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Codec: avc1.420c3d

87.13% Encoder Support
279,652 of 320,975 sessions supported encoding
87.66% Decoder Support
236,537 of 269,840 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,975 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.79% 143,583 / 143,888 99.72% 19,649 / 19,704 — 99.65% 63,842 / 64,069 98.25% 7,630 / 7,766
SafariSafari
 — 1.87% 162 / 8,676 1.42% 447 / 31,381 — —
EdgeEdge
 99.96% 30,964 / 30,976 100.0% 364 / 364 — 99.58% 947 / 951 98.21% 55 / 56
FirefoxFirefox
 95.99% 9,266 / 9,653 100.0% 1,367 / 1,367 — 0.0% 0 / 26 99.08% 1,294 / 1,306

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,840 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 121,331 / 121,402 99.72% 15,961 / 16,006 — 99.85% 54,077 / 54,159 98.38% 6,430 / 6,536
SafariSafari
 — 1.88% 138 / 7,331 1.36% 351 / 25,776 — —
EdgeEdge
 99.96% 26,901 / 26,912 100.0% 325 / 325 — 100.0% 876 / 876 98.0% 49 / 50
FirefoxFirefox
 99.96% 7,858 / 7,861 99.82% 1,122 / 1,124 — 0.0% 0 / 19 99.07% 1,060 / 1,070