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Codec: avc1.4d040c

4.53% Encoder Support
2,852 of 62,944 sessions supported encoding
99.94% Decoder Support
11,881 of 11,888 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 62,944 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 4 / 27,594 0.05% 2 / 4,303 — 0.01% 1 / 12,322 0.19% 3 / 1,575
SafariSafari
 — 2.74% 45 / 1,641 1.51% 107 / 7,080 — —
EdgeEdge
 0.0% 0 / 5,009 0.0% 0 / 50 — 0.0% 0 / 109 0.0% 0 / 10
FirefoxFirefox
 95.14% 2,096 / 2,203 99.67% 301 / 302 — — 98.95% 284 / 287

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,888 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,243 / 5,243 99.85% 664 / 665 — 100.0% 2,233 / 2,233 98.73% 390 / 395
SafariSafari
 — 100.0% 268 / 268 100.0% 1,427 / 1,427 — —
EdgeEdge
 100.0% 1,011 / 1,011 — — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 424 / 424 100.0% 59 / 59 — — 100.0% 51 / 51