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dead-pixel-checker

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heretool / Dead-Pixel-Checker-Screen-Test

A lightweight, 100% browser-based display diagnostic tool to detect and fix dead or stuck pixels. Supports 4K, 8K, OLED, and mobile screens.

vanilla-javascript web-tool responsive-design screen-test monitor-test stuck-pixel-fixer dead-pixel-checker

Updated Jun 5, 2026
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