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Codec: avc1.4d001f

98.74% Encoder Support
2,121,469 of 2,148,648 sessions supported encoding
99.8% Decoder Support
2,093,178 of 2,097,295 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 2,148,648 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.41% 862,920 / 868,077 99.75% 100,316 / 100,572 — 97.37% 632,816 / 649,913 96.74% 42,363 / 43,791
SafariSafari
 — 99.78% 48,240 / 48,346 99.98% 218,217 / 218,255 — —
EdgeEdge
 99.86% 143,019 / 143,220 100.0% 1,437 / 1,437 — 99.29% 4,195 / 4,225 98.4% 676 / 687
FirefoxFirefox
 95.94% 50,985 / 53,145 99.95% 7,434 / 7,438 — 0.91% 1 / 110 98.59% 5,946 / 6,031

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,295 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,325 / 845,509 99.8% 96,672 / 96,870 — 99.64% 637,462 / 639,765 98.28% 41,856 / 42,590
SafariSafari
 — 99.86% 46,957 / 47,023 99.98% 212,603 / 212,640 — —
EdgeEdge
 99.99% 139,187 / 139,196 100.0% 1,393 / 1,393 — 100.0% 4,145 / 4,145 98.82% 671 / 679
FirefoxFirefox
 99.98% 51,371 / 51,381 99.93% 7,204 / 7,209 — 0.98% 1 / 102 98.38% 5,697 / 5,791