01
Previous price list
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FOR SMALL PURCHASING TEAMS
New pack. New price.
What actually changed?
Compare two supplier lists by cost per unit. Catch price increases hidden behind a different pack size.
Compare your lists
CSV / TSV · UTF-8 · up to 5 MB and 25,000 rows per file
02
Updated price list
No file selected
Your files stay on this device.
No uploads. No account. No AI.
Choose two files and confirm the units to begin.
The real price changes
| SKU | Finding | Previous / unit | Updated / unit | Change | Notes / source lines |
|---|
Added / removed means present in only one file, not confirmed availability. Reports never modify your source files.
HOW THE COMPARISON WORKS
A small tool. A clear answer.
Unit cost = pack price ÷ units per pack. SKUs match exactly, including case and leading zeros. Duplicate or invalid rows are held for review instead of guessed.
Use comparable net prices. Currency conversion, tax, shipping, discounts, weight/volume conversion, PDF and Excel workbooks are outside this preview. Export your workbook as UTF-8 CSV first.
Try it with a real file
These fictional lists include a smaller pack that costs more per unit. Download both and use the comparison above.
Unzip the offline preview and open index.html. It includes the local comparison tools; cloud profiles, history and subscriptions require the online workspace. There are no paid features, purchases or licence keys in this release.
Before you trust a price change
YOUR ONLINE WORKSPACE · FREE PREVIEW
Set up once. Compare again.
Save column profiles and comparison totals to your account, then reuse them on another device. Original CSV files, SKU names and individual prices stay on your device. Summaries cannot reopen the full report.
Loading workspace…
Only uploaded when you save or restore. Free workspace: up to 100 entries; delete them at any time. Export full reports above before closing the page. Sign in before selecting files, as signing in reloads the page.
Restore a workspace backup
Restores saved settings and summaries to your signed-in account. Existing IDs are skipped, not overwritten. If new entries exceed your available space, the whole batch is refused. This cannot restore original CSV files or full reports.
Stripe sandbox · no real charges
Operator testing only. Use Stripe test card details, never a real card. An active test subscription expands capacity from 100 to 1,000 entries. When it ends or payment is overdue, new saves use the free limit; existing entries remain readable, exportable and deletable.
The workspace is free during this preview. Paid subscriptions are not available yet. No card required.