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Codec: avc1.4d1428

86.53% Encoder Support
277,670 of 320,903 sessions supported encoding
99.94% Decoder Support
269,805 of 269,960 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 320,903 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.32% 143,152 / 144,139 99.85% 19,630 / 19,659 — 97.59% 62,150 / 63,682 97.91% 7,641 / 7,804
SafariSafari
 — 2.03% 174 / 8,591 1.54% 485 / 31,432 — —
EdgeEdge
 99.83% 30,949 / 31,002 100.0% 371 / 371 — 98.76% 1,033 / 1,046 100.0% 60 / 60
FirefoxFirefox
 96.5% 9,287 / 9,624 100.0% 1,348 / 1,348 — 0.0% 0 / 29 98.41% 1,297 / 1,318

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,960 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,792 / 121,818 99.88% 15,977 / 15,996 — 99.98% 53,761 / 53,770 99.18% 6,533 / 6,587
SafariSafari
 — 99.94% 7,179 / 7,183 99.99% 25,796 / 25,799 — —
EdgeEdge
 100.0% 27,035 / 27,035 100.0% 333 / 333 — 100.0% 978 / 978 100.0% 57 / 57
FirefoxFirefox
 100.0% 7,812 / 7,812 100.0% 1,102 / 1,102 — 0.0% 0 / 24 99.54% 1,079 / 1,084