KDiff3 vs Kompare
KDiff3
apps.kde.orgKompare
apps.kde.orgSide by side
| Figure | KDiff3 | Kompare |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Diff and Merge Tools | 8.3 (#8) | 7.2 (#25) |
| Spec score · File Comparison Software | 8.2 (#10) | 7.2 (#26) |
| License | KDiff3 is distributed under the GNU GPL version 2 or any later version, identified on the product page as GPL-2.0-or-later. | The application page lists Kompare under the GPL-2.0+ license. |
| Purpose | KDiff3 compares and merges files and folders. | Kompare is a graphical front end for viewing and merging differences between source files. |
| Release | The page lists version 1.12.5, dated 2026-07-20, as the latest release shown. | The latest release listed on the page is version 4.2.26081, dated 2026-09-10. |
Plans
In their own words
KDiff3
KDiff3 is a free, open-source desktop app for comparing and merging files and folders on Linux, macOS, and Windows. It can compare two or three text files or folders, showing differences line by line and character by character. For merge work, it can combine changes automatically and includes an editor for resolving conflicts, including three-way merges. Folder comparison and Git integration are supported. KDiff3 handles Unicode, UTF-8, and other file encodings; users can highlight or hide whitespace and comment changes, and print differences. It also supports version-control keyword and history merging, with network transparency through KIO. Its listed license is GPL-2.0-or-later. The Free plan costs nothing, and there is no free trial. Linux installation options include Discover or another AppStream store, a distribution package manager, or Flathub. The app page links to a handbook, forum, and bug-reporting page. KDE describes itself as an international community building and distributing free, open-source software since 1996.