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Codec: avc1.64140a

3.97% Encoder Support
12,728 of 320,862 sessions supported encoding
99.94% Decoder Support
269,681 of 269,837 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,862 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 15 / 144,115 0.16% 31 / 19,809 — 0.02% 13 / 63,678 0.31% 24 / 7,791
SafariSafari
 — 2.2% 188 / 8,560 1.42% 443 / 31,291 — —
EdgeEdge
 0.01% 2 / 30,976 0.0% 0 / 373 — 0.0% 0 / 1,005 0.0% 0 / 76
FirefoxFirefox
 96.21% 9,376 / 9,745 100.0% 1,309 / 1,309 — 0.0% 0 / 32 98.71% 1,304 / 1,321

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,837 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,611 / 121,648 99.94% 16,093 / 16,102 — 99.98% 53,798 / 53,809 99.26% 6,540 / 6,589
SafariSafari
 — 99.92% 7,211 / 7,217 99.98% 25,691 / 25,696 — —
EdgeEdge
 100.0% 26,907 / 26,908 100.0% 336 / 336 — 100.0% 923 / 923 100.0% 68 / 68
FirefoxFirefox
 99.99% 7,972 / 7,973 100.0% 1,089 / 1,089 — 0.0% 0 / 21 99.35% 1,072 / 1,079