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Codec: avc1.64140c

3.96% Encoder Support
12,709 of 320,631 sessions supported encoding
99.93% Decoder Support
269,040 of 269,218 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,631 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 17 / 144,188 0.13% 26 / 19,748 — 0.02% 13 / 63,564 0.31% 24 / 7,809
SafariSafari
 — 1.94% 165 / 8,512 1.39% 433 / 31,249 — —
EdgeEdge
 0.0% 1 / 30,933 0.0% 0 / 372 — 0.0% 0 / 986 0.0% 0 / 63
FirefoxFirefox
 96.09% 9,477 / 9,863 100.0% 1,352 / 1,352 — 0.0% 0 / 36 98.42% 1,185 / 1,204

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,218 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,383 / 121,421 99.89% 16,103 / 16,121 — 99.99% 53,661 / 53,669 99.01% 6,576 / 6,642
SafariSafari
 — 99.92% 7,098 / 7,104 100.0% 25,559 / 25,559 — —
EdgeEdge
 100.0% 26,895 / 26,896 100.0% 333 / 333 — 100.0% 900 / 900 98.33% 59 / 60
FirefoxFirefox
 99.99% 8,067 / 8,068 100.0% 1,105 / 1,105 — 0.0% 0 / 25 99.69% 972 / 975