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Codec: avc1.4d142a

86.51% Encoder Support
277,785 of 321,090 sessions supported encoding
99.93% Decoder Support
269,644 of 269,827 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,090 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,372 / 144,412 99.83% 19,568 / 19,601 — 97.49% 62,085 / 63,682 98.05% 7,634 / 7,786
SafariSafari
 — 2.05% 180 / 8,779 1.46% 455 / 31,095 — —
EdgeEdge
 99.81% 31,055 / 31,115 100.0% 367 / 367 — 98.97% 962 / 972 98.63% 72 / 73
FirefoxFirefox
 96.13% 9,370 / 9,747 100.0% 1,285 / 1,285 — 0.0% 0 / 35 99.15% 1,280 / 1,291

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,827 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,700 / 121,739 99.88% 15,910 / 15,929 — 99.99% 53,764 / 53,770 99.15% 6,509 / 6,565
SafariSafari
 — 99.95% 7,355 / 7,359 99.99% 25,565 / 25,568 — —
EdgeEdge
 99.99% 27,111 / 27,113 100.0% 327 / 327 — 100.0% 895 / 895 100.0% 64 / 64
FirefoxFirefox
 100.0% 7,955 / 7,955 100.0% 1,052 / 1,052 — 0.0% 0 / 30 99.33% 1,032 / 1,039