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Codec: avc1.420c3d

85.4% Encoder Support
53,851 of 63,060 sessions supported encoding
85.36% Decoder Support
10,194 of 11,943 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 63,060 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.73% 27,564 / 27,639 99.73% 4,391 / 4,403 — 99.64% 12,201 / 12,245 97.99% 1,605 / 1,638
SafariSafari
 — 2.15% 35 / 1,628 1.8% 126 / 7,007 — —
EdgeEdge
 99.98% 5,080 / 5,081 100.0% 50 / 50 — 100.0% 106 / 106 100.0% 10 / 10
FirefoxFirefox
 94.96% 2,074 / 2,184 100.0% 291 / 291 — — 98.62% 285 / 289

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,943 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.94% 5,151 / 5,154 99.86% 704 / 705 — 99.83% 2,331 / 2,335 98.77% 403 / 408
SafariSafari
 — 3.75% 11 / 293 2.27% 32 / 1,409 — —
EdgeEdge
 100.0% 1,017 / 1,017 100.0% 11 / 11 — 100.0% 31 / 31 —
FirefoxFirefox
 100.0% 392 / 392 100.0% 48 / 48 — — 100.0% 53 / 53