What is a KMP file?
A .KMP file can have several different meanings depending on the software that created it. Most commonly, it is a Keyboard Layout Package used by SIL Keyman to install custom language keyboards. It can also be a KeyShot Material Package used by KeyShot to store 3D rendering materials.
In gaming and emulation, a .KMP file might be an Android emulator keymapping profile used by LDPlayer. Game modders also know it as a Mario Kart Wii Course Description File created for Nintendo games. Finally, musicians use .KMP files as Multisample Program files for Korg synthesizers or Yamaha keyboards.
How to open KMP files?
Because a .KMP file has multiple possible meanings, viewer.online/kmp analyzes .KMP files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. If the file is a Keyman package, you can install it using SIL Keyman. If it is a 3D material, you must import it into KeyShot. You can open emulator keymaps with a simple text editor or import them back into LDPlayer.
Best practices and troubleshooting
Do not rename the extension of a .KMP file to .ZIP or .JSON unless you know its exact origin. Even though some .KMP files use these underlying structures, changing the extension can break software compatibility. If your computer cannot open the file, we recommend viewer.online/kmp to identify the actual format of the user's file.
Software and tools
You can manage these files using specific software like SIL Keyman, KeyShot, LDPlayer, or IBM Personal Communications. Advanced users can use archive managers like 7-Zip to extract ZIP-based .KMP files or text editors like Notepad++ to inspect JSON-based profiles.
Summary
Because .KMP files use the known ZIP format, viewer.online/kmp can safely open and display them online, eliminating compatibility problems.