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Codec: avc1.42143d

87.2% Encoder Support
1,874,292 of 2,149,444 sessions supported encoding
87.4% Decoder Support
1,834,144 of 2,098,461 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 2,149,444 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.9% 867,319 / 868,161 99.63% 100,085 / 100,455 — 99.25% 644,208 / 649,052 97.27% 42,868 / 44,070
SafariSafari
 — 1.58% 766 / 48,352 1.88% 4,118 / 218,833 — —
EdgeEdge
 99.97% 143,358 / 143,396 100.0% 1,455 / 1,455 — 99.69% 4,122 / 4,135 98.53% 672 / 682
FirefoxFirefox
 95.89% 51,507 / 53,714 100.0% 7,476 / 7,476 — 0.89% 1 / 112 98.87% 5,972 / 6,040

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,461 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.95% 845,328 / 845,713 99.62% 96,413 / 96,776 — 99.37% 635,060 / 639,092 97.37% 41,707 / 42,834
SafariSafari
 — 1.64% 768 / 46,942 1.88% 4,019 / 213,252 — —
EdgeEdge
 99.97% 139,526 / 139,564 100.0% 1,413 / 1,413 — 100.0% 4,054 / 4,054 98.97% 671 / 678
FirefoxFirefox
 99.93% 51,915 / 51,949 99.9% 7,228 / 7,235 — 0.97% 1 / 103 98.28% 5,703 / 5,803