KDiff3 Alternatives

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 WinMerge, which is both free and Open Source. Other great apps like KDiff3 are Meld, Beyond Compare, P4Merge and Araxis Merge.

More about KDiff3

KDiff3 alternatives page was last updated Feb 26, 2026

TableTextCompare
1 like
"TableTextCompare" (TTC) is a small utility that provides easy comparison of two-tab-delimited or comma-delimited (csv) files, to determine the difference between the two files.
Cost / License
Free
Proprietary
Application type
File Comparison
Origin
Israel
Platforms
Windows
Self-Hosted
Is TableTextCompare a good alternative to KDiff3?
TextDiff UWP
Like
Just fun with XAML ;).
Cost / License
Free
Open Source
Application type
Diff Tool
Platforms
Windows
Is TextDiff UWP a good alternative to KDiff3?
Diff Guru
1 like
DiffGuru is a free online tool for developers and writers to instantly compare two blocks of text or files, highlight additions and deletions, and merge changes - no signup required, privacy-first design.
56 Diff Guru alternatives
Cost / License
Free
Proprietary
Application types
Diff Tool
File Comparison
Platforms
Online
+4
Is Diff Guru a good alternative to KDiff3?
Ad
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,...

https://www.devart.com
Learn More
Folder Sync
5 likes
An application to help you keep multiple pairs of folders in sync, quickly and easily. View differences between pairs of folders on screen using user defined coloured coding. Folder Sync allows you to utilise a fully automatic sync or manually manipulate the files yourself to...
Cost / License
Paid
Proprietary
Application type
Diff Tool
Platforms
Mac
Is Folder Sync a good alternative to KDiff3?
Text compare!
5 likes
Text compare! is a online diff tool that allows you to easily spot the differences between to texts. Just paste two texts and hit the compare button. The two texts are shown side by side, with differences highlighted.
54 Text compare! alternatives
Cost / License
Free
Proprietary
Application type
Diff Tool
Platforms
Online
Is Text compare! a good alternative to KDiff3?
Text Comparator
2 likes
Text Comparator, is a portable tool that can be used to compare text from two distinct sources in order to see if they perfectly match or not each other!
Cost / License
Free
Proprietary
Application type
Diff Tool
Platforms
Windows
Is Text Comparator a good alternative to KDiff3?
Patchword
1 like
Compare text files or entire directory hierarchies, export and apply patches, and perform non-destructive find and replace operations on text files.
Cost / License
Free
Proprietary
Application type
File Comparison
Origin
Germany
EU
Platforms
Mac
+2
Is Patchword a good alternative to KDiff3?
Diff Checker Chrome Extension
Like
Diffchecker will compare text to find the difference between two text files. Just paste your files and click Find Difference!.
Cost / License
Free
Proprietary
Application type
Diff Tool
Platforms
Google Chrome
Is this a good alternative to KDiff3?
No Compare
Like
A file and folder comparison tool, targeted at developers, with powerful merging capabilities. Easily integrate with git or other version control system and diff and merge files with the 3-ways merge and powerful alignment...
Cost / License
Paid
Proprietary
Application types
Diff Tool
File Comparison
Platforms
Windows
+1
Is No Compare a good alternative to KDiff3?
D
D
dwdiff
Like
dwdiff is a diff program that operates at the word level instead of the line level. It is different from wdiff in that it allows the user to specify what should be considered whitespace, and in that it takes an optional list of characters that should be considered delimiters.
Cost / License
Free
Open Source (GPL-3.0)
Application type
Diff Tool
Platforms
Linux
FreeBSD
Fedora
NetBSD
Slackware
D
Is dwdiff a good alternative to KDiff3?
Twofold
Like
Modern online file and folder diff tool that runs entirely in your browser — no uploads.
Cost / License
Free
Proprietary
Application types
Diff Tool
File Comparison
Origin
United States
Platforms
Online
Is Twofold a good alternative to KDiff3?
LineDiff
Like
Free AI-powered text and file comparison tool. Compare PDF, Word, Excel, JSON, YAML, CSV, XML and Markdown online. End-to-end encryption, real-time collaboration, AI explanations. No installation needed.
Cost / License
Freemium
Proprietary
Application type
File Comparison
Platforms
Online
Software as a Service (SaaS)
Is LineDiff a good alternative to KDiff3?