Screen Tester

Free online screen and display testing tool

Screen Tester Introduction

Screen Tester is a free online tool for testing and checking your computer, laptop, and mobile display. Run multiple screen tests directly in your browser, including dead pixel testing, color testing, brightness and luminance checks, contrast and color range tests, gamma calibration, screen patterns, and other display diagnostics. No software installation is required. Screen Tester helps users identify display issues, check screen quality, and test different aspects of their monitor or device quickly and easily from any modern web browser.

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