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Codec: avc1.4d0c15

3.91% Encoder Support
12,530 of 320,753 sessions supported encoding
99.93% Decoder Support
269,688 of 269,875 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 2.1
Maximum Resolution SD (512×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,753 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 17 / 144,351 0.12% 23 / 19,671 — 0.01% 9 / 63,531 0.35% 27 / 7,779
SafariSafari
 — 1.66% 143 / 8,589 1.39% 435 / 31,272 — —
EdgeEdge
 0.01% 3 / 31,063 0.0% 0 / 349 — 0.0% 0 / 974 0.0% 0 / 68
FirefoxFirefox
 95.83% 9,309 / 9,714 100.0% 1,269 / 1,269 — 0.0% 0 / 39 98.53% 1,275 / 1,294

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,875 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 122,018 / 122,057 99.87% 15,959 / 15,979 — 99.98% 53,528 / 53,538 99.16% 6,581 / 6,637
SafariSafari
 — 99.85% 7,188 / 7,199 99.98% 25,683 / 25,687 — —
EdgeEdge
 100.0% 27,133 / 27,134 100.0% 308 / 308 — 100.0% 899 / 899 98.36% 60 / 61
FirefoxFirefox
 100.0% 7,877 / 7,877 100.0% 1,036 / 1,036 — 0.0% 0 / 27 99.25% 1,058 / 1,066