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Codec: avc1.4d1428
84.5% Encoder Support
53,239 of 63,005 sessions supported encoding
99.94% Decoder Support
12,073 of 12,080 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
Main |
| Level |
4 |
| Maximum Resolution |
1080p (1920×1080) |
| Maximum Bitrate |
20 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 63,005 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.18%
27,322 / 27,548
|
99.86%
4,341 / 4,347
|
— |
97.55%
11,899 / 12,198
|
97.92%
1,598 / 1,632
|
 Safari |
— |
2.37%
40 / 1,686
|
1.74%
124 / 7,107
|
— |
— |
 Edge |
99.92%
5,030 / 5,034
|
100.0%
46 / 46
|
— |
97.14%
102 / 105
|
— |
 Firefox |
95.45%
2,097 / 2,197
|
100.0%
303 / 303
|
— |
— |
98.31%
291 / 296
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 12,080 test sessions. Decoder data collection started Jan 2026.