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Previous price list
No file selected
SUPPLIER PRICE COMPARISON
Same pack price.
Hidden cost increase?
Compare two supplier price lists by cost per unit. Spot pack-size changes before your next order.
Fictional example: US$120 for 12 items becomes US$120 for 10. Try it without an account or a file upload.
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
CSV exports keep stable English headers; source values are unchanged.
| 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.
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YOUR WORKSPACE
Ready for next time.
Save column profiles and comparison totals to your account, then reuse them on another device. Original CSV files stay on your device. Summaries contain totals only; individual quotes are uploaded only when you explicitly save price history. 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 in Compare before closing the page. Sign in before selecting files, as signing in reloads the page.
Restore a workspace backup
Restores saved settings, summaries and price records 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.
Checking plan availability. Free comparisons require no card.
PRICE HISTORY
See what changed over time.
Track dated supplier quotes by cost per unit. Your history follows your signed-in account.
Record a quote
Sign in to save and load your history
Enter the exact SKU from your current comparison to fill its updated pack price, pack size and currency, or enter a quote manually. Keep supplier names and units consistent; kg and piece are separate histories. No unit or currency conversion is applied.
Unit-cost trend
No price records yet. Save two dated quotes for the same SKU, supplier, currency and unit to compare their change.
The chart scales to your recorded prices, not necessarily zero. Quotes on the same day are listed in save order. These are recorded quotes, not market forecasts.
| Quote date | Pack price | Units / pack | Unit cost | Change vs previous |
|---|
GUIDES & RESOURCES
A confident first comparison.
Sample files and practical answers for the online workspace.
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 not supported. 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, then open Compare.
Before you trust a price change
PLANS
Start free.
Keep more when you need to.
Full comparisons stay free. Pro expands your saved workspace.
UNITCOST DESK FREE
Every comparison. No card.
US$0
- Compare two CSV or TSV price lists locally
- Export full CSV reports, including all findings
- 100 saved profiles, summaries and price records after sign-in
- Export, restore and delete your saved entries
UNITCOST DESK PRO
More room for your work.
US$19 / month
Save up to 1,000 column profiles, comparison summaries and price records across devices. Free accounts keep 100 entries. Full CSV comparison and report exports remain free.
US$19 per month, automatically renewing until canceled. Checkout shows your selected billing currency and any conversion. Manage payment details and cancel renewal in Stripe. After cancellation takes effect, existing entries stay readable, exportable and deletable; new saves use the free limit. Original CSV files and full reports are not stored.
Live payment verification for this account only. Stripe will charge a real US$19 monthly subscription if you confirm payment. Public subscriptions remain closed.
First payment: request a full refund within three calendar days. Your subscription ends immediately when the refund is processed. Later renewals do not receive routine prorated refunds.
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What a saved workspace includes
Profiles remember your column mapping. Summaries keep category totals. Price history stores only the individual quotes you explicitly save. Original CSV files and full reports stay on your device and cannot be reopened from a summary. Google and ChatGPT workspaces are separate accounts.
Free comparisons require no card. Pro is US$19 per month with automatic renewal until canceled. Review the subscription and refund terms before subscribing.