White Screen

Free browser tool to test monitors for dead pixels & more

What it does

White Screen is a free, browser-based monitor testing tool — no downloads, no sign-ups. Use it to: 🔴 Detect dead or stuck pixels with solid color screens 💡 Spot backlight bleed using a full black screen 🎨 Check color accuracy and gradient rendering 📐 Download white/black/color screens in 1080p, 2K, 4K, or 8K Works on any browser, any OS. Fully client-side — your data never leaves your device.

Does a similar job

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