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Codec: avc1.4d143d

84.51% Encoder Support
53,170 of 62,914 sessions supported encoding
84.92% Decoder Support
10,049 of 11,834 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 6.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 480 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,914 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.15% 27,345 / 27,580 99.73% 4,385 / 4,397 — 97.44% 12,010 / 12,326 98.02% 1,483 / 1,513
SafariSafari
 — 2.37% 40 / 1,691 1.51% 106 / 7,017 — —
EdgeEdge
 99.84% 4,984 / 4,992 97.92% 47 / 48 — 98.32% 117 / 119 100.0% 10 / 10
FirefoxFirefox
 94.75% 2,040 / 2,153 100.0% 303 / 303 — 0.0% 0 / 14 99.26% 270 / 272

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,834 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 5,148 / 5,149 99.72% 721 / 723 — 99.78% 2,241 / 2,246 98.58% 347 / 352
SafariSafari
 — 5.3% 15 / 283 1.99% 29 / 1,457 — —
EdgeEdge
 100.0% 1,004 / 1,004 — — 100.0% 30 / 30 —
FirefoxFirefox
 100.0% 399 / 399 100.0% 53 / 53 — — 100.0% 44 / 44