About DeviceJig

DeviceJig makes free tests for everyday hardware: screens, mice, game controllers, keyboards, speakers and headphones. They're for anyone checking a new purchase, chasing a fault or deciding whether to return something.

Most test pages show raw readings. We try to end every test with an answer: what it found, what that means, what to do next, and what a browser simply can't measure. We don't claim to repair anything, and we say so when a result depends on what you saw or heard.

The tests

• Dead Pixel Test
• Touch Screen Test
• Refresh Rate Test
• Double Click Test
• Scroll Wheel Test
• Mouse DPI Analyzer
• Mouse Polling Rate Test
• Controller Test
• Keyboard Test
• Speaker Test
• Headphone Test

DeviceJig is part of a small family of free tool sites, alongside CrispKit and MakerJig. It isn't affiliated with any device maker. Product names belong to their owners.

Who runs DeviceJig

Contact: hello@devicejig.com.