Codec: avc1.4d0820

Codec Specifications

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,142 test sessions. Browser detection based on user agent strings.

Browser	Windows	macOS	iOS	Android	Linux
Chrome/Chromium	99.2% 27,666 / 27,890	99.89% 4,350 / 4,355	—	97.42% 11,943 / 12,259	98.29% 1,497 / 1,523
Safari	—	2.3% 38 / 1,655	1.41% 98 / 6,945	—	—
Edge	99.78% 5,011 / 5,022	100.0% 57 / 57	—	98.25% 112 / 114	100.0% 11 / 11
Firefox	95.34% 2,149 / 2,254	100.0% 293 / 293	—	0.0% 0 / 10	98.65% 293 / 297

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,028 test sessions. Decoder data collection started Jan 2026.

Browser	Windows	macOS	iOS	Android	Linux
Chrome/Chromium	99.96% 5,333 / 5,335	99.86% 700 / 701	—	100.0% 2,248 / 2,248	98.89% 355 / 359
Safari	—	100.0% 260 / 260	100.0% 1,453 / 1,453	—	—
Edge	100.0% 1,024 / 1,024	—	—	100.0% 34 / 34	—
Firefox	100.0% 421 / 421	100.0% 50 / 50	—	—	100.0% 55 / 55