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Codec: avc1.42000b

16.39% Encoder Support
52,485 of 320,237 sessions supported encoding
99.93% Decoder Support
268,933 of 269,119 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 320,237 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 33 / 144,259 0.14% 28 / 19,690 — 0.12% 74 / 63,680 0.71% 54 / 7,613
SafariSafari
 — 99.95% 8,557 / 8,561 99.98% 31,142 / 31,149 — —
EdgeEdge
 0.03% 8 / 30,752 0.0% 0 / 369 — 0.0% 0 / 985 0.0% 0 / 68
FirefoxFirefox
 96.1% 9,306 / 9,684 99.92% 1,294 / 1,295 — 0.0% 0 / 37 98.04% 1,250 / 1,275

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,119 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,665 / 121,705 99.89% 15,985 / 16,002 — 99.98% 53,673 / 53,684 99.1% 6,368 / 6,426
SafariSafari
 — 99.96% 7,190 / 7,193 99.99% 25,608 / 25,610 — —
EdgeEdge
 100.0% 26,790 / 26,791 100.0% 330 / 330 — 100.0% 907 / 907 98.33% 59 / 60
FirefoxFirefox
 100.0% 7,862 / 7,862 100.0% 1,060 / 1,060 — 0.0% 0 / 31 99.34% 1,052 / 1,059