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Codec: avc1.640c1f

98.62% Encoder Support
62,428 of 63,299 sessions supported encoding
99.93% Decoder Support
12,095 of 12,103 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,299 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.13% 27,788 / 28,031 99.95% 4,250 / 4,252 — 96.27% 11,632 / 12,083 97.62% 1,559 / 1,597
SafariSafari
 — 99.94% 1,625 / 1,626 100.0% 7,158 / 7,158 — —
EdgeEdge
 99.8% 5,081 / 5,091 100.0% 49 / 49 — 98.23% 111 / 113 91.67% 11 / 12
FirefoxFirefox
 95.3% 2,090 / 2,193 100.0% 301 / 301 — 0.0% 0 / 12 98.94% 280 / 283

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,103 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,465 / 5,467 100.0% 635 / 635 — 100.0% 2,256 / 2,256 99.25% 397 / 400
SafariSafari
 — 100.0% 244 / 244 100.0% 1,456 / 1,456 — —
EdgeEdge
 100.0% 1,002 / 1,002 — — 100.0% 27 / 27 —
FirefoxFirefox
 100.0% 406 / 406 100.0% 53 / 53 — — 100.0% 57 / 57