About Touch-Screen-Test.com
Your Complete Suite of Free Screen Diagnostic Tools
What is Touch-Screen-Test.com?
Touch-Screen-Test.com is a free online screen testing platform offering multiple professional-grade diagnostic tools. We help millions of users test their devices for touch responsiveness, dead zones, stuck pixels, backlight bleeding, and display refresh rates , all from a web browser with no app installation required.
Our suite of tools works on all devices: iPhones, Android phones, Samsung Galaxy, iPads, tablets, laptops, desktop monitors, and smart TVs. Whether you're verifying a new purchase, checking a used device, or diagnosing a problem, we provide instant, accurate results completely free of charge.
Why We Created These Tools
Screen issues are frustrating and hard to diagnose. Users often face problems like:
- Dead zones where touch doesn't register , common after drops or screen replacements.
- Ghost touches where the screen activates without input , a sign of hardware failure.
- Stuck or dead pixels appearing as colored or black dots on the display.
- Backlight bleeding visible as light patches on black backgrounds.
- Incorrect refresh rates causing choppy scrolling or gaming performance issues.
Before spending money on repairs or replacements, you need to identify the exact problem. Our diagnostic tools help you understand what's wrong, document issues for warranty claims, and in some cases (like stuck pixels), even fix problems yourself.
Our Screen Testing Tools
We offer five specialized tools, each designed to diagnose specific screen issues:
Touch Screen Test
Our flagship tool for testing touch input accuracy, multi-touch capability, and touch responsiveness. Visualizes every touch point with color-coded circles and real-time coordinates. Perfect for testing iPhones, Android phones, tablets, and touch-enabled laptops. Try the Touch Screen Test →
Dead Zone Test
An interactive grid-based test that maps your entire screen for unresponsive areas. Drag your finger across all squares , any that remain white indicate dead zones where the touch digitizer has failed. Essential after drops, repairs, or when buying used devices. Try the Dead Zone Test →
Screen Display & Color Test
Cycles through solid colors (white, black, red, green, blue) to reveal dead pixels, stuck pixels, backlight bleeding, and color uniformity issues. The black screen test is particularly important for checking IPS glow and light leakage on new monitors. Try the Screen Display Test →
Pixel Fixer (Stuck Pixel Repair)
A repair tool that uses rapid RGB color cycling to attempt to fix stuck pixels. Position the flashing box over stuck pixels and run for 10-30 minutes. While dead pixels (black) rarely respond, stuck pixels (colored) can often be fixed using this method , potentially saving you a costly screen replacement. Try the Pixel Fixer →
Refresh Rate Test
Measures your display's actual refresh rate in Hz using browser animation APIs. Confirms whether you're getting 60Hz, 90Hz, 120Hz, 144Hz, or higher. Essential for gamers verifying monitor performance and phone users checking ProMotion/high-refresh displays on iPhone 13 Pro and newer or Android flagships. Try the Refresh Rate Test →
Why Choose Our Tools?
100% Free, Forever
All tools are completely free with no hidden fees, premium tiers, or paywalls. We believe essential diagnostic tools should be accessible to everyone.
No Download Required
Everything runs in your web browser. No apps to install, no software to download, no system permissions required. Works instantly on any device with a modern web browser.
Universal Compatibility
Tested and optimized for iOS Safari, Android Chrome, Windows, macOS, Linux, and ChromeOS. Works on phones, tablets, laptops, desktop monitors, and smart TVs.
Complete Privacy
All tests run 100% client-side in your browser. We never see, store, or transmit your touch data, screen information, or any personal details. Your diagnostics are completely private.
Professional-Grade Results
Our tools use the same methods employed by professional repair technicians. Results are accurate enough to document for warranty claims, insurance purposes, or repair shop consultations.
How to Use Our Tools
Getting started takes seconds:
- Choose Your Test: Select the appropriate tool from our navigation menu or homepage , Touch Screen Test, Dead Zone Test, Screen Display Test, Pixel Fixer, or Refresh Rate Test.
- Start Testing: Most tests begin immediately or with a single button click. Enter fullscreen mode for the most accurate results.
- Follow the Instructions: Each tool includes detailed guidance on what to do and what to look for during testing.
- Document Issues: Screenshot or screen-record any problems you find. This documentation is valuable for warranty claims and repair consultations.
- Try Related Tools: If you find one issue, related problems may exist. For example, if the Dead Zone Test reveals touch problems, also run the Screen Display Test to check for visual defects.