Zapp
Zapp is a bit more of a niche WhatsApp web utility, in that it enables you to change the speed and the volume of audio recordings that you’re listening to through the app. It adds a new button to the toolbar, which you can click to view the interface. Volume can be adjusted between zero and 100 percent, and recordings can be read from 0.5x speed up to 2x speed, which is very helpful if you have a lot of them to get through on WhatsApp.
Download Zapp for Chrome and for Windows.
