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Codec: avc1.4d0432

86.54% Encoder Support
276,720 of 319,753 sessions supported encoding
99.94% Decoder Support
268,696 of 268,844 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 319,753 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 142,819 / 143,843 99.88% 19,716 / 19,739 — 97.62% 61,958 / 63,469 98.17% 7,509 / 7,649
SafariSafari
 — 2.13% 182 / 8,562 1.57% 490 / 31,232 — —
EdgeEdge
 99.83% 30,607 / 30,659 100.0% 362 / 362 — 98.92% 1,007 / 1,018 98.46% 64 / 65
FirefoxFirefox
 96.06% 9,306 / 9,688 100.0% 1,311 / 1,311 — 0.0% 0 / 34 98.57% 1,306 / 1,325

VideoDecoder Support Matrix

Browser × Platform decoder support from 268,844 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,240 / 121,275 99.9% 16,089 / 16,105 — 99.99% 53,636 / 53,644 99.37% 6,458 / 6,499
SafariSafari
 — 99.94% 7,208 / 7,212 100.0% 25,614 / 25,615 — —
EdgeEdge
 100.0% 26,669 / 26,669 100.0% 319 / 319 — 100.0% 937 / 937 100.0% 55 / 55
FirefoxFirefox
 100.0% 7,940 / 7,940 100.0% 1,091 / 1,091 — 0.0% 0 / 22 99.26% 1,077 / 1,085