What changed between two price lists

Drop in last period's list and this period's list. Pick the column that identifies each row (SKU, item code…). See exactly what changed, what's new and what's gone — price, cost and quantity deltas computed for you. Everything happens in this tab: nothing is uploaded.

Old list CSV (paste or drop a file)

New list CSV (paste or drop a file)

Key column (SKU / item code)

Columns to compare (multi-select)

Delta display

▲ increased ▼ decreased — new and removed rows are marked in the Change column.

Both lists are parsed and compared by JavaScript on this page — no upload, no API, nothing stored or sent. Save the page and it keeps working offline. The paid download adds the desktop app with supplier-name mapping, multi-period trend history and margin recalculation across the whole catalogue.

What is this page?

This is the real Price List Comparator — the same tool Untracked sells as a download — running free, right here in your browser. Everything is processed entirely on your own device: nothing is uploaded, no account is needed, and the page makes no network requests after it loads. You can verify that yourself: load the page, open your browser's network inspector, or even disconnect from the internet and keep using it.

Free page vs. the €9 download

Here (free): compare two full price lists, every column delta computed, CSV export included.

The download (€9, once): the same comparator as a single HTML file you own — supplier mapping, multi-period trend history and margin recalculation. Plus the commercial-use licence. Full details →

Questions people ask

How does it match rows between the two lists?

By the key column you pick — SKU, item code, or product name. Any row whose key exists in both lists gets compared; keys in only one list are marked NEW or REMOVED.

Can I compare text columns too?

Non-numeric values are shown as '(text)' instead of a fake delta — the comparison focuses on price, cost and quantity columns you select.

Do European decimal commas work?

Yes — values like '13,50' are parsed as 13.50 (and quoted CSV fields with commas are handled correctly).

What does the paid version add?

A desktop app with supplier-name mapping, multi-period trend history and margin recalculation across the whole catalogue.