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Kompare
What it is
Kompare is a free Linux graphical application for reviewing and merging differences between source files. It can compare individual files or recursively inspect folder contents, using files, folders, or a URL and a file as inputs. Users can adjust the amount of diff information shown, create and apply patches, and select particular changes to apply from a source to a destination before saving. Kompare can also create, display and apply diff files that contain changes between files or folders. Command-line options include URL comparisons and opening diff output, including input from standard input. The KDE Applications page lists installation through AppStream application stores or a distribution package manager, and links to Flathub. Kompare is listed under the GPL-2.0+ license. Its handbook describes uses such as reviewing changes shared among document editors and comparing changes across folder trees. Help is available through the handbook and KDE Forum, while issue reporting links to KDE's bug tracker. The latest listed release is version 4.2.26081, dated 2026-09-10.
For and against
For
- Compares files and folders recursively
- Can create and apply patches
- Supports selective changes between source and destination
- Free, with no paid tiers stated
Against
- Linux is the listed platform
- No trial is listed
The verdict
Kompare provides file and folder comparison, patch handling and selective merging in a free Linux application. Its handbook and KDE Forum are linked for support.
Who it suits
Kompare suits Linux users who need to inspect changes between source files or across folder trees. It also supports selective merging and patch workflows.
Plans and prices
Kompare
No paid tiers or usage limits stated
Read 9 Oct 2026 · apps.kde.org
On the record
- Command line
- Command-line options include comparing URLs and opening diff output, including input from standard input.docs.kde.org · read 9 Oct 2026
- Diff files
- Kompare can create, display, and apply diff files containing changes between files or folders.docs.kde.org · read 9 Oct 2026
- Diff formats
- It supports a variety of diff formats and options to customize how much information is displayed.apps.kde.org · read 9 Oct 2026
- File and folder comparison
- It compares files or folder contents recursively.apps.kde.org · read 9 Oct 2026
- Inputs
- The handbook says comparisons can use files, folders, or a URL and a file.docs.kde.org · read 9 Oct 2026
- Intended use
- The handbook describes using Kompare to review and apply changes shared between people editing documents, and to compare changes across folder trees.docs.kde.org · read 9 Oct 2026
- License
- The application page lists Kompare under the GPL-2.0+ license.apps.kde.org · read 9 Oct 2026
- Patch creation
- It can create and apply patches.apps.kde.org · read 9 Oct 2026
- Platform and installation
- The KDE Applications page lists Linux installation through AppStream application stores or a distribution package manager, and links to Flathub.apps.kde.org · read 9 Oct 2026
- Purpose
- Kompare is a graphical front end for viewing and merging differences between source files.apps.kde.org · read 9 Oct 2026
- Release
- The latest release listed on the page is version 4.2.26081, dated 2026-09-10.apps.kde.org · read 9 Oct 2026
- Selective merging
- Users can apply selected differences between source and destination files and save the applied changes.docs.kde.org · read 9 Oct 2026
- Support
- The page links to the Kompare Handbook and KDE Forum for help and to KDE's bug tracker for reporting issues.apps.kde.org · read 9 Oct 2026
