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Codec: avc1.4d043c

86.6% Encoder Support
277,434 of 320,377 sessions supported encoding
87.87% Decoder Support
236,542 of 269,207 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,377 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 143,244 / 144,298 99.75% 19,596 / 19,645 — 97.58% 62,296 / 63,841 97.58% 7,393 / 7,576
SafariSafari
 — 2.01% 174 / 8,664 1.54% 476 / 30,887 — —
EdgeEdge
 99.82% 30,918 / 30,975 100.0% 364 / 364 — 98.99% 981 / 991 98.31% 58 / 59
FirefoxFirefox
 96.02% 9,210 / 9,592 100.0% 1,328 / 1,328 — 0.0% 0 / 36 98.78% 1,295 / 1,311

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,207 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 121,833 / 121,903 99.75% 15,946 / 15,986 — 99.86% 53,694 / 53,769 98.39% 6,278 / 6,381
SafariSafari
 — 2.0% 145 / 7,247 1.48% 374 / 25,279 — —
EdgeEdge
 99.97% 26,968 / 26,976 100.0% 318 / 318 — 100.0% 912 / 912 100.0% 53 / 53
FirefoxFirefox
 99.96% 7,840 / 7,843 99.91% 1,068 / 1,069 — 0.0% 0 / 23 99.06% 1,050 / 1,060