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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 Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 42 / 145,048 0.16% 32 / 19,820 — 0.16% 99 / 63,724 0.91% 71 / 7,824
SafariSafari
 — 2.01% 172 / 8,573 1.36% 425 / 31,342 — —
EdgeEdge
 0.04% 12 / 30,840 0.0% 0 / 390 — 0.0% 0 / 1,049 0.0% 0 / 75
FirefoxFirefox
 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 Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/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
SafariSafari
 — 99.87% 7,147 / 7,156 99.99% 25,670 / 25,673 — —
EdgeEdge
 100.0% 26,896 / 26,897 100.0% 343 / 343 — 100.0% 970 / 970 100.0% 69 / 69
FirefoxFirefox
 100.0% 7,933 / 7,933 100.0% 1,102 / 1,102 — 0.0% 0 / 21 99.54% 1,080 / 1,085