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Codec: avc1.4d100b

16.44% Encoder Support
52,751 of 320,821 sessions supported encoding
99.93% Decoder Support
269,691 of 269,867 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,821 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 19 / 143,725 0.13% 26 / 19,681 — 0.02% 13 / 64,115 0.27% 21 / 7,719
SafariSafari
 — 99.87% 8,776 / 8,787 99.97% 31,269 / 31,279 — —
EdgeEdge
 0.0% 0 / 30,891 0.0% 0 / 406 — 0.0% 0 / 1,007 0.0% 0 / 60
FirefoxFirefox
 96.09% 9,266 / 9,643 100.0% 1,379 / 1,379 — 0.0% 0 / 23 97.84% 1,268 / 1,296

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,867 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,342 / 121,380 99.88% 16,041 / 16,061 — 99.99% 54,032 / 54,039 99.09% 6,500 / 6,560
SafariSafari
 — 99.89% 7,365 / 7,373 99.98% 25,723 / 25,728 — —
EdgeEdge
 100.0% 26,889 / 26,889 100.0% 360 / 360 — 100.0% 941 / 941 100.0% 56 / 56
FirefoxFirefox
 99.99% 7,884 / 7,885 100.0% 1,118 / 1,118 — 0.0% 0 / 15 98.96% 1,043 / 1,054