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I had Notepad++ 7.5.8 (npp.7.5.8). It does not have plugin manager; previous versions used to have it. I followed these instructions.

I downloaded it from https://sourceforge.net/projects/npp-compare/

ComparePlugin.readme.txt

To install copy ComparePlugin.dll into the plugins directory C:\Program Files\Notepad++\Plugins

I did not work. Plugins menu did not have ComparePlugin. It had other plugins though.

Yan Khonski
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10 Answers10

11

2019-02-21

Alternative

Notepad++ version 7.6.2 x64 bit.

Plugins -> enter compare and install it.

enter image description here

Yan Khonski
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4

Open Notepad as Administrator Settings > Import > Import plugin(s)

enter image description here

Then select the ComparePlugin.dll, now notepad should prompt you a message to restart your notepad in order to make the change take effect

Re-open your notepad now, the compare plugin should be appear at Plugin now :)

Tomer Shetah
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2

2020-05-27

Update: Alternative

Notepad++ version 7.8.6 x64 bit.

click Plugins on Menu bar -> click Plugins Admin... -> type Compare in search bar -> check Compare checkbox -> click Install button -> click Yes on dialog box.

Taz
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2018-10-25

If you use 64 bit Notepad++, use 64 bit version of the plugin.

After I have struggled for some time, I found a solution.

1) I updated Notepad++ from 7.5.8 into 7.5.9. After I applied * ComparePlugin.dll* which I have downloaded from the link in the question, it showed me an error that I used 64 bit version of Notepad++ and 32 bit version of the plugin.

2) I got the plugin of 64 bit version from git hub page. I put the ComparePlugin.dll into the plugins directory.

Yan Khonski
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1

The plugin directory differs in different NPP versions, and installations. Be sure that you placed your plugins into the right folder.

There is a feature from NPP-v7.6.4 to get this folder:

Plugins -> Open Plugins Folder...

betontalpfa
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I know this thread is old, but in case anyone stumbles across this still needing an answer I have a weird fix.

For some reason my installation is limiting the number of plugins I can have to a max of 3. So when I uninstalled 'Mime Tools' and then tried to install the plugin I wanted (Compare) it worked.

Not sure why Notepad++ is doing this but it temporarily solves the issue if you have a specific plugin you need to use.

Dharman
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user225
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Update (2022-09-22): use the ComparePlus plug-in, and not the obsolete Compare plug-in. It has many more features and work much better in dark mode.

To install it:

enter image description here

Demo:

  1. Open 2 files side-by-side
  2. Plug-ins -> ComparePlus -> Compare:

enter image description here

Features:

enter image description here


The Compare plug-in is no longer maintained:

Compare plugin will not be supported anymore (at least by me) because I consider it obsolete and because (as Peter Jones said) I am working on another plugin - ComparePlus that is Compare plugin’s successor.

For example, the Compare plug-in doesn't show the compared text clearly with dark mode:

enter image description here

Franck Dernoncourt
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If you are on your work machine and the domain is blocked by your network administrator, an easy fix is to disconnect from your company intranet, connect to the internet via wifi or using your mobile phone usb tethering. Then try to install the plugin, it will work.

0
  1. 07.27 Both of following versions seemed not compatible each other: npp.8.4.2.Installer.x64.exe (https://notepad-plus-plus.org/downloads/v8.4.2/) and ComparePlugin.v1.5.6.2.bin.zip (https://sourceforge.net/projects/npp-compare/postdownload).

NPP was installed in a 64bit machine within an isolated netwwork. Then the instruction as given in the readme was followed. But it failed to detect Compare Plugin.

ComparePlugin_v2.0.0_X64.zip will be checked today.

0

First of all, you have to check the version between "Notepad++" and "ComparePlugin".

Please note: (see Unable to install Compare Plugin - scroll down for "PeterJones")

  • For Notepad++ v8.2.2 an newer, you should installing ComparePlugin v2.0.0.
  • For Notepad++ v7.7 thru Notepad++ v8.2.1, you nedd to use ComparePlugin v2.0.1.
  • If you have older than Notepad++ v7.7, I highly recommend updating Notepad++ first, but you can use ComparePlugin v2.0.0 for such ancient Notepadd++ version.

Download link: ComparePlugin