Local CSV export comparison workspace

Upload nothing. Open an old and a new CSV export in the browser, match rows by a unique key, and download a clear report showing new, missing and modified records.

1. Previous CSV export

Older inventory, CRM, customer or spreadsheet export. The first row must contain unique headers.

Choose previous CSV file

2. Current CSV export

New export of the same dataset. Column order may differ, but the key column name must match.

Choose current CSV file

Unique match key column (must exist in both files)Match keys case-sensitively (recommended for SKUs and IDs)

Row comparison summary

Field-by-field audit CSV preview

Before comparing: choose an ID, SKU or email that uniquely identifies one row in BOTH files. This tool refuses duplicate and blank matching keys. It does not edit the original CSVs.