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Codec: avc1.4d102a

98.72% Encoder Support
2,121,581 of 2,148,981 sessions supported encoding
99.81% Decoder Support
2,093,804 of 2,097,831 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,981 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 862,390 / 867,587 99.75% 100,731 / 100,981 — 97.35% 632,296 / 649,481 96.62% 42,472 / 43,957
SafariSafari
 — 99.81% 48,197 / 48,288 99.98% 218,012 / 218,051 — —
EdgeEdge
 99.85% 143,769 / 143,982 100.0% 1,445 / 1,445 — 99.36% 4,174 / 4,201 98.83% 676 / 684
FirefoxFirefox
 95.89% 51,243 / 53,437 99.97% 7,410 / 7,412 — 0.92% 1 / 109 98.82% 5,839 / 5,909

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,831 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,002 / 845,206 99.8% 96,917 / 97,108 — 99.66% 637,275 / 639,445 98.27% 42,025 / 42,764
SafariSafari
 — 99.87% 46,815 / 46,877 99.98% 212,487 / 212,526 — —
EdgeEdge
 100.0% 139,993 / 140,000 100.0% 1,401 / 1,401 — 100.0% 4,120 / 4,120 98.97% 674 / 681
FirefoxFirefox
 99.97% 51,701 / 51,716 99.94% 7,180 / 7,184 — 0.97% 1 / 103 98.61% 5,599 / 5,678