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Codec: avc1.42140c

3.37% Encoder Support
72,434 of 2,148,668 sessions supported encoding
99.8% Decoder Support
2,093,254 of 2,097,485 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,668 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 253 / 868,431 0.17% 169 / 100,591 — 0.3% 1,934 / 648,665 0.91% 400 / 44,107
SafariSafari
 — 1.47% 711 / 48,296 1.81% 3,948 / 218,578 — —
EdgeEdge
 0.02% 35 / 143,028 0.07% 1 / 1,497 — 0.0% 0 / 4,199 0.15% 1 / 681
FirefoxFirefox
 95.98% 51,493 / 53,648 99.92% 7,380 / 7,386 — 0.0% 0 / 108 97.6% 5,948 / 6,094

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,485 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,599 / 845,790 99.79% 96,712 / 96,911 — 99.63% 636,482 / 638,850 98.32% 42,136 / 42,856
SafariSafari
 — 99.8% 46,840 / 46,932 99.98% 212,880 / 212,928 — —
EdgeEdge
 99.99% 138,966 / 138,978 100.0% 1,451 / 1,451 — 100.0% 4,129 / 4,129 98.96% 668 / 675
FirefoxFirefox
 99.97% 51,928 / 51,941 99.97% 7,137 / 7,139 — 0.0% 0 / 100 98.53% 5,775 / 5,861