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Codec: avc1.640c15
16.46% Encoder Support
52,811 of 320,886 sessions supported encoding
99.94% Decoder Support
269,442 of 269,606 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
High |
| Level |
2.1 |
| Maximum Resolution |
SD (512×480) |
| Maximum Bitrate |
4 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 320,886 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
0.02%
23 / 143,973
|
0.09%
18 / 19,784
|
— |
0.01%
6 / 63,787
|
0.27%
21 / 7,693
|
 Safari |
— |
99.88%
8,635 / 8,645
|
99.96%
31,344 / 31,356
|
— |
— |
 Edge |
0.0%
0 / 30,892
|
0.0%
0 / 379
|
— |
0.0%
0 / 998
|
0.0%
0 / 64
|
 Firefox |
95.93%
9,392 / 9,790
|
99.93%
1,345 / 1,346
|
— |
0.0%
0 / 34
|
98.37%
1,330 / 1,352
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 269,606 test sessions. Decoder data collection started Jan 2026.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.97%
121,400 / 121,433
|
99.88%
16,066 / 16,086
|
— |
99.99%
53,832 / 53,839
|
99.22%
6,454 / 6,505
|
 Safari |
— |
99.93%
7,223 / 7,228
|
99.98%
25,740 / 25,745
|
— |
— |
 Edge |
100.0%
26,896 / 26,896
|
100.0%
341 / 341
|
— |
100.0%
920 / 920
|
100.0%
57 / 57
|
 Firefox |
100.0%
7,942 / 7,942
|
100.0%
1,106 / 1,106
|
— |
0.0%
0 / 26
|
99.55%
1,108 / 1,113
|