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Codec: avc1.4d140d

4.63% Encoder Support
2,908 of 62,849 sessions supported encoding
99.93% Decoder Support
11,953 of 11,961 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,849 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.02% 5 / 27,520 0.12% 5 / 4,344 — 0.05% 6 / 12,117 0.13% 2 / 1,592
SafariSafari
 — 1.82% 30 / 1,646 1.78% 126 / 7,068 — —
EdgeEdge
 0.0% 0 / 5,028 0.0% 0 / 60 — 0.0% 0 / 102 0.0% 0 / 17
FirefoxFirefox
 95.38% 2,146 / 2,250 99.67% 299 / 300 — 0.0% 0 / 15 97.86% 275 / 281

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,961 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,158 / 5,160 99.69% 653 / 655 — 100.0% 2,282 / 2,282 99.51% 404 / 406
SafariSafari
 — 100.0% 260 / 260 100.0% 1,494 / 1,494 — —
EdgeEdge
 100.0% 1,060 / 1,060 100.0% 11 / 11 — 100.0% 33 / 33 —
FirefoxFirefox
 100.0% 420 / 420 100.0% 45 / 45 — — 100.0% 54 / 54