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Codec: avc1.4d0c1f

86.5% Encoder Support
277,358 of 320,661 sessions supported encoding
99.93% Decoder Support
269,883 of 270,064 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 3.1
Maximum Resolution HD ready (1024×960)
Maximum Bitrate 14 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,661 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.32% 142,789 / 143,769 99.87% 19,778 / 19,803 — 97.62% 62,075 / 63,589 98.0% 7,614 / 7,769
SafariSafari
 — 1.95% 168 / 8,631 1.48% 466 / 31,451 — —
EdgeEdge
 99.82% 31,063 / 31,118 100.0% 356 / 356 — 99.06% 950 / 959 96.88% 62 / 64
FirefoxFirefox
 96.33% 9,292 / 9,646 100.0% 1,354 / 1,354 — 0.0% 0 / 34 98.71% 1,299 / 1,316

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,064 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,548 / 121,583 99.9% 16,118 / 16,134 — 99.98% 53,742 / 53,755 99.06% 6,534 / 6,596
SafariSafari
 — 99.96% 7,302 / 7,305 99.98% 25,823 / 25,827 — —
EdgeEdge
 100.0% 27,073 / 27,074 100.0% 313 / 313 — 100.0% 893 / 893 96.55% 56 / 58
FirefoxFirefox
 99.99% 7,889 / 7,890 100.0% 1,141 / 1,141 — 0.0% 0 / 22 99.44% 1,069 / 1,075