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Codec: avc1.4d1432
86.58% Encoder Support
277,608 of 320,648 sessions supported encoding
99.92% Decoder Support
269,501 of 269,706 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
Main |
| Level |
5 |
| Maximum Resolution |
4K (4096×2176) |
| Maximum Bitrate |
135 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 320,648 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.28%
143,216 / 144,260
|
99.88%
19,635 / 19,658
|
— |
97.58%
61,918 / 63,456
|
97.71%
7,707 / 7,888
|
 Safari |
— |
2.04%
173 / 8,490
|
1.43%
446 / 31,181
|
— |
— |
 Edge |
99.82%
31,053 / 31,110
|
100.0%
362 / 362
|
— |
99.37%
945 / 951
|
100.0%
57 / 57
|
 Firefox |
96.25%
9,416 / 9,783
|
100.0%
1,296 / 1,296
|
— |
0.0%
0 / 47
|
98.7%
1,287 / 1,304
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 269,706 test sessions. Decoder data collection started Jan 2026.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.97%
121,759 / 121,795
|
99.89%
16,003 / 16,020
|
— |
99.98%
53,568 / 53,579
|
98.96%
6,565 / 6,634
|
 Safari |
— |
99.9%
7,123 / 7,130
|
99.98%
25,635 / 25,639
|
— |
— |
 Edge |
100.0%
27,114 / 27,114
|
100.0%
320 / 320
|
— |
100.0%
882 / 882
|
100.0%
51 / 51
|
 Firefox |
99.99%
7,955 / 7,956
|
100.0%
1,077 / 1,077
|
— |
0.0%
0 / 37
|
99.34%
1,061 / 1,068
|