KDiff3 AlternativesDiff Tools & File Comparison Tools like KDiff3

KDiff3 is described as 'File and directory diff and merge tool' and is a very popular Diff Tool in the development category. There are more than 50 alternatives to KDiff3 for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best KDiff3 alternative is Meld, which is both free and Open Source. Other great apps like KDiff3 are WinMerge, Beyond Compare, P4Merge and Araxis Merge.

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KDiff3 alternatives page was last updated Dec 3, 2025

Meld
422 likes
Meld is an open-source, Python-based visual diff and merge tool that allows you to compare and edit files, supports syntax highlighting, and integrates with version control systems like CVS, Subversion, and Mercurial for dynamic diff updates. It works offline, is lightweight, portable, and ad-free.
52 Meld alternatives
Cost / License
Free
Open Source
Application types
Diff Tool
File Comparison Tool
Origin
Australia
Platforms
Windows
Linux
BSD
Python
GTK
+5
Is Meld a good alternative to KDiff3?

|
2comments
15users say it's a good alternative
Comments about Meld as an Alternative to KDiff3

Guest
Negative commentFeb 2, 2020
2
Meld isn’t as well-suited for syncing whole directory trees.
Review by a new / low-activity user.
Guest
Positive commentJul 29, 2020
0
Free, GTK-based, similar function.
Review by a new / low-activity user.
Most users think Meld is a great KDiff3 alternative.
Meld is the most popular Windows & Linux alternative to KDiff3.
Meld is the most popular Open Source & free alternative to KDiff3.
Meld is Free and Open SourceKDiff3 is also Free and Open Source
Meld is LightweightKDiff3 is not according to our users
WinMerge
556 likes
WinMerge is an open source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.
69 WinMerge alternatives
Cost / License
Free
Open Source
Application types
Diff Tool
File Comparison Tool
Origin
United States
Platforms
Windows
PortableApps.com
Wine
+4
Is WinMerge a good alternative to KDiff3?

|
11users say it's a good alternative
Beyond Compare
327 likes
File and folder comparison tool offering source control integration, 3-way merge support, and selective synchronization. Supports FTP, cloud, runs offline, uses simple commands for files, customization, and scripting for reporting. Lightweight, portable with CLI and built-in viewer.
70 Beyond Compare alternatives
Cost / License
Pay once
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
United States
Platforms
Mac
Windows
Linux
+3
Is Beyond Compare a good alternative to KDiff3?

|
10users say it's a good alternative
Most users think Beyond Compare is a great KDiff3 alternative.
Beyond Compare is the most popular Mac alternative to KDiff3.
Beyond Compare is the most popular commercial alternative to KDiff3.
Beyond Compare is Paid and ProprietaryKDiff3 is Free and Open Source
Beyond Compare is LightweightKDiff3 is not according to our users
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Code Compare
Free file and folder merge tool providing two-way comparison, Visual Studio and Atmel Studio integration, enhanced folder sync, syntax highlighting, batch operations, Intellisense, navigation by change type, command line support,...

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P4Merge
27 likes
P4Merge uses color coding to allow users to visualize the differences between file or images. It allows three-way merging among files, and shows side-by-side file/image comparison.
Cost / License
Free
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
United States
Platforms
Mac
Windows
Linux
Is P4Merge a good alternative to KDiff3?
Araxis Merge
43 likes
Merge is the visual file comparison (diff), merging and folder synchronization application from Araxis. Use it to compare and merge source code, web pages, XML and other text files with native application performance.
62 Araxis Merge alternatives
Cost / License
Pay once
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
United Kingdom
Platforms
Mac
Windows
+1
Is Araxis Merge a good alternative to KDiff3?
Kaleidoscope
21 likes
Use Kaleidoscope to spot the differences in text and image files. Review changes in seconds with the worlds most advanced file comparison application.
45 Kaleidoscope alternatives
Cost / License
Subscription
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
Germany
EU
Platforms
Mac
iPad
+7
Is Kaleidoscope a good alternative to KDiff3?
Kaleidoscope is the most popular iPad alternative to KDiff3.
Kaleidoscope is Paid and ProprietaryKDiff3 is Free and Open Source
Meld for OSX
11 likes
Meld is a visual diff and merge tool targeted at developers. Meld helps you compare files, directories, and version controlled projects. It provides two- and three-way comparison of both files and directories, and has support for many...
Cost / License
Free
Open Source
Application types
Diff Tool
File Comparison Tool
Platforms
Mac
Is Meld for OSX a good alternative to KDiff3?
Code Compare
18 likes
Free file and folder merge tool providing two-way comparison, Visual Studio and Atmel Studio integration, enhanced folder sync, syntax highlighting, batch operations, Intellisense, navigation by change type, command line support, and detailed control over merges.
54 Code Compare alternatives
Cost / License
Pay once
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
Czechia
EU
Platforms
Windows
+9
Is Code Compare a good alternative to KDiff3?
Diffchecker
15 likes
Diffchecker Pro enables you to compare various types of content, on your desktop or directly in the browser.
72 Diffchecker alternatives
Cost / License
Subscription
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
United States
Platforms
Mac
Windows
Linux
Online
+2
Is Diffchecker a good alternative to KDiff3?
Diffchecker is the most popular Web-based alternative to KDiff3.
Diffchecker is Paid and ProprietaryKDiff3 is Free and Open Source
Kompare
12 likes
Kompare is a graphical diff and merge tool targeting developers. It allows users to compare two different text files or two directories. It is part of KDE Applications (and formerly part of KDE Software Compilation) and therefore primarily used on Linux and other Unix-like...
Cost / License
Free
Open Source
Application types
Diff Tool
File Comparison Tool
Origin
Germany
EU
Platforms
Linux
KDE
Flathub
Is Kompare a good alternative to KDiff3?
Diffuse Merge Tool
22 likes
Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code.
56 Diffuse Merge Tool alternatives
Cost / License
Free
Open Source
Application types
Diff Tool
File Comparison Tool
Platforms
Linux
Is Diffuse Merge Tool a good alternative to KDiff3?
DeltaWalker
12 likes
Intuitive, multi-platform application for two and three-way visual file and folder comparison.
Cost / License
Pay once
Proprietary
Application types
Diff Tool
File Comparison Tool
Origin
United States
Platforms
Mac
Windows
Linux
Is DeltaWalker a good alternative to KDiff3?