Key Remapper for Windows

Product overview

Key Remapper from ATNSOFT is a commercial Windows utility that lets you redefine how mice and keyboards behave. It focuses especially on custom mouse controls but also supports keyboard remapping. A free trial is available so you can try the program before buying one of the available licenses, which vary by the number of users or machines.

Remap and extend mouse behavior

Use the app to change what each mouse button does — assign new functions, disable buttons, or make a single press produce a double-click. You can combine mouse inputs with keyboard modifiers (for example, Ctrl, Shift, or Alt) to create context-sensitive actions, and apply those changes either globally or only for selected applications or games.

Tackle keyboard limitations without hardware swaps

Rather than replacing a malfunctioning keyboard, you can reassign keys to keep working. The software supports swapping keys, mapping missing keys to other inputs, and assigning mouse actions to keyboard buttons so you have multiple ways to control the pointer and invoke shortcuts.

Control, revert, and scope changes safely

• Apply remapped controls temporarily without permanently changing system-level key maps so you can revert quickly.
• Limit remapping or disabled inputs to specific programs or even particular windows, keeping other apps unaffected.
• Emulate mouse clicks and key presses programmatically, and swap functions between inputs (for example, exchange the roles of a mouse button and a keyboard key).
• Changes take effect immediately without requiring a reboot.

Key features at a glance

• Per-application and per-window restriction for remapped inputs
• Temporary, non-system-wide reassignments that are easy to undo
• Modifier-key combinations to expand mouse functionality
• Emulation of clicks and keystrokes plus the ability to swap two controls
• Trial version followed by tiered licensing based on number of users
• Focused design for mice while still supporting keyboard remaps

Why choose it

If you need a tool that emphasizes mouse customization while still handling keyboard reassignment, Key Remapper is a solid, cost-effective option. It avoids overwriting permanent system mappings and doesn’t force a restart to apply changes, which makes testing different setups quick and low-risk.