Compare software

Diffchecker vs Wdiff: catalog facts
Diffchecker	Wdiff
Best for: People checking changes between text, files or code	Best for: People reviewing small text changes or reformatted paragraphs
Free + paid options Basic online text comparison is free; some features have free trials and unlimited access is on Pro.	Free Free software under the GPL-3.0-or-later license.
Windows, macOS, Web	Command line
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	Shows changes at the word level Useful when paragraph reflow makes line-based differences hard to read
Some comparison features are free to try and unlimited on Pro.	Requires the `diff` program
Downloadable app, Web application	Downloadable app
Not open source	Open source
License not stated	License: GPL-3.0-or-later
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 Wdiff gnu.org/software/wdiff Catalog checked October 8, 2026

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