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Codec: avc1.4d140b

3.92% Encoder Support
12,559 of 320,526 sessions supported encoding
99.93% Decoder Support
269,193 of 269,377 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 320,526 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 14 / 144,309 0.16% 31 / 19,468 — 0.02% 11 / 63,472 0.36% 28 / 7,847
SafariSafari
 — 1.92% 167 / 8,694 1.39% 434 / 31,211 — —
EdgeEdge
 0.0% 0 / 31,011 0.0% 0 / 368 — 0.0% 0 / 955 0.0% 0 / 59
FirefoxFirefox
 95.85% 9,252 / 9,653 100.0% 1,331 / 1,331 — 0.0% 0 / 37 97.76% 1,267 / 1,296

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,377 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,658 / 121,688 99.92% 15,747 / 15,760 — 99.98% 53,551 / 53,561 98.88% 6,606 / 6,681
SafariSafari
 — 99.96% 7,263 / 7,266 99.99% 25,670 / 25,673 — —
EdgeEdge
 100.0% 26,971 / 26,972 100.0% 329 / 329 — 100.0% 874 / 874 100.0% 54 / 54
FirefoxFirefox
 100.0% 7,904 / 7,904 100.0% 1,120 / 1,120 — 0.0% 0 / 29 99.62% 1,061 / 1,065