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Codec: avc1.42140a

4.04% Encoder Support
12,950 of 320,940 sessions supported encoding
99.93% Decoder Support
269,818 of 270,006 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 320,940 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 48 / 144,230 0.09% 18 / 19,842 — 0.15% 94 / 63,717 0.74% 58 / 7,815
SafariSafari
 — 2.01% 173 / 8,595 1.49% 466 / 31,183 — —
EdgeEdge
 0.03% 9 / 30,913 0.0% 0 / 352 — 0.0% 0 / 929 0.0% 0 / 55
FirefoxFirefox
 96.04% 9,408 / 9,796 100.0% 1,372 / 1,372 — 0.0% 0 / 33 98.15% 1,271 / 1,295

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,006 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,893 / 121,922 99.89% 16,061 / 16,078 — 99.98% 53,781 / 53,790 98.9% 6,552 / 6,625
SafariSafari
 — 99.93% 7,223 / 7,228 99.99% 25,566 / 25,568 — —
EdgeEdge
 100.0% 26,945 / 26,945 100.0% 312 / 312 — 100.0% 859 / 859 98.0% 49 / 50
FirefoxFirefox
 99.99% 8,021 / 8,022 100.0% 1,115 / 1,115 — 0.0% 0 / 28 99.35% 1,067 / 1,074