About MonitorTest.im

MonitorTest.im is a browser-based display testing site for quick visual checks on monitors, laptops, phones, tablets, TVs, and projectors.

The site focuses on practical fullscreen patterns: dead pixels, stuck pixels, backlight bleed, screen uniformity, brightness, contrast, gamma, color banding, text clarity, response time, ghosting, refresh rate, and solid color screens.

What the site is for

• Checking a new monitor during the return window
• Inspecting a used display before purchase
• Tuning brightness, contrast, gamma, and sharpness for everyday use
• Comparing laptops, tablets, TVs, and external monitors
• Learning which test to run for a specific screen problem

What the site is not

MonitorTest.im is not a lab measurement tool and does not replace hardware calibration. Browser patterns are useful for visual inspection, but color-critical work still needs a colorimeter and controlled lighting.

Privacy-first baseline

The core tests run in the browser and do not require signup, uploads, payments, or private device access. MonitorTest.im uses lightweight site analytics to understand page usage and improve the tool experience, but the display test patterns themselves run locally in the browser.