What it does
SourceGear DiffMerge visually compares files, supports three-way merging and compares folders on Windows, Mac and Linux.
Folder Diff identifies files present on only one side and pairs that differ. Open a relevant pair for highlighted changes within lines. When three revisions need reconciliation, the merge view permits automatic merging where possible and manual editing of the resulting file. Windows Explorer integration can start a comparison from two selected files. DiffMerge is licensed for use free of charge. Optional paid registration removes recurring registration prompts and provides updates and support; its key does not expire and can be used on the user's computers.
Strengths
- Two-file diff and three-file merge
- Folder comparison identifies missing and changed files
Best for
- Resolving text revisions across platforms
Sources
- SourceGear | DiffMerge (Oct 26, 2026)
- DiffMerge free use and optional registration (Oct 26, 2026)