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Codec: avc1.4d100c

15.53% Encoder Support
333,293 of 2,146,299 sessions supported encoding
99.81% Decoder Support
2,091,202 of 2,095,264 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,146,299 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 85 / 866,793 0.11% 111 / 100,528 — 0.03% 193 / 649,469 0.36% 157 / 43,907
SafariSafari
 — 99.76% 47,666 / 47,782 99.97% 217,793 / 217,855 — —
EdgeEdge
 0.01% 8 / 143,055 0.14% 2 / 1,434 — 0.0% 0 / 4,268 0.14% 1 / 716
FirefoxFirefox
 95.92% 51,237 / 53,417 99.93% 7,469 / 7,474 — 0.0% 0 / 105 98.01% 5,902 / 6,022

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,095,264 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,189 / 844,388 99.82% 96,612 / 96,786 — 99.65% 637,276 / 639,539 98.37% 41,983 / 42,680
SafariSafari
 — 99.85% 46,358 / 46,428 99.98% 212,134 / 212,178 — —
EdgeEdge
 100.0% 139,157 / 139,163 100.0% 1,391 / 1,391 — 100.0% 4,194 / 4,194 99.15% 703 / 709
FirefoxFirefox
 99.97% 51,634 / 51,652 99.97% 7,245 / 7,247 — 0.0% 0 / 97 98.54% 5,685 / 5,769