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Codec: avc1.4d1428

84.5% Encoder Support
53,239 of 63,005 sessions supported encoding
99.94% Decoder Support
12,073 of 12,080 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,005 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.18% 27,322 / 27,548 99.86% 4,341 / 4,347 97.55% 11,899 / 12,198 97.92% 1,598 / 1,632
SafariSafari
2.37% 40 / 1,686 1.74% 124 / 7,107
EdgeEdge
99.92% 5,030 / 5,034 100.0% 46 / 46 97.14% 102 / 105
FirefoxFirefox
95.45% 2,097 / 2,197 100.0% 303 / 303 98.31% 291 / 296

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,080 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
100.0% 5,232 / 5,232 99.71% 682 / 684 100.0% 2,286 / 2,286 99.28% 412 / 415
SafariSafari
100.0% 281 / 281 100.0% 1,484 / 1,484
EdgeEdge
100.0% 1,067 / 1,067 100.0% 37 / 37
FirefoxFirefox
100.0% 385 / 385 100.0% 57 / 57 100.0% 62 / 62