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Codec: avc1.64142a

84.38% Encoder Support
53,343 of 63,221 sessions supported encoding
99.95% Decoder Support
12,013 of 12,019 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 63,221 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.18% 27,570 / 27,799 99.91% 4,491 / 4,495 — 96.27% 11,654 / 12,105 97.71% 1,580 / 1,617
SafariSafari
 — 3.21% 51 / 1,589 1.76% 126 / 7,169 — —
EdgeEdge
 99.94% 5,030 / 5,033 100.0% 46 / 46 — 99.05% 104 / 105 —
FirefoxFirefox
 94.88% 2,077 / 2,189 100.0% 273 / 273 — 0.0% 0 / 13 99.67% 300 / 301

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,019 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,250 / 5,251 99.72% 712 / 714 — 100.0% 2,291 / 2,291 99.52% 418 / 420
SafariSafari
 — 100.0% 261 / 261 100.0% 1,462 / 1,462 — —
EdgeEdge
 100.0% 1,018 / 1,018 — — 100.0% 34 / 34 —
FirefoxFirefox
 100.0% 392 / 392 100.0% 39 / 39 — — 100.0% 57 / 57