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Codec: avc1.4d1432

84.9% Encoder Support
53,320 of 62,801 sessions supported encoding
99.92% Decoder Support
11,870 of 11,879 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 62,801 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.2% 27,526 / 27,748 99.95% 4,337 / 4,339 97.64% 11,804 / 12,089 97.79% 1,638 / 1,675
SafariSafari
2.51% 41 / 1,631 1.74% 120 / 6,908
EdgeEdge
99.9% 4,957 / 4,962 100.0% 52 / 52 98.95% 94 / 95 100.0% 10 / 10
FirefoxFirefox
95.51% 2,148 / 2,249 100.0% 264 / 264 0.0% 0 / 13 98.99% 294 / 297

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,879 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.98% 5,283 / 5,284 99.86% 700 / 701 100.0% 2,212 / 2,212 99.05% 417 / 421
SafariSafari
100.0% 276 / 276 100.0% 1,380 / 1,380
EdgeEdge
100.0% 966 / 966 100.0% 10 / 10 100.0% 26 / 26
FirefoxFirefox
100.0% 422 / 422 100.0% 45 / 45 100.0% 61 / 61