Device tests that explain themselves.
DeviceCheckup is a free, independent collection of browser-based diagnostics and practical troubleshooting guides. You can use the tools without creating an account.
What we help you test
Use the diagnostic tools to check available browser input, output and device APIs. Test microphone response, webcam preview, screen patterns, keyboard events, touch input and network response to this website.
What we cannot prove
A browser cannot reliably certify the health of every hardware component. Audio tests depend on what you hear, display tests depend on what you see, and some permissions and sensors are limited by browsers or operating systems.
How to use the results
Run a tool, read its limitations, follow the matching repair guide where relevant, and retest. Stop and seek qualified help for damaged batteries, overheating, electrical hazards or physical damage.
Our commitments
No mandatory account, no paid diagnostics, and no camera or microphone recordings uploaded to this website by our testing code. See our privacy policy and testing methodology.