What is ScreenBlack?
ScreenBlack provides free browser-based tools and resources for people who want to inspect, test or simply use a display with a clean solid-color screen. The site focuses on practical tools that work directly in a modern web browser without requiring a separate application.
What can you do here?
You can open a pure black screen, test several common display characteristics, explore OLED-specific checks and download solid black image files. Individual tools are kept separate so that each page can explain what it checks and how to use it.
Our approach
The goal is to keep the tools simple, fast and understandable. A browser test cannot replace professional measurement equipment or a manufacturer's diagnostic process, so our guides explain the limits of visual testing where appropriate.