Two-file spreadsheet comparison

Find what changed. Prove every difference.

Match baseline and updated records by the columns you trust, inspect changed values side by side, and export a clean difference register.

Private, browser-based reconciliation

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CSVXLSXLSXODS

Baseline fileThe earlier source of truth

Choose baseline fileCSV, XLS, XLSX, or ODS Browse

Updated fileThe newer file to inspect

Choose updated fileCSV, XLS, XLSX, or ODS Browse

Both files stay inside this browser.Try the sample pair:baselineupdated