KDiff3 vs mergers
KDiff3
apps.kde.orgmergers
github.comSide by side
| Figure | KDiff3 | mergers |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 2 | 0 |
| Spec score · Diff and Merge Tools | 8.3 (#8) | 6.7 (#27) |
| Build requirements | The current build instructions require Qt 6.7 or newer, KDE Frameworks 6.2 or newer, CMake 3.22 or newer, ECM 6.2 or newer, Boost 1.71 or newer and a C++17-capable compiler. | Building from source requires GTK4 and GtkSourceView 5 development libraries. |
| Git integration | The documentation includes instructions for using KDiff3 as Git's diff and merge tool. | It can display uncommitted changes and be configured as Git's merge tool. |
| 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 repository lists the software under the GPL-2.0 license. |
| Maker | KDE describes itself as an international community building and distributing free, open-source software since 1996. | The repository owner identifies as Jos Dehaes and lists Belgium as their location. |
| Platforms | The app page lists Linux installation and links to Windows and macOS; nightly installers are listed for Windows and macOS ARM and Intel. | The README provides installation instructions for macOS and Linux, and release builds for Windows x86_64 and aarch64. |
| Purpose | KDiff3 compares and merges files and folders. | Mergers is a visual diff and merge tool for files and directories, written in Rust with GTK4. |
| Release | The page lists version 1.12.5, dated 2026-07-20, as the latest release shown. | The latest release page opened identifies version 0.8.2, released April 7. |
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.