FOR RECURRING SUPPLIER UPDATES

A new file.
Know what changed.

Review exact changes between an old and a revised supplier CSV, using stable SKUs. Keep the originals. Decide what happens next.

Explore the sample

Fixed synthetic data · No upload · No sign-up

ONE CHANGE WORTH REVIEWING A10
Travel mugMapped field: price
PREVIOUS FILE9.00
FIRST UPDATE10.00
Changed valueExact strings. No currency assumption.

A blank stock value is different from 0.
Duplicate SKUs are flagged, never guessed.

01 Match stable, exact SKUs02 Review only mapped fields03 Keep ambiguity visible

AN EXAMPLE YOU CAN INSPECT

Follow the changes.

This viewer displays saved reports from the existing tool, using two fixed synthetic updates. It does not compare your own files.

SYNTHETIC SAMPLE
SKU item_codeBoth updates use the same original old.csv and mapping · Case-sensitive keys
Exact comparison entries from the selected synthetic report
SKUReview itemPrevious fileUpdate fileResult
Download this sample report JSON · Full saved output, not a source-file backup
Inspect the synthetic source files and column mapping

Previous file 7 records

Download old.csv

Selected update 5 records

Download update CSV

Download the sample column mapping · Names, prices and stock figures are invented for this example.

A SMALL, SPECIFIC JOB

Review the difference.
Keep the decision.

A changed string is a signal to inspect, not an instruction to update your store. The tool does not decide whether a price, stock value or catalog record is correct.

A fit for exact CSV comparisons

Two UTF-8, comma-separated files. A stable SKU that should be unique. Explicitly mapped columns. Repeat the same review for the next update.

It stops at the review step

No XLSX, fuzzy matching, unit or currency normalization, automatic fixes, or Shopify import. Duplicate keys stay unresolved.

Exact means exact

001 and 1, blank and 0, and 5 and 5.00 are different. If a spreadsheet or free tool already solves this comfortably, you may not need another tool.

THE PLANNED OFFLINE EDITION

Your files.
Your browser.

Use your own CSVs in the standalone HTML application, save a column mapping, and download the full JSON comparison report. No store connection or application account.

  • Process files locally without uploading their contents
  • Review changes, unmatched records and duplicate groups
  • Reuse your column mapping with the next pair of files

HELP TEST THE FIT

Would this replace a real step?

Think about the last supplier update you reviewed. What did you need to check, and what does your current process already do well?