Supplier prices changed.
Know what it costs you.
Compare old and new supplier price lists, spot cost changes, see margin impact, and calculate target selling prices to preserve margin.
Compare price listsWhat CostRift shows you
Detect cost changes
See increases, decreases, new and removed items — with ambiguous cases flagged for review.
See margin impact
Map selling prices and see exactly how each cost change moves your margin.
Protect your margin
Get the target selling price to preserve your previous margin on every affected item.
Export the comparison
Export filtered results to CSV for review in your own workflow.
How it works
- 1Add your previous and current supplier lists — CSV or XLSX.
- 2Map SKU and cost columns.
- 3Review cost changes and margin impact.
Private by design
- Your files stay in your browser.
- Supplier price lists are processed locally.
- Your files aren't uploaded to CostRift servers.
- No account is required to compare price lists.
- Products are matched conservatively by SKU, and ambiguous cases are flagged for review.
Frequently asked questions
What file formats does CostRift support?
CSV and XLSX. Drop in your previous and current supplier price lists from emails, downloads, or supplier portals.
Do my supplier files leave my browser?
No. Supplier price lists are processed locally in your browser and are never uploaded to CostRift servers. No account is needed.
Do I need selling prices?
No. Comparing costs works with just SKU and cost columns. Adding selling prices unlocks margin impact and target selling price calculations.
How does CostRift match products?
Products are matched conservatively by SKU, and ambiguous cases are flagged for review instead of being guessed.