DisplayMaster is a professional-grade monitor testing tool that runs entirely in your browser. Whether you just unboxed a new display or want to check an existing one, DisplayMaster gives you everything you need to verify screen quality in minutes. Key Features:

🔴 Dead Pixel Detection — Cycle through solid color screens (red, green, blue, black, white) to instantly spot stuck or dead pixels

💡 Backlight Bleed Test — Use a full black screen in a darkened room to reveal uneven backlight bleeding around screen edges

🎨 Color Accuracy Test — Verify gradient rendering and color uniformity across your entire display

⚡ No Installation Needed — Works on any modern browser, on any operating system

🔒 Privacy-First — Fully client-side, no data is collected or uploaded

DisplayMaster is ideal for consumers receiving new monitors, PC builders doing quality checks, and professionals who need color-accurate displays for design or video work. Free to use. No account required. Works on Windows, macOS, Linux, and Chromebook.