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Compare two CSV files locally
Compare small CSV files directly in your browser and identify added, removed, and unchanged rows.
● Processing stays in this browser.
Local file comparison
Compare files
Maximum 1 MB and 5,000 data rows per file. Files are not uploaded or stored.
Comparison result
Select two files to display their differences.
Privacy & security: Files are processed only in this browser tab's memory. There is no upload, analysis request, or persistent storage.
What the free version provides
Free · no sign-in
Immediate local one-off checks without an account.
An account adds project profiles, advanced workflows and, depending on the plan, larger limits. This page stores no history.