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Codec: avc1.420433
85.26% Encoder Support
53,843 of 63,153 sessions supported encoding
99.88% Decoder Support
12,002 of 12,016 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
Baseline |
| Level |
5.1 |
| Maximum Resolution |
8K (8192×4352) |
| Maximum Bitrate |
240 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 63,153 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.74%
27,760 / 27,831
|
99.93%
4,325 / 4,328
|
— |
99.7%
12,167 / 12,203
|
98.31%
1,566 / 1,593
|
 Safari |
— |
2.58%
43 / 1,664
|
1.44%
102 / 7,089
|
— |
— |
 Edge |
100.0%
4,997 / 4,997
|
100.0%
58 / 58
|
— |
100.0%
109 / 109
|
— |
 Firefox |
95.01%
2,094 / 2,204
|
100.0%
286 / 286
|
— |
— |
98.99%
294 / 297
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 12,016 test sessions. Decoder data collection started Jan 2026.