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Codec: avc1.42000d

15.65% Encoder Support
336,287 of 2,148,927 sessions supported encoding
99.8% Decoder Support
2,093,536 of 2,097,670 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,927 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 232 / 867,991 0.15% 150 / 100,751 — 0.3% 1,916 / 649,292 0.85% 370 / 43,543
SafariSafari
 — 99.74% 47,981 / 48,106 99.97% 218,556 / 218,621 — —
EdgeEdge
 0.03% 39 / 144,062 0.07% 1 / 1,446 — 0.0% 0 / 4,179 0.44% 3 / 683
FirefoxFirefox
 95.76% 50,869 / 53,121 99.95% 7,499 / 7,503 — 0.0% 0 / 119 97.99% 5,858 / 5,978

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,670 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,177 / 845,374 99.79% 96,849 / 97,050 — 99.65% 637,058 / 639,274 98.23% 41,577 / 42,327
SafariSafari
 — 99.83% 46,666 / 46,744 99.98% 212,951 / 212,998 — —
EdgeEdge
 100.0% 140,100 / 140,107 100.0% 1,407 / 1,407 — 100.0% 4,103 / 4,103 98.38% 666 / 677
FirefoxFirefox
 99.96% 51,349 / 51,367 100.0% 7,275 / 7,275 — 0.0% 0 / 112 98.59% 5,655 / 5,736