Keyboard Cleaner

It provides a full‑screen overlay that blocks input from the keyboard while keeping the display visible, allowing users to clean their keys without risking accidental commands or data loss. The overlay intercepts all keystrokes except the quit shortcut, so work in open applications remains untouched. The program runs as a universal binary on macOS, supporting both Intel and Apple‑silicon Macs, and works across multiple monitors.

The utility is targeted at anyone who needs a quick, temporary safeguard for their desktop—such as developers, writers, or anyone who frequently cleans their keyboard or wants to prevent unintended input from pets or children. Because it is a lightweight 32 kB app, it launches quickly and can be toggled on or off without closing other programs.

Its distinctive behavior is the combination of a black screen shield with complete keystroke interception, implemented as a small, free, notarized macOS application. The design avoids complex graphics work while still providing a reliable way to pause keyboard input while preserving the visual state of the desktop.