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Codec: avc1.42140c

4.0% Encoder Support
12,800 of 320,039 sessions supported encoding
99.94% Decoder Support
268,688 of 268,856 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,039 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 35 / 144,152 0.18% 35 / 19,592 — 0.14% 88 / 63,190 0.75% 59 / 7,904
SafariSafari
 — 1.69% 145 / 8,586 1.48% 464 / 31,316 — —
EdgeEdge
 0.03% 9 / 30,712 0.0% 0 / 388 — 0.0% 0 / 971 0.0% 0 / 69
FirefoxFirefox
 95.97% 9,349 / 9,742 100.0% 1,289 / 1,289 — 0.0% 0 / 30 97.96% 1,294 / 1,321

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,856 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,477 / 121,511 99.88% 15,893 / 15,912 — 99.98% 53,365 / 53,375 99.11% 6,594 / 6,653
SafariSafari
 — 99.96% 7,219 / 7,222 99.99% 25,664 / 25,666 — —
EdgeEdge
 100.0% 26,662 / 26,662 100.0% 342 / 342 — 100.0% 901 / 901 96.83% 61 / 63
FirefoxFirefox
 100.0% 8,035 / 8,035 100.0% 1,042 / 1,042 — 0.0% 0 / 22 99.54% 1,083 / 1,088