← Back to Codec Support Table

Codec: avc1.42140b

4.01% Encoder Support
12,869 of 320,681 sessions supported encoding
99.92% Decoder Support
269,351 of 269,555 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,681 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 39 / 143,934 0.18% 35 / 19,718 — 0.15% 95 / 63,652 0.88% 68 / 7,727
SafariSafari
 — 1.89% 164 / 8,666 1.59% 497 / 31,351 — —
EdgeEdge
 0.03% 10 / 31,164 0.0% 0 / 379 — 0.0% 0 / 940 0.0% 0 / 47
FirefoxFirefox
 96.16% 9,275 / 9,645 100.0% 1,366 / 1,366 — 0.0% 0 / 36 98.69% 1,281 / 1,298

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,555 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,336 / 121,380 99.86% 16,056 / 16,078 — 99.99% 53,696 / 53,703 98.91% 6,437 / 6,508
SafariSafari
 — 99.95% 7,275 / 7,279 99.98% 25,767 / 25,773 — —
EdgeEdge
 100.0% 27,190 / 27,191 100.0% 330 / 330 — 100.0% 856 / 856 100.0% 44 / 44
FirefoxFirefox
 100.0% 7,820 / 7,820 100.0% 1,117 / 1,117 — 0.0% 0 / 28 99.26% 1,075 / 1,083