X, but it keeps getting faster or slower

Added on 24 Apr 2017, Last updated on 8 Oct 2022.

Version history

8 Oct 2022
Added start button, now works with autoplay-blocking

21 May 2017
Made speed an input-element

24 Apr 2017
Initial upload

Works in any modern browser. (recent versions of Chrome, Firefox, Safari or Edge)
Load audio file (filetype has to be supported by the browser):

Increase amount:

Speed: %