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Youtube Karaoke

Attenuate vocal on youtube Music videos.


  • Download TamperMonkey for Chrome (maybe firefox too, didn't test)
  • Go to and click the install button
  • Once installed, you should see this in the TamperMoney extension
    complete setup
  • Find a mv on youtube and test it out
    • If you don't see the mic icon, try refresh the page.
  • Accept microphone permission notification
    • There is a noticeable delay when connecting the mic via browser.
    • The ideal way is to connect the mic with a zero latency audio interface

How it looks on your Youtube Player

how it look


  • Support center cut
  • Support left or right cut from 90s KTV videos
  • Support mic gain if mic is connect via browser
  • Support per song setting save to localStorage (5000 tracks by default)

Experimental Features (requires an API key)

  • Save setting to cloud
  • Automatically load your setting from cloud
  • Search other tracks from cloud, instead of youtube, for official MVs


Not all songs are compatible with this plugin.

Orignal MVs usually work the best, kind of... except snares sound funny / missing (林俊傑 JJ Lin - 修煉愛情 Practice Love) (Timbaland - Apologize ft. OneRepublic)

Too many details lost with rock/metal or beats heavy songs (Linkin Park - In the end) (Avril Lavigne - Complicated)

Snare sounds funny in raps... in fact, many parts sound funny lol. (Eminem - Without Me) (Childish Gambino - This Is America)

It's not able to cut certain part of the vocal due to the way it mixed. (Japanglish Song!【Tokyo Bon東京盆踊り2020】Namewee 黃明志 Ft. Meu Ninomiya) (Evanescence - My Immortal)

The result from concerts MVs are usually not as good. (Hins Cheung - 張敬軒 -《櫻花樹下》(Live)) (Adele - Set Fire To The Rain (Live at The Royal Albert Hall))


Center vocal attenuation functions made by Richard Stanton

This software licensed under GNU General Public License v3.0.