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Codec: avc1.4d1020

98.72% Encoder Support
2,122,765 of 2,150,282 sessions supported encoding
99.8% Decoder Support
2,095,300 of 2,099,413 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,150,282 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 862,569 / 867,808 99.75% 100,751 / 101,004 — 97.35% 633,177 / 650,395 96.64% 42,307 / 43,779
SafariSafari
 — 99.74% 47,904 / 48,029 99.98% 218,006 / 218,057 — —
EdgeEdge
 99.86% 144,005 / 144,204 100.0% 1,491 / 1,491 — 99.21% 4,129 / 4,162 98.34% 650 / 661
FirefoxFirefox
 95.88% 51,133 / 53,332 99.99% 7,582 / 7,583 — 0.0% 0 / 110 98.98% 6,119 / 6,182

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,099,413 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,281 / 845,451 99.79% 97,148 / 97,348 — 99.65% 638,116 / 640,370 98.34% 41,902 / 42,611
SafariSafari
 — 99.82% 46,569 / 46,654 99.98% 212,507 / 212,558 — —
EdgeEdge
 100.0% 140,198 / 140,205 100.0% 1,446 / 1,446 — 100.0% 4,089 / 4,089 98.93% 648 / 655
FirefoxFirefox
 99.96% 51,534 / 51,553 99.96% 7,326 / 7,329 — 0.0% 0 / 105 98.61% 5,887 / 5,970