Free Hardware Diagnostics
Test Your Hardware.
Know What's Wrong.
Run comprehensive diagnostics on laptops, phones, and gaming controllers in your browser.
Controller Lab
Diagnose, test, and calibrate PlayStation, Xbox, and Nintendo controllers. Read raw HID data, test haptics, and check for stick drift.
Laptop / PC Diagnostics
Comprehensive suite for testing your computer. Includes Keyboard, Mouse, Microphone, Speaker, Webcam, Display, and Stress Test tools.
Phone Tester
Scan your iOS or Android smartphone for hardware defects. Test touchscreen digitizers, haptics, cameras, and dead pixels.
Why TechTest?
No Data Collection
All diagnostics and inputs are processed locally in your browser. We never collect device details or telemetry.
No Signup Required
Skip email inputs and credential setup. Start testing your hardware instantly with zero onboarding steps.
100% Free
Our tools are fully free. There are no premium paywalls, subscription requirements, or hidden tiers.
Open Source
Fully open-source codebase. You can audit, review, inspect, and contribute to our codebase on GitHub.