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Codec: avc1.4d140d

3.26% Encoder Support
70,036 of 2,148,110 sessions supported encoding
99.8% Decoder Support
2,093,038 of 2,097,200 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,110 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 81 / 867,569 0.11% 114 / 100,492 — 0.03% 167 / 650,303 0.39% 172 / 43,635
SafariSafari
 — 1.44% 691 / 48,110 1.84% 4,008 / 217,515 — —
EdgeEdge
 0.0% 5 / 143,601 0.0% 0 / 1,430 — 0.0% 0 / 4,126 0.0% 0 / 662
FirefoxFirefox
 95.87% 51,448 / 53,663 99.88% 7,398 / 7,407 — 0.0% 0 / 114 97.97% 5,886 / 6,008

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,200 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 844,992 / 845,208 99.79% 96,599 / 96,803 — 99.65% 638,197 / 640,468 98.31% 41,731 / 42,449
SafariSafari
 — 99.84% 46,643 / 46,720 99.98% 211,885 / 211,925 — —
EdgeEdge
 99.99% 139,622 / 139,633 100.0% 1,381 / 1,381 — 100.0% 4,057 / 4,057 98.92% 643 / 650
FirefoxFirefox
 99.97% 51,817 / 51,833 99.96% 7,149 / 7,152 — 0.0% 0 / 101 98.44% 5,690 / 5,780