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I would like to split the Notepad++ window so that I can edit two files side by side.

How can I do this in Notepad++?

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up vote 220 down vote accepted

In Notepad++ 5.7 you can right-click on a tab and select "Move to Other View". You can also select "Clone to Other View" if you want to have the same file open more than once and see different parts of it. You can right-click the divider line and rotate the views to be either side-by-side or top-and-bottom.

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That is cool - I started using Notepad++, but haven't really looked closely at what it can do. – John C Nov 28 '10 at 23:25
Under plugins, there's also a handy COMPARE feature. :D – Rob Sep 21 '11 at 19:37
@Rob I don't know about the recent Notepad++s, but I had to 'manually' install the Compare plugin via Plugin Manager. (I'm an 'old' Notepad++'er.) – Mateen Ulhaq Sep 24 '11 at 4:14
It came preinstalled about 6 months ago, at least. – Rob Sep 27 '11 at 14:06
+1 for right click on the divider & rotate. Was looking for this for ages thanks – Davos Feb 18 at 22:56

As mentioned in the comments, there's a very handy compare plugin for Notepad++, that allows side-by-side comparison, indicating discrepancies.

(Click image to enlarge)

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Beware that on large files (5000 lines +), using this plugin and then modifying the files can lead to some severe file corruption. Not sure of the exact conditions that causes it, but this cost me to redo a lot of work recently – neelsg Sep 12 '14 at 10:46

As well as moving or cloning the document to a separate view pane, you might want them to scroll together too, in a truly "side by side" manner. This makes it much easier to perform line-by-line comparison, for instance.

To achieve this, go to View -> Synchronize Vertical Scrolling (or Synchronize Horizontal Scrolling).

This may be sufficient for many, without requiring the need for the Compare plugin others have mentioned.

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You must have the same zoom in both document. – MUY Belgium Apr 23 '14 at 13:11

It is pretty straightforward, just go to: View → Move/Clone Current Document → Clone to Other View.


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You can even compare two files side by side (without changing the view) using COMPARE plugin, as long as you have two files at the end of the tab. Here is an example.

The keyboard shortcut for comparing is ALT+D. To Clear comparison, CTRL+ALT+D.

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