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Codec: avc1.640032
98.69% Encoder Support
317,054 of 321,276 sessions supported encoding
99.94% Decoder Support
269,525 of 269,692 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
High |
| Level |
5 |
| Maximum Resolution |
4K (4096×2176) |
| Maximum Bitrate |
135 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 321,276 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.26%
143,581 / 144,646
|
99.85%
19,655 / 19,684
|
— |
96.28%
61,550 / 63,927
|
97.33%
7,441 / 7,645
|
 Safari |
— |
99.99%
8,514 / 8,515
|
99.98%
31,333 / 31,338
|
— |
— |
 Edge |
99.8%
30,940 / 31,003
|
100.0%
359 / 359
|
— |
98.32%
994 / 1,011
|
100.0%
60 / 60
|
 Firefox |
96.04%
9,266 / 9,648
|
100.0%
1,345 / 1,345
|
— |
0.0%
0 / 39
|
98.75%
1,264 / 1,280
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 269,692 test sessions. Decoder data collection started Jan 2026.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.97%
121,851 / 121,885
|
99.87%
16,020 / 16,041
|
— |
99.99%
53,900 / 53,906
|
99.1%
6,404 / 6,462
|
 Safari |
— |
99.99%
7,127 / 7,128
|
99.98%
25,668 / 25,673
|
— |
— |
 Edge |
100.0%
26,904 / 26,904
|
100.0%
321 / 321
|
— |
100.0%
935 / 935
|
100.0%
53 / 53
|
 Firefox |
99.99%
7,832 / 7,833
|
100.0%
1,115 / 1,115
|
— |
0.0%
0 / 26
|
99.23%
1,037 / 1,045
|