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Codec: avc1.42100b

15.67% Encoder Support
336,764 of 2,149,035 sessions supported encoding
99.81% Decoder Support
2,093,513 of 2,097,577 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,035 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 259 / 868,204 0.16% 162 / 100,499 — 0.31% 2,011 / 649,518 0.88% 383 / 43,752
SafariSafari
 — 99.72% 47,872 / 48,006 99.97% 218,339 / 218,409 — —
EdgeEdge
 0.03% 39 / 143,529 0.14% 2 / 1,453 — 0.0% 0 / 4,192 0.16% 1 / 641
FirefoxFirefox
 95.96% 51,486 / 53,655 99.88% 7,532 / 7,541 — 0.0% 0 / 108 97.92% 5,921 / 6,047

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,577 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,495 / 845,697 99.79% 96,593 / 96,798 — 99.66% 637,179 / 639,368 98.36% 41,824 / 42,523
SafariSafari
 — 99.83% 46,566 / 46,644 99.98% 212,716 / 212,762 — —
EdgeEdge
 99.99% 139,489 / 139,498 100.0% 1,408 / 1,408 — 100.0% 4,111 / 4,111 99.22% 632 / 637
FirefoxFirefox
 99.97% 51,839 / 51,857 99.95% 7,302 / 7,306 — 0.0% 0 / 101 98.37% 5,722 / 5,817