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Codec: avc1.4d1020

98.92% Encoder Support
62,205 of 62,885 sessions supported encoding
99.95% Decoder Support
12,032 of 12,038 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 3.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,885 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.18% 27,421 / 27,649 99.98% 4,356 / 4,357 — 97.57% 12,049 / 12,349 98.41% 1,551 / 1,576
SafariSafari
 — 100.0% 1,623 / 1,623 100.0% 6,853 / 6,853 — —
EdgeEdge
 99.86% 5,011 / 5,018 100.0% 51 / 51 — 97.27% 107 / 110 100.0% 10 / 10
FirefoxFirefox
 95.33% 2,103 / 2,206 100.0% 303 / 303 — — 99.63% 269 / 270

VideoDecoder Support Matrix

Browser × Platform decoder support from 12,038 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,292 / 5,294 100.0% 701 / 701 — 100.0% 2,324 / 2,324 99.02% 404 / 408
SafariSafari
 — 100.0% 253 / 253 100.0% 1,369 / 1,369 — —
EdgeEdge
 100.0% 1,019 / 1,019 — — 100.0% 37 / 37 —
FirefoxFirefox
 100.0% 427 / 427 100.0% 49 / 49 — — 100.0% 58 / 58