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Codec: avc1.420828

87.21% Encoder Support
279,397 of 320,384 sessions supported encoding
99.93% Decoder Support
269,361 of 269,546 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,384 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.82% 143,343 / 143,595 99.92% 19,626 / 19,642 — 99.79% 63,747 / 63,881 98.78% 7,638 / 7,732
SafariSafari
 — 1.99% 173 / 8,705 1.47% 462 / 31,376 — —
EdgeEdge
 100.0% 31,031 / 31,031 100.0% 373 / 373 — 99.7% 982 / 985 100.0% 66 / 66
FirefoxFirefox
 96.54% 9,329 / 9,663 100.0% 1,272 / 1,272 — 0.0% 0 / 37 98.97% 1,244 / 1,257

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,546 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,207 / 121,245 99.91% 15,973 / 15,988 — 99.99% 53,959 / 53,967 98.98% 6,482 / 6,549
SafariSafari
 — 99.92% 7,260 / 7,266 99.98% 25,759 / 25,764 — —
EdgeEdge
 100.0% 27,069 / 27,069 100.0% 326 / 326 — 100.0% 908 / 908 100.0% 61 / 61
FirefoxFirefox
 100.0% 7,919 / 7,919 100.0% 1,046 / 1,046 — 0.0% 0 / 28 99.52% 1,035 / 1,040