About GlitchCheck

GlitchCheck is a set of free tests that tell you whether your headphones, speakers, mouse, controller or screen is working, and what to do if it is not.

Every test runs in your browser. We do not record, upload or store your audio, video or button presses.

Each test gives you a clear result, not just raw numbers, and links to a step-by-step fix guide. We check fix guides against official device documentation and update them when menus change.

The tests and guides are made by The Nguyen. Read how we test and which real devices each tool was checked on.

Found a mistake? Tell us.