About FreeScreenTest

What This Site Does

FreeScreenTest provides browser-based tools for checking common display issues: dead pixels, backlight bleed, gamma, contrast, refresh rate, text clarity, HDR support, viewing angle behavior, and input responsiveness.

The tools are designed for quick checks on monitors, laptops, tablets, phones, and TVs. They are useful before returning a new display, adjusting monitor settings, or documenting visible screen defects.

How Tests Work

Most tests run entirely in your browser using fullscreen color patterns, animation timing, local browser APIs, and optional local history saved on your device. Results are educational and can vary by browser, operating system, graphics settings, and display hardware.

For warranty or professional calibration decisions, always confirm results with the display manufacturer, retailer, or a calibrated measurement device.

Editorial Approach

Guides and test instructions are written to explain practical display concepts in plain language. When warranty or manufacturer policies are discussed, treat them as general guidance and verify current terms in your region before making a claim.