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Codec: avc1.4d140c

3.96% Encoder Support
12,670 of 319,948 sessions supported encoding
99.93% Decoder Support
268,602 of 268,778 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 319,948 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 16 / 144,106 0.13% 26 / 19,541 — 0.02% 11 / 63,626 0.23% 18 / 7,817
SafariSafari
 — 1.82% 157 / 8,637 1.51% 469 / 31,086 — —
EdgeEdge
 0.0% 1 / 30,562 0.0% 0 / 377 — 0.0% 0 / 962 0.0% 0 / 73
FirefoxFirefox
 96.15% 9,394 / 9,770 100.0% 1,285 / 1,285 — 0.0% 0 / 34 98.0% 1,275 / 1,301

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,778 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,502 / 121,545 99.89% 15,865 / 15,883 — 99.99% 53,589 / 53,594 99.09% 6,534 / 6,594
SafariSafari
 — 99.94% 7,219 / 7,223 99.98% 25,498 / 25,502 — —
EdgeEdge
 100.0% 26,643 / 26,643 100.0% 337 / 337 — 100.0% 890 / 890 98.48% 65 / 66
FirefoxFirefox
 100.0% 7,943 / 7,943 100.0% 1,057 / 1,057 — 0.0% 0 / 22 99.25% 1,060 / 1,068