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Codec: avc1.64040a

4.59% Encoder Support
2,901 of 63,186 sessions supported encoding
99.96% Decoder Support
11,848 of 11,853 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,186 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 3 / 27,672 0.16% 7 / 4,455 — 0.02% 2 / 12,177 0.37% 6 / 1,607
SafariSafari
 — 2.45% 39 / 1,592 1.68% 119 / 7,083 — —
EdgeEdge
 0.0% 0 / 5,071 0.0% 0 / 53 — 0.0% 0 / 115 0.0% 0 / 12
FirefoxFirefox
 94.79% 2,145 / 2,263 100.0% 265 / 265 — 0.0% 0 / 11 98.37% 301 / 306

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,853 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,104 / 5,105 99.86% 722 / 723 — 100.0% 2,289 / 2,289 99.46% 366 / 368
SafariSafari
 — 100.0% 260 / 260 100.0% 1,470 / 1,470 — —
EdgeEdge
 100.0% 1,002 / 1,002 — — 100.0% 36 / 36 —
FirefoxFirefox
 100.0% 422 / 422 100.0% 43 / 43 — — 100.0% 51 / 51