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Codec: avc1.420020
99.67% Encoder Support
62,597 of 62,806 sessions supported encoding
99.95% Decoder Support
11,885 of 11,891 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
Baseline |
| Level |
3.2 |
| Maximum Resolution |
1080p (1920×1080) |
| Maximum Bitrate |
20 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 62,806 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.79%
27,583 / 27,640
|
100.0%
4,271 / 4,271
|
— |
99.83%
12,055 / 12,076
|
98.64%
1,598 / 1,620
|
 Safari |
— |
99.94%
1,636 / 1,637
|
100.0%
7,048 / 7,048
|
— |
— |
 Edge |
100.0%
5,049 / 5,049
|
100.0%
48 / 48
|
— |
100.0%
110 / 110
|
— |
 Firefox |
95.77%
2,084 / 2,176
|
100.0%
287 / 287
|
— |
0.0%
0 / 12
|
99.37%
314 / 316
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 11,891 test sessions. Decoder data collection started Jan 2026.