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Codec: avc1.42040d

4.02% Encoder Support
12,921 of 321,145 sessions supported encoding
99.94% Decoder Support
269,990 of 270,163 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 1.3
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 768 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,145 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 43 / 144,475 0.13% 26 / 19,841 — 0.15% 92 / 63,385 0.74% 57 / 7,654
SafariSafari
 — 2.01% 173 / 8,606 1.53% 481 / 31,357 — —
EdgeEdge
 0.03% 10 / 31,149 0.0% 0 / 386 — 0.0% 0 / 933 0.0% 0 / 67
FirefoxFirefox
 95.77% 9,378 / 9,792 99.92% 1,316 / 1,317 — 0.0% 0 / 30 97.69% 1,309 / 1,340

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,163 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,894 / 121,930 99.89% 16,012 / 16,029 — 99.99% 53,572 / 53,578 99.01% 6,403 / 6,467
SafariSafari
 — 99.94% 7,254 / 7,258 99.99% 25,853 / 25,856 — —
EdgeEdge
 100.0% 27,140 / 27,141 100.0% 345 / 345 — 100.0% 858 / 858 100.0% 64 / 64
FirefoxFirefox
 100.0% 8,018 / 8,018 100.0% 1,104 / 1,104 — 0.0% 0 / 22 99.45% 1,093 / 1,099