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Codec: avc1.64040c

4.54% Encoder Support
2,846 of 62,711 sessions supported encoding
99.93% Decoder Support
11,857 of 11,865 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,711 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 / 27,535 0.12% 5 / 4,344 — 0.02% 3 / 12,270 0.39% 6 / 1,524
SafariSafari
 — 2.55% 40 / 1,567 1.62% 113 / 6,961 — —
EdgeEdge
 0.0% 0 / 5,035 0.0% 0 / 49 — 0.0% 0 / 107 0.0% 0 / 11
FirefoxFirefox
 94.92% 2,074 / 2,185 100.0% 279 / 279 — 0.0% 0 / 10 98.37% 301 / 306

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,865 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 5,205 / 5,208 99.85% 666 / 667 — 100.0% 2,285 / 2,285 99.75% 397 / 398
SafariSafari
 — 100.0% 247 / 247 100.0% 1,390 / 1,390 — —
EdgeEdge
 100.0% 1,039 / 1,039 100.0% 10 / 10 — 100.0% 25 / 25 —
FirefoxFirefox
 100.0% 404 / 404 100.0% 48 / 48 — — 100.0% 54 / 54