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Codec: avc1.420c0a
4.0% Encoder Support
12,870 of 321,951 sessions supported encoding
99.94% Decoder Support
270,262 of 270,430 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
Baseline |
| Level |
1 |
| Maximum Resolution |
SD (384×384 or smaller) |
| Maximum Bitrate |
64 Kbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 321,951 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
0.03%
42 / 145,048
|
0.16%
32 / 19,820
|
— |
0.16%
99 / 63,724
|
0.91%
71 / 7,824
|
 Safari |
— |
2.01%
172 / 8,573
|
1.36%
425 / 31,342
|
— |
— |
 Edge |
0.04%
12 / 30,840
|
0.0%
0 / 390
|
— |
0.0%
0 / 1,049
|
0.0%
0 / 75
|
 Firefox |
96.01%
9,328 / 9,716
|
100.0%
1,335 / 1,335
|
— |
0.0%
0 / 28
|
98.51%
1,322 / 1,342
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 270,430 test sessions. Decoder data collection started Jan 2026.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.97%
122,278 / 122,314
|
99.94%
16,066 / 16,076
|
— |
99.99%
53,738 / 53,744
|
99.08%
6,558 / 6,619
|
 Safari |
— |
99.87%
7,147 / 7,156
|
99.99%
25,670 / 25,673
|
— |
— |
 Edge |
100.0%
26,896 / 26,897
|
100.0%
343 / 343
|
— |
100.0%
970 / 970
|
100.0%
69 / 69
|
 Firefox |
100.0%
7,933 / 7,933
|
100.0%
1,102 / 1,102
|
— |
0.0%
0 / 21
|
99.54%
1,080 / 1,085
|