Compare software

Diffchecker vs DiffMerge: catalog facts
Diffchecker	DiffMerge
Best for: People checking changes between text, files or code	Best for: Developers who want a free graphical diff and merge tool for version control
Free + paid options Basic online text comparison is free; some features have free trials and unlimited access is on Pro.	Free Free to use under SourceGear's freeware license.
Windows, macOS, Web	Windows, macOS, Linux
Compares text, files and code Offers a free side-by-side text comparison All 3 strengths for Diffchecker Compares text, files and code Offers a free side-by-side text comparison Desktop app supports offline diffs	Two-way diff and three-way merge with editable panes Side-by-side folder comparison All 4 strengths for DiffMerge Two-way diff and three-way merge with editable panes Side-by-side folder comparison Same feature set on Windows, macOS and Linux Windows Explorer right-click integration
Some comparison features are free to try and unlimited on Pro.	Closed source freeware Infrequent updates
Downloadable app, Web application	Downloadable app
Not open source	Not open source
License not stated	License: Freeware
Not stated if an account is needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Diffchecker diffchecker.com Catalog checked October 8, 2026	Official website Full listing and sources Sources for DiffMerge sourcegear.com/diffmerge Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.