Compare software

Beyond Compare vs KDiff3: catalog facts
Beyond Compare	KDiff3
Paid Paid license with a free trial.	Free Free and open source under the GPL v2 or later.
Windows, macOS, Linux	Windows, macOS, Linux
Compares folders, text, images and tables Merges changes from two versions	Compares and merges files and whole directories Three-way merge for resolving version control conflicts
Paid after the trial Proprietary software	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
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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