Compare software

Diffchecker vs Diffinity: catalog facts
Diffchecker	Diffinity
Best for: People checking changes between text, files or code	Best for: Windows users reviewing and merging text or source code changes
Free + paid options Basic online text comparison is free; some features have free trials and unlimited access is on Pro.	Free Freeware.
Windows, macOS, Web	Windows
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	Highlights changed lines, words, and characters Compares folders as well as text files All 3 strengths for Diffinity Highlights changed lines, words, and characters Compares folders as well as text files Supports syntax highlighting and portable use
Some comparison features are free to try and unlimited on Pro.	Windows only Requires the .NET 8 runtime
Downloadable app, Web application	Downloadable app
Not open source	Not open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for Diffchecker diffchecker.com Catalog checked October 8, 2026	Official website Full listing and sources Sources for Diffinity truehumandesign.se/s_diffinity.php Catalog checked October 8, 2026

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