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SmartSynchronizeKDiff3
Paid

Prices are not listed on the product page; licensing details are on the syntevo site.

 Free

Free and open source under the GPL v2 or later.

Windows, macOS, Linux Windows, macOS, Linux
  • Editable file compare with inner-line change detection
  • 3-way merge with all three files editable
  • Compares and merges files and whole directories
  • Three-way merge for resolving version control conflicts
  • Pricing is not shown on the product page
  • Focused on text files and project trees rather than general backup
  • Interface looks dated next to newer diff tools
  • Focused on text; no rich comparison of binary formats
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-2.0-or-later
Not stated if an account is needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked October 1, 2026

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