Test your screen, keyboard, and mouse issues in one place
PixelCheckup provides comprehensive test tools for your screen, keyboard, and mouse. Instantly detect issues such as dead pixels, ghosting, double-clicks, scroll stutter, and key detection problems.
Monitor tests, keyboard tests, and mouse tests run entirely in your browser; no software download is required. It is a fast, free, and reliable hardware check platform.
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Dead Pixel Scan
Detect stuck/dead pixels with solid colors and contrast patterns; mark suspicious spots.
Ghosting Test
Watch the fast-moving strip; if trails/shadows remain, your panel has ghosting. Speed and background are adjustable.
Lightweight Report
Download the pixel positions you marked as JSON/CSV; screen metadata is included.
OLED Burn-in Test
Check permanent image retention (burn-in) on your screen with gray tones and moving patterns. The test progresses through automatic stages and takes about 1–2 minutes. For the most accurate result, run it in fullscreen mode.
Keyboard Test
Measure your keyboard’s responsiveness and accuracy with key detection, anti-ghosting (N-key rollover), and typing speed tests.
Mouse Test
Analyze your mouse sensor behavior and click performance with mouse trail, double-click, scroll, and CPS (click speed) tests.
Get Started
Shortcuts: Space=Play/Pause · ←/→=Color · F=Fullscreen · ESC=Exit
Most Tested
Top 10Total counts by brand based on user reports. “Model / Year / Ghosting” is shown according to the latest report. The Comments column shows the number of reports received for that brand.
| # | Brand | Model | Year | Ghosting | Comments |
|---|
Frequently Asked Questions (FAQ)
What is a dead pixel, and how is it different from a stuck pixel?
A dead pixel is a completely non-working pixel that usually appears black. A stuck pixel is a pixel that remains fixed on the same color. PixelCheckup helps you detect both.
What does the ghosting test do?
The ghosting test uses a fast-moving strip to measure whether your screen leaves trails/shadows in moving images.
Do I need to download a program?
No. PixelCheckup runs entirely in your browser and requires no installation.
How often should I run the OLED burn-in test?
If you use an OLED screen, regular checks are recommended. PixelCheckup uses special gray tones and moving patterns to detect burn-in marks.
What does the keyboard test do?
The keyboard test shows whether the keys you press are detected correctly, and helps you detect issues such as ghosting and N-Key Rollover. It is especially ideal for measuring gaming performance.
What can I check with the mouse test?
The mouse test helps you check cursor stutter, double-click issues, scroll wheel problems, and CPS click speed. This lets you quickly notice hardware issues related to the mouse sensor and buttons, before they become harder to diagnose.
Brief information about PixelCheckup
Screen Tests with PixelCheckup
PixelCheckup is a fast browser-based tool for dead pixel testing and ghosting testing. Check screen issues, including OLED burn-in, in seconds.
After the tests, you can review user submissions on the Reports page and learn more about dead pixels.
What Is PixelCheckup? How Does It Work?
PixelCheckup is a free browser-based testing platform developed to help computer and mobile device users quickly and reliably identify hardware issues related to screens, keyboards, and mice. No software download is required; all tests run directly in the web browser.
The Dead Pixel Test, Ghosting Test, and OLED Burn-in Test on the platform help detect image-related issues on monitors and display panels. Users can inspect their screens in detail with solid colors, moving patterns, and special test scenes.
PixelCheckup also offers keyboard and mouse performance tests. With the Keyboard Test, you can check key detection, ghosting and double-press issues, and whether simultaneous key presses are detected correctly.
With the Mouse Test, you can test click detection, double-click problems, scroll wheel behavior, CPS (Clicks Per Second), and cursor movement in detail.
Tests on PixelCheckup are based entirely on user observation. The site is not directly affiliated with any hardware brand or manufacturer. Test results are for informational purposes and provide users with a preliminary evaluation of their hardware.
Users can download test results in JSON or CSV format, report them, and make comparisons.
The Guides (Blog) section of PixelCheckup includes detailed, SEO-friendly, and up-to-date educational content about topics such as dead pixels, panel types (IPS, VA, TN), OLED display technologies, and keyboard and mouse performance issues. These guides are designed to help users make more informed hardware decisions.
PixelCheckup values transparency, user privacy, and accessibility. The privacy policy, cookie policy, and terms of use are presented clearly. All content and testing tools are designed with user experience as the priority.
Who Is PixelCheckup For?
PixelCheckup is designed for anyone who wants to quickly and reliably detect hardware issues with computers, monitors, and peripherals. Since the tools run directly in the browser without requiring a program download, they serve many different user profiles.
🎮 For Gamers
On high-refresh-rate monitors, ghosting, dead pixels, key detection delay, or mouse click problems can seriously affect gaming performance. PixelCheckup helps gamers inspect their hardware in detail with ghosting tests, keyboard anti-ghosting and key detection tests, and mouse click, scroll, and CPS measurements.
💻 For Everyday Computer Users
If you bought a new monitor, laptop, keyboard, or mouse, you may want to make sure it works properly. PixelCheckup helps everyday users quickly check their hardware with dead pixel and stuck pixel tests, OLED burn-in checks, and basic keyboard and mouse function tests.
🧑💼 For Office and Remote Workers
For people who spend long hours in front of a screen, display quality and reliable input devices are important. PixelCheckup helps detect visual problems and hardware faults early before they affect productivity.
🛠️ For Technical Services and Pre-Purchase Checks
Technical services, second-hand product sellers, and users who want to test a device before returning or replacing it can use PixelCheckup as a fast preliminary inspection tool. Test results can be downloaded and reported in JSON/CSV format.
📱 For Tech Enthusiasts and Information Seekers
PixelCheckup does not only provide testing tools; it also informs users through blog and guide content about topics such as what dead pixels are, what causes ghosting, and the differences between IPS, VA, TN, and OLED panels.