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Codec: avc1.42140d

3.38% Encoder Support
72,699 of 2,149,218 sessions supported encoding
99.8% Decoder Support
2,093,771 of 2,097,917 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 2,149,218 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 248 / 868,133 0.18% 185 / 100,698 — 0.3% 1,950 / 649,954 0.96% 420 / 43,884
SafariSafari
 — 1.49% 718 / 48,310 1.87% 4,071 / 217,695 — —
EdgeEdge
 0.03% 38 / 143,354 0.0% 0 / 1,427 — 0.0% 0 / 4,257 0.15% 1 / 653
FirefoxFirefox
 95.89% 51,557 / 53,766 99.96% 7,485 / 7,488 — 0.0% 0 / 103 98.24% 5,866 / 5,971

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,917 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 845,356 / 845,569 99.81% 96,766 / 96,951 — 99.65% 637,697 / 639,965 98.27% 41,925 / 42,662
SafariSafari
 — 99.81% 46,834 / 46,921 99.97% 212,030 / 212,084 — —
EdgeEdge
 99.99% 139,362 / 139,372 100.0% 1,393 / 1,393 — 100.0% 4,170 / 4,170 98.92% 639 / 646
FirefoxFirefox
 99.97% 51,982 / 51,996 99.97% 7,247 / 7,249 — 0.0% 0 / 91 98.61% 5,675 / 5,755