Compare software

KDiff3ec
Free

Free and open source under the GPL v2 or later.

 Free

Free and open source under the MIT license.

Windows, macOS, Linux Windows, macOS, Linux, Command line
  • Compares and merges files and whole directories
  • Three-way merge for resolving version control conflicts
  • Three-way conflict view with an optional diff3 base
  • Browses working-tree and commit changes
  • Interface looks dated next to newer diff tools
  • Focused on text; no rich comparison of binary formats
  • A terminal-based interface
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0-or-later License: MIT
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.