Compare software

Diffinity vs Diffchecker: catalog facts
Diffinity	Diffchecker
Best for: Windows users reviewing and merging text or source code changes	Best for: People checking changes between text, files or code
Free Freeware.	Free + paid options Basic online text comparison is free; some features have free trials and unlimited access is on Pro.
Windows	Windows, macOS, Web
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	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
Windows only Requires the .NET 8 runtime	Some comparison features are free to try and unlimited on Pro.
Downloadable app	Downloadable app, Web application
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
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Diffinity truehumandesign.se/s_diffinity.php Catalog checked October 8, 2026	Official website Full listing and sources Sources for Diffchecker diffchecker.com Catalog checked October 8, 2026

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