Nightcores YouTube videos on the fly.

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What is Nightcorer?

Nightcorer is a unique Chrome extension that changes the pitch and tempo of any YouTube video to create a Nightcore effect. With adjustable settings, it can speed up videos from 1.00 to 1.50 times with the slider, or between 0.50 and 2.00 for more adventurous users. An 'anime shader' effect is also added for further authenticity. Note: Some VEVO videos may experience pitch issues which can be resolved with a refresh. User settings are saved to Chrome's local storage for convenience.

Stats date:
Rating: 3.84 (19)
Version: 1.1.2 (Last updated: 2017-02-11)
Creation date: 2017-02-10
Manifest version: 2
  • storage
Size: 12.59K
Risk impact: Moderate risk impact
Risk likelihood: Very low risk likelihood

Other platforms

Not available on Firefox
Not available on Edge

Refresh the tab to get it to work sometimes!

Raises the pitch and tempo of YouTube videos by an adjustable amount so that it becomes nightcore (unless it was already nightcored in which case it doesn't really 'become'). And I mean the looser definition of nightcore: it works on all YouTube videos, not just hands up/hardcore/trance/etc. genres. Keeping up with the theme, an anime shader is applied to all videos while the extension is active (not really).

You can only speed it up 1.00 to 1.50 times with the slider since most nightcore is about 1.17 to 1.27 times the pitch and tempo of the original. You can also enter a value between 0.50 and 2.00 by clicking on the speed indicator if you'd like to go beyond the normal bounds.

Note: Sometimes the pitch doesn't work. This is usually on the VEVO videos. If you refresh the page after a bit it should work for the video (the audio is probably cached at that point). Also, if it ever sounds wobbly, turn the extension off and then back on.

The read and write permission only reads and writes to chrome's local storage. This is so that the speed and onness (it's not a word — look it up) is saved.


All feedback is welcome.


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User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Cool idea
  • Works
  • Useful for YouTube videos
  • Poor audio quality
  • Poor pitch-tempo aspect ratio
  • Limited settings and inconsistent functionality
Most mentioned
  • Works
  • Poor audio quality
  • Limited functionality
View all user reviews
Risk impact

Nightcorer may not be safe to use and it requires some risky permissions. Exercise caution when installing this extension. Review carefully before installing.

Risk likelihood

Nightcorer has earned a good reputation and can be trusted.

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