Is DiffSheets free to use?

Yes, DiffSheets is completely free to use. There are no hidden fees, subscriptions, or premium features locked behind a paywall.

Is my data safe when using DiffSheets?

Absolutely. DiffSheets processes all files 100% client-side in your browser. Your spreadsheet data never leaves your computer or gets uploaded to any server.

What file formats does DiffSheets support?

DiffSheets supports Excel files (.xlsx, .xls), CSV files, and OpenDocument Spreadsheets (.ods). You can compare files of the same or different formats.

Can I compare large Excel files?

Yes, DiffSheets uses virtual scrolling technology to efficiently handle large spreadsheets with thousands of rows without performance issues.

How does DiffSheets compare spreadsheets?

DiffSheets offers multiple comparison modes: position-based matching (row by row), key column matching (by a unique identifier), and intelligent LCS algorithm for best alignment detection.

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Compare Excel files and spreadsheets

Upload two files to see the differences. Your data stays in your browser.

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Compare Spreadsheets - Free Online Excel & CSV Diff Tool | DiffSheets