Learn how to compare Files in Notepad++.

Here are the step to enabling your file compare plugin.

1) Click on Plugins–Plugins Admin….

Xybernetics Notepad++ Plugins Admin

2) Select “Available” tab. Then place a check mark on the Compare plugin. After that, click on the install button button.

Xybernetics Notepad++ Install Compare Plugin

3) The Notepad++ will restart. If it does not restart, please close the Notepad++ and re-launch the Notepad++.

4) Once the Notepad+ is launched, you can start using the compare plugin by click on the Plugin—Compare.

Xybernetics Notepad++ Compare Text Files

Reference