Help

A quick check before an update

Add a current catalog and a newer file from the same supplier. Both need a product ID and a price or stock column.

Your files stay on your device

File contents are processed in this browser and are not uploaded by this tool. Saved setups contain column names and settings only. The host handles normal website access.

Supported files

UTF-8 CSV, TSV, or semicolon-separated files. Up to 5 MB and 25,000 rows each. Save Excel sheets as CSV UTF-8 first. Stock must be a nonnegative whole number.

Free during the prototype

No account or payment needed. This compares the fields you select; it does not update your store or validate every import requirement.

Compare your catalogs.

Add two product CSVs to see price, stock, and ID changes.

Current catalog

The file you’re using today

Not added

Choose current fileor drag it hereCSV · up to 5 MB

Updated catalog

The new file from your supplier

Not added

Choose updated fileor drag it hereCSV · up to 5 MB

Files stay on your device.

Just looking around?

Here’s what changed.

This is a review report. Missing products may reflect a partial update. Your store and original files stay unchanged.

Product comparison findings
Status	Product	Current price	Updated price	Stock	Finding	Reviewed

About this report

Only your selected price and stock fields are compared. The download includes every finding, including unchanged rows and your review marks. Source references are CSV line numbers including the header. Review marks clear when you rerun or reset. This report is not a file to import into your store.

Compare your catalogs.

Current catalog

Updated catalog

Check the columns.

Current catalog

Updated catalog

Here’s what changed.