About Black Screen
The open, privacy-first display calibration and diagnostic suite built for modern screens.
Our Mission
Black Screen (blackscreenimage.com) was founded with a straightforward goal: to create the most intuitive, fast, and feature-rich display testing platform on the internet—completely free of cluttered advertisements, intrusive pop-ups, and paywalls.
Whether you are unboxing a brand-new OLED gaming monitor, inspecting a refurbished smartphone, testing for edge backlight bleeding in a dark room, or looking to record video proof of stuck pixels for a warranty replacement (RMA), Black Screen gives you immediate access to precision hardware diagnostic tools right in your web browser.
Why We Built a Better Screen Tester
Automated Hardware Tests
Instead of static color pages, we engineered 8 automated diagnostic modules (Dead Pixel Scanner, Backlight Bleed Inspector, OLED Burn-in Strobe, 8-bit/10-bit Banding, Contrast Matrix, and Motion Blur UFO test).
Free Screen Video Recording
Easily capture test sessions directly to high-definition video files on your computer. Perfect for sending conclusive defect proof to monitor manufacturers and customer support.
100% Client-Side & Private
All video capture, color rendering, and image generation runs locally in your browser memory. We never track your display activity or store your video recordings.
Modern Design System
Crafted with clean typography, smooth transitions, keyboard hotkeys, Screen WakeLock integration, and seamless Light and Dark modes.
Our Core Commitments
- Always Free & Open: We believe essential hardware diagnostic tools should be universally accessible without subscriptions or paywalls.
- Zero Distractions: No flashing third-party banner ads or deceptive download buttons.
- Cross-Platform Compatibility: Seamlessly works on Windows, macOS, Linux, ChromeOS, iOS, Android, and Smart TVs.