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Codec: avc1.641432

86.29% Encoder Support
277,152 of 321,174 sessions supported encoding
99.93% Decoder Support
269,794 of 269,984 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,174 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 143,274 / 144,344 99.9% 19,764 / 19,784 — 96.27% 61,352 / 63,731 97.56% 7,546 / 7,735
SafariSafari
 — 2.04% 173 / 8,480 1.4% 437 / 31,217 — —
EdgeEdge
 99.8% 31,084 / 31,145 100.0% 369 / 369 — 97.5% 974 / 999 96.83% 61 / 63
FirefoxFirefox
 95.98% 9,393 / 9,786 100.0% 1,353 / 1,353 — 0.0% 0 / 39 98.39% 1,283 / 1,304

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,984 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,893 / 121,927 99.92% 16,109 / 16,122 — 99.99% 53,731 / 53,739 99.03% 6,450 / 6,513
SafariSafari
 — 99.9% 7,120 / 7,127 99.98% 25,564 / 25,570 — —
EdgeEdge
 100.0% 27,088 / 27,088 100.0% 322 / 322 — 100.0% 918 / 918 98.36% 60 / 61
FirefoxFirefox
 100.0% 7,972 / 7,972 100.0% 1,100 / 1,100 — 0.0% 0 / 27 98.81% 1,076 / 1,089