Compare Excel & CSV Files in Second. Free, secure, no downloads. Upload files, click compare, get highlighted differences instantly.

Compare Excel & CSV Files in Second. Free, secure, no downloads. Upload files, click compare, get highlighted differences instantly.

Free, open-source diff and merge tool for macOS and Linux — WinMerge's battle-tested engine with a native Qt 6 interface.




A fast desktop CSV comparison tool built for very large files. Compare millions of rows locally in seconds, without Excel, scripts, or cloud uploads.


