Compare software

ecKDiff3
Free

Free and open source under the MIT license.

 Free

Free and open source under the GPL v2 or later.

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

Checked October 8, 2026

Checked October 1, 2026

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