TkDiff is a graphical front end to the diff program.
It provides a side-by-side view of the differences between two text files, along with several innovative features such as diff bookmarks, a graphical map of differences for quick navigation, and a facility for slicing diff regions to achieve exactly the merge output desired.
This is free and open source software.
Key Features
- Interfaces with several SCM systems such as Subversion, Git, Mercurial and more.
- Runs on multiple platforms.
- Permits Diff-region repartitioning for EXACT merging.
- Provides statistics/reports on the breadth of changes.
- Highly configurable interface, with personalized defaults.
- Usable with multiple differencing engines, if desired.
- Supports directory-level comparison (including recursion) as well as individual file-level.
- Fully supports 3-way merging and can help resolve conflicts.
Website: tkdiff.sourceforge.io
Support: SourceForge Project Page
Developer: Martin Blais
License: GNU General Public License v2.0

TkDiff is written in Tcl. Learn Tcl with our recommended free books and free tutorials.
Related Software
| GUI Diff Tools | |
|---|---|
| Meld | Graphical diff viewer and merge application for the Gnome desktop |
| Kompare | KDE diff tool supporting a variety of diff formats |
| Diffuse | Tool for merging and comparing text files |
| TkDiff | Graphical front end to the diff program |
| objdiff | Local diffing tool for decompilation project |
| KDiff3 | Text difference analyzer for up to 3 input files |
| xxdiff | File and directories comparator and merge tool |
| RustDiff | Semantic JSON and XML diff tool |
| RCompare | File and directory comparison toolkit |
| Text Compare | Compare old and new text |
| Image Compare | Side-by-side image comparison tool for spotting differences |
| gap | Simple native graphical utility for comparing text files |
| meld-rs | Visual diff and merge tool for comparing files and directories |
Read our verdict in the software roundup.
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