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Codec: avc1.4d0033

98.72% Encoder Support
2,121,611 of 2,149,115 sessions supported encoding
99.8% Decoder Support
2,094,163 of 2,098,288 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 2,149,115 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 861,782 / 867,090 99.76% 100,088 / 100,332 — 97.37% 633,821 / 650,951 96.7% 42,376 / 43,820
SafariSafari
 — 99.79% 48,218 / 48,321 99.98% 218,617 / 218,671 — —
EdgeEdge
 99.84% 143,065 / 143,292 100.0% 1,409 / 1,409 — 99.27% 4,192 / 4,223 98.29% 690 / 702
FirefoxFirefox
 95.82% 50,994 / 53,220 99.99% 7,534 / 7,535 — 0.81% 1 / 124 98.7% 5,916 / 5,994

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,288 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,363 / 844,569 99.81% 96,492 / 96,674 — 99.64% 638,822 / 641,111 98.35% 41,898 / 42,601
SafariSafari
 — 99.88% 46,908 / 46,965 99.97% 213,088 / 213,142 — —
EdgeEdge
 99.99% 139,331 / 139,339 100.0% 1,366 / 1,366 — 100.0% 4,143 / 4,143 98.56% 684 / 694
FirefoxFirefox
 99.96% 51,487 / 51,508 99.99% 7,283 / 7,284 — 0.88% 1 / 114 98.4% 5,672 / 5,764