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Codec: avc1.4d1015

16.32% Encoder Support
52,365 of 320,771 sessions supported encoding
99.94% Decoder Support
269,514 of 269,688 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 320,771 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 / 144,287 0.13% 25 / 19,686 — 0.02% 10 / 63,709 0.37% 29 / 7,760
SafariSafari
 — 99.92% 8,630 / 8,637 99.95% 31,108 / 31,123 — —
EdgeEdge
 0.01% 2 / 31,097 0.0% 0 / 365 — 0.0% 0 / 961 0.0% 0 / 52
FirefoxFirefox
 96.07% 9,289 / 9,669 100.0% 1,284 / 1,284 — 0.0% 0 / 34 97.85% 1,275 / 1,303

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,688 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,739 / 121,773 99.88% 16,005 / 16,024 — 99.99% 53,771 / 53,779 99.25% 6,519 / 6,568
SafariSafari
 — 99.92% 7,246 / 7,252 99.98% 25,561 / 25,565 — —
EdgeEdge
 100.0% 27,115 / 27,116 100.0% 324 / 324 — 100.0% 897 / 897 97.67% 42 / 43
FirefoxFirefox
 99.99% 7,807 / 7,808 100.0% 1,055 / 1,055 — 0.0% 0 / 25 99.16% 1,065 / 1,074