SUPPLIER REVIEWWorking prototype · Free to try
For supplier price-list updates

See what changed.
Before you update your catalogue.

Compare your previous and latest supplier CSVs. Review price movements, missing products and records that need a closer look, then save a clear change report.

Try the working tool →View an example report

No signup. No file uploads. Your files stay in your browser's memory.

A fictional example, not customer data
Product identifierPrevious priceUpdated priceReview outcome
PART-10112.0013.20Price increased 10.00%
PART-2028.508.50Unchanged
PART-303Duplicate identifier15.00Blocked for review, no guessed match

From two files to one review.

01 / SELECTChoose the two versions

Use the built-in example, or choose your own UTF-8 CSV files. Select the identifier and price columns in each.

02 / REVIEWFind the changes that matter

Filter price changes, additions and removals. Duplicate identifiers and unclear prices are flagged separately.

03 / KEEPSave a readable record

Download a printable HTML report or a review CSV. Your original files are left unchanged.

A focused checking step.

Useful to try if you regularly receive updated supplier price lists and currently check them by hand or with spreadsheet formulas.

This is a review tool. It does not connect to or update your shop, and its report is not a store import file.

Download the portable demo kit

Check the fit first.

  • Exact identifiers only, including case and spaces. No fuzzy matching.
  • Decimal-point prices up to 128 characters, without currency symbols or thousands separators.
  • Both lists must use the same currency and unit basis.
  • Up to 10 MB per file. A 10,000-row comparison has been checked; other sizes and mobile use are not fully tested.

No measured customer savings or paid results yet. No price or purchase required for this prototype.