Excel File Comparator

Upload two spreadsheets and compare row counts, column headers, and cell-level differences. Ideal for reconciling exports, price lists, and inventory sheets.

Compare two files up to 20 MB each · Values compared in-browser · Export a CSV diff report.

Original file Excel or CSV
Updated file Excel or CSV

How it works

  1. Upload the original file and the updated file.
  2. Pick a sheet or table to compare when both files contain multiple tabs.
  3. Review added, removed, and changed cells, then export a CSV diff report.

Features

  • Side-by-side upload for two Excel or CSV files
  • Summary stats for added, removed, and modified rows
  • Header matching to align columns before diffing
  • Compare excel files without installing desktop software
  • Highlight-style preview of sample differences
  • Export-friendly summary for audits and QA checks

Find differences between two spreadsheets

Load an old and a new version of an Excel or CSV file, match rows by a key column such as ID or SKU (or by row order), and see added, removed, and changed rows with each cell change highlighted. Export a CSV report to share with your team.

It is ideal for price list updates, inventory reconciliations, payroll checks, and reviewing exports from two different systems.

Excel File Comparator FAQ

Pick the worksheet to compare in each file when workbooks have multiple tabs.

We compare displayed cell values, not formula bar text.

Up to 20 MB per file, processed locally in your browser.

Yes for single-sheet CSVs. Excel workbooks will support picking a sheet before the diff runs.

No. Comparison runs locally in your browser.

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