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Codec: avc1.64042a

84.31% Encoder Support
53,033 of 62,902 sessions supported encoding
99.98% Decoder Support
11,909 of 11,911 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,902 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.18% 27,350 / 27,575 99.93% 4,258 / 4,261 — 96.24% 11,785 / 12,245 97.46% 1,612 / 1,654
SafariSafari
 — 2.57% 42 / 1,633 1.57% 111 / 7,057 — —
EdgeEdge
 99.82% 5,039 / 5,048 100.0% 42 / 42 — 99.02% 101 / 102 100.0% 12 / 12
FirefoxFirefox
 94.81% 2,064 / 2,177 100.0% 300 / 300 — 0.0% 0 / 15 99.27% 273 / 275

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,911 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,229 / 5,229 100.0% 640 / 640 — 100.0% 2,231 / 2,231 99.51% 409 / 411
SafariSafari
 — 100.0% 252 / 252 100.0% 1,450 / 1,450 — —
EdgeEdge
 100.0% 1,052 / 1,052 — — 100.0% 30 / 30 —
FirefoxFirefox
 100.0% 413 / 413 100.0% 47 / 47 — — 100.0% 52 / 52