Screen Keys is an add-on that displays real-time keyboard and mouse inputs as an overlay in the Blender viewport. It tracks standard key presses alongside modifier combinations, as well as mouse clicks, scrolling, and cursor positioning. The display is highly customizable, allowing users to adjust the screen location, key size, opacity, colors, and fade-out timing. All settings and display toggles are managed through a dedicated sidebar panel, making it a practical tool for recording tutorials and demonstrating workflows.