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Codec: avc1.641428

86.16% Encoder Support
1,851,742 of 2,149,215 sessions supported encoding
99.81% Decoder Support
2,094,078 of 2,098,169 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,215 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.38% 863,463 / 868,885 99.73% 100,439 / 100,709 — 96.52% 626,342 / 648,918 96.21% 42,091 / 43,750
SafariSafari
 — 1.64% 787 / 47,980 1.84% 4,012 / 218,606 — —
EdgeEdge
 99.85% 143,221 / 143,431 99.93% 1,470 / 1,471 — 98.65% 4,094 / 4,150 98.32% 702 / 714
FirefoxFirefox
 95.95% 51,235 / 53,400 99.96% 7,556 / 7,559 — 0.83% 1 / 120 98.97% 5,978 / 6,040

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,169 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 846,244 / 846,429 99.79% 96,830 / 97,031 — 99.65% 636,808 / 639,055 98.33% 41,866 / 42,576
SafariSafari
 — 99.86% 46,502 / 46,566 99.98% 212,948 / 213,001 — —
EdgeEdge
 99.99% 139,401 / 139,409 100.0% 1,424 / 1,424 — 100.0% 4,072 / 4,072 98.73% 698 / 707
FirefoxFirefox
 99.97% 51,594 / 51,611 99.95% 7,303 / 7,307 — 0.9% 1 / 111 98.58% 5,706 / 5,788