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Codec: avc1.4d1032

98.73% Encoder Support
2,122,550 of 2,149,781 sessions supported encoding
99.81% Decoder Support
2,094,654 of 2,098,665 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5
Maximum Resolution 4K (4096×2176)
Maximum Bitrate 135 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,781 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 862,692 / 867,979 99.77% 100,492 / 100,721 — 97.39% 633,976 / 650,967 96.73% 42,457 / 43,892
SafariSafari
 — 99.76% 47,800 / 47,916 99.98% 218,330 / 218,370 — —
EdgeEdge
 99.84% 143,234 / 143,465 100.0% 1,363 / 1,363 — 99.22% 4,207 / 4,240 98.92% 643 / 650
FirefoxFirefox
 96.02% 51,184 / 53,306 99.99% 7,434 / 7,435 — 0.0% 0 / 90 98.44% 5,871 / 5,964

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,665 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,264 / 845,461 99.81% 96,955 / 97,135 — 99.66% 638,758 / 640,908 98.29% 41,953 / 42,681
SafariSafari
 — 99.83% 46,441 / 46,518 99.98% 212,761 / 212,801 — —
EdgeEdge
 99.99% 139,442 / 139,452 100.0% 1,326 / 1,326 — 100.0% 4,150 / 4,150 99.07% 640 / 646
FirefoxFirefox
 99.97% 51,542 / 51,557 99.97% 7,192 / 7,194 — 0.0% 0 / 85 98.35% 5,654 / 5,749