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Codec: avc1.4d0033

98.95% Encoder Support
317,189 of 320,548 sessions supported encoding
99.93% Decoder Support
269,532 of 269,722 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.1
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,548 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 143,410 / 144,483 99.86% 19,557 / 19,585 — 97.64% 62,265 / 63,768 97.75% 7,515 / 7,688
SafariSafari
 — 99.92% 8,608 / 8,615 99.98% 31,150 / 31,155 — —
EdgeEdge
 99.77% 30,860 / 30,931 100.0% 334 / 334 — 98.82% 925 / 936 100.0% 69 / 69
FirefoxFirefox
 95.8% 9,139 / 9,540 100.0% 1,334 / 1,334 — 0.0% 0 / 37 98.73% 1,246 / 1,262

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,722 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,919 / 121,962 99.9% 15,911 / 15,927 — 99.99% 53,923 / 53,928 98.98% 6,403 / 6,469
SafariSafari
 — 99.9% 7,253 / 7,260 99.98% 25,621 / 25,626 — —
EdgeEdge
 100.0% 26,978 / 26,978 100.0% 291 / 291 — 100.0% 856 / 856 100.0% 61 / 61
FirefoxFirefox
 100.0% 7,828 / 7,828 100.0% 1,083 / 1,083 — 0.0% 0 / 27 99.13% 1,023 / 1,032