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Codec: avc1.4d000d

15.55% Encoder Support
333,988 of 2,147,573 sessions supported encoding
99.8% Decoder Support
2,092,228 of 2,096,373 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,147,573 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 74 / 866,961 0.12% 116 / 100,822 — 0.03% 183 / 649,450 0.29% 125 / 43,557
SafariSafari
 — 99.75% 48,042 / 48,164 99.97% 217,851 / 217,926 — —
EdgeEdge
 0.0% 5 / 143,449 0.0% 0 / 1,510 — 0.0% 0 / 4,191 0.0% 0 / 661
FirefoxFirefox
 95.92% 51,585 / 53,778 99.92% 7,470 / 7,476 — 0.0% 0 / 121 98.07% 5,902 / 6,018

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,096,373 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,278 / 844,470 99.81% 96,956 / 97,143 — 99.64% 636,985 / 639,314 98.39% 41,662 / 42,344
SafariSafari
 — 99.85% 46,715 / 46,787 99.98% 212,309 / 212,353 — —
EdgeEdge
 99.99% 139,466 / 139,473 100.0% 1,468 / 1,468 — 100.0% 4,110 / 4,110 99.08% 648 / 654
FirefoxFirefox
 99.97% 51,973 / 51,991 99.94% 7,266 / 7,270 — 0.0% 0 / 114 98.36% 5,699 / 5,794