The notification sounds in Slack leave much to be desired. From harsh thumps to the word "hummus" spoken out loud—these are some seriously grating audio bites to take in throughout the day. A bad notification sound can make a simple message a stressful reminder that your attention has been interrupted. That's why we're here to help! Improve your workflow by adding a custom notification sound.

Slack doesn't officially support custom notification sounds. We can get around this by overwriting one of the existing Slack sound files. All you need is an mp3 file and about 5 minutes. In this guide, I'll show you how to set a custom Slack notification sound for both Windows and macOS.