Professional Hardware Testing Tools
Fast • Accurate • Free
Detect screen defects, dead pixels, color issues, audio problems and input failures in minutes. Trusted by technicians, refurbishers and power users.
TestrHub Engine v3.0
PWA Active
Why professionals use TestrHub
- Accurate test patterns designed to reveal real hardware defects
- No installation — works directly in your browser
- Full-screen & distraction-free testing
- Free and accessible on desktop, laptop and mobile devices
Who is TestrHub for?
Repair technicians
Quickly diagnose screens, inputs and audio before or after repair.
Refurbishers & Resellers
Verify device quality before resale and reduce returns.
Gamers & power users
Detect ghosting, color banding, input lag and dead pixels.
Everyday users
Check a new or used device in minutes.
Available Testing Tools
Screen Test
Identify dead pixels, color accuracy issues, brightness uniformity and ghosting.
Open Screen Test