Screen Tester
Professional screen testing tool to identify dead pixels, stuck pixels, and analyze display characteristics. No installation required - test directly in your browser.
No InstallationCross-PlatformProfessional GradeFree to Use
Screen Testing Features
Automatic Detection
Advanced algorithms detect dead, stuck, and dim pixels with confidence scoring
Manual Marking
Click to mark problematic pixels with different colors for various issue types
Screen Analysis
Detect resolution, pixel density, color depth, and other display parameters
Privacy & Security
Your screen testing is performed entirely in your browser. No screenshots are captured, stored, or transmitted to our servers. All pixel analysis and testing data remains completely private on your device.