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DiffMerge vs Diffinity: catalog facts
DiffMerge	Diffinity
Free Free to use under SourceGear's freeware license.	Free Freeware.
Windows, macOS, Linux	Windows
Two-way diff and three-way merge with editable panes Side-by-side folder comparison	Highlights changed lines, words, and characters Compares folders as well as text files
Closed source freeware Infrequent updates	Windows only Requires the .NET 8 runtime
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

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