Add your current catalog
Use the file that represents the prices and product rows your team trusts today.
Compare two supplier price lists without spreadsheet formulas.
Upload the catalog you use today and the supplier's updated CSV or Excel file. SupplyDiff shows what changed and prepares a review-ready export.
Compare my supplier filesFrom two messy files to one review queue.
Add the new supplier list
SupplyDiff reads CSV, TSV, and XLSX files and normalizes common SKU formatting differences.
Inspect and export changes
Filter changed, new, discontinued, pack/UOM, and attention rows before downloading CSV.
Changes that a price-only spreadsheet lookup can miss.
SKU and product changes
See newly added and discontinued products, plus duplicate or ambiguous identifiers that need review.
True unit-cost movement
When the case or pack quantity changes, compare normalized unit costs instead of only list prices.
Safer handoff
Export source rows, match method, confidence, and reason flags without publishing anything automatically.
Supplier price-list comparison FAQ
Can the files use different column names?
SupplyDiff recognizes common headers for SKU, description, price, pack quantity, unit of measure, and currency. It reports assumptions and file warnings for review.
Can I compare CSV and Excel files?
Yes. The current catalog and supplier update can be CSV, TSV, text-delimited, or XLSX files.
Are the supplier files uploaded?
No. The comparison runs in your browser, and the public tool does not upload or store the files.
Compare a real supplier update now.
Load the included example first, or use your own files. Nothing is written to your systems.
Open SupplyDiff free