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Codec: avc1.4d140a

4.37% Encoder Support
2,741 of 62,688 sessions supported encoding
99.9% Decoder Support
11,909 of 11,921 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,688 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.03% 7 / 27,489 0.09% 4 / 4,448 — 0.03% 4 / 12,217 0.25% 4 / 1,569
SafariSafari
 — 2.12% 35 / 1,653 1.51% 106 / 7,035 — —
EdgeEdge
 0.0% 0 / 4,949 0.0% 0 / 42 — 0.0% 0 / 107 0.0% 0 / 15
FirefoxFirefox
 94.82% 2,013 / 2,123 100.0% 266 / 266 — — 97.29% 287 / 295

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,921 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,173 / 5,175 99.86% 693 / 694 — 100.0% 2,313 / 2,313 98.46% 383 / 389
SafariSafari
 — 100.0% 269 / 269 100.0% 1,428 / 1,428 — —
EdgeEdge
 100.0% 1,019 / 1,019 — — 100.0% 31 / 31 —
FirefoxFirefox
 100.0% 394 / 394 100.0% 42 / 42 — — 100.0% 66 / 66