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Codec: avc1.42043d

87.24% Encoder Support
279,823 of 320,745 sessions supported encoding
87.8% Decoder Support
236,774 of 269,686 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 320,745 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.8% 144,103 / 144,386 99.77% 19,811 / 19,857 — 99.67% 63,650 / 63,859 98.16% 7,524 / 7,665
SafariSafari
 — 2.2% 187 / 8,486 1.5% 468 / 31,238 — —
EdgeEdge
 99.97% 30,807 / 30,816 100.0% 352 / 352 — 99.4% 999 / 1,005 98.68% 75 / 76
FirefoxFirefox
 96.2% 9,194 / 9,557 100.0% 1,283 / 1,283 — 0.0% 0 / 31 99.29% 1,258 / 1,267

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,686 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 121,768 / 121,833 99.73% 16,124 / 16,167 — 99.86% 53,810 / 53,885 98.21% 6,327 / 6,442
SafariSafari
 — 2.15% 154 / 7,153 1.46% 373 / 25,598 — —
EdgeEdge
 99.97% 26,997 / 27,006 100.0% 315 / 315 — 100.0% 925 / 925 100.0% 72 / 72
FirefoxFirefox
 99.9% 7,771 / 7,779 99.91% 1,061 / 1,062 — 0.0% 0 / 21 99.31% 1,001 / 1,008