Monitor Test: Check Every Part of Your Display
Run a full monitor test right in your browser - no download, no install. Pick a single test below, or work through them in order the way a careful buyer checks a new monitor.
Choose a Test
Not sure where to start? Begin with the dead pixel test, then work down the list.
Dead Pixel Test
Cycle full-screen colors to find dead, stuck and hot pixels on any screen
White Screen
Pure white full screen for display testing and screen cleaning
Black Screen
Pure black full screen for testing dark areas and contrast
Backlight Bleed Test
Check your monitor for backlight bleed and IPS glow with a full-screen near-black test
Brightness Test
Check black and white levels, gamma and brightness uniformity with test patterns
Contrast Test
Check text contrast ratios against WCAG and preview how colors look with color vision deficiencies
Response Time & Ghosting Test
Check your monitor for ghosting and motion blur with a moving on-screen pattern
Response Time & Ghosting Test
Refresh rate, ghosting, and response-time checks for competitive play.
Monitor Buying Guide
What to check before you buy a monitor - and before you return one.
Test Before You Return It
The complete checklist to run the day your monitor arrives, before the return window closes.
What a Browser Test Can (and Can't) Tell You
Browser-based tests are genuinely useful, but they have real limits. Here's what to expect before you trust the results:
What can a browser-based monitor test detect?
Dead and stuck pixels, color casts, backlight uniformity and bleed, gradient or color banding, and obvious brightness or contrast problems - a solid-color or gradient screen reveals all of these clearly.
What can't a browser-based monitor test measure?
Calibrated color accuracy (Delta-E), true response time in milliseconds, exact HDR peak brightness, and input lag all require a colorimeter, a high-speed camera, or dedicated test hardware. We won't claim a browser test measures these precisely - use it to spot likely issues, not to replace lab equipment.
Do not see your brand?
All monitor tests work with any brand. Use our general display tests for comprehensive monitor evaluation.
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