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Codec: avc1.4d140c

4.64% Encoder Support
2,926 of 63,070 sessions supported encoding
99.91% Decoder Support
11,911 of 11,922 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,070 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 8 / 27,792 0.14% 6 / 4,308 — 0.04% 5 / 12,286 0.25% 4 / 1,619
SafariSafari
 — 2.41% 41 / 1,701 1.95% 136 / 6,991 — —
EdgeEdge
 0.0% 0 / 4,931 0.0% 0 / 49 — 0.0% 0 / 98 0.0% 0 / 10
FirefoxFirefox
 95.59% 2,147 / 2,246 100.0% 290 / 290 — 0.0% 0 / 13 97.57% 281 / 288

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,922 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 5,229 / 5,232 99.69% 648 / 650 — 100.0% 2,254 / 2,254 98.74% 391 / 396
SafariSafari
 — 100.0% 294 / 294 100.0% 1,421 / 1,421 — —
EdgeEdge
 100.0% 1,012 / 1,012 — — 100.0% 26 / 26 —
FirefoxFirefox
 100.0% 419 / 419 100.0% 62 / 62 — — 100.0% 55 / 55