53,812 99.14% 6,478 / 6,534
SafariSafari
 — 99.96% 7,178 / 7,181 99.99% 25,780 / 25,783 — —
EdgeEdge
 100.0% 27,167 / 27,167 100.0% 304 / 304 — 100.0% 902 / 902 96.43% 54 / 56
FirefoxFirefox
 99.99% 7,941 / 7,942 100.0% 1,118 / 1,118 — 0.0% 0 / 23 99.45% 1,087 / 1,093