Find changed, added and removed rows, detect supplier price and stock changes, and export only what actually needs updating.
No CSV files yet? Load two sample product catalogs and instantly see price changes, stock changes, new products and removed products.
Compare old and new files and identify price, stock, SKU and catalog changes without manual work.
CSV files are processed in your own browser. Your catalog contents are not uploaded to CatalogDiff servers.
Export difference reports and prepare update files for Shopify, WooCommerce and other e-commerce workflows.
CatalogDiff is a CSV diff tool designed to compare an old CSV file with a new one. Choose a unique key such as SKU, EAN or ID and CatalogDiff identifies changed, added and removed rows without requiring you to manually compare spreadsheets.
For supplier catalogs and e-commerce exports, CatalogDiff can map product names, prices and stock columns. This makes it easier to spot price increases or decreases, inventory changes, new products and products removed from a newer catalog.
Your CSV catalog contents are processed locally in your browser and are not uploaded to CatalogDiff servers. Always review comparison results before importing updates into a production store.
Compare CSV files · CSV diff tool · Compare CSV by key or SKU · Compare supplier price lists · Compare product catalogs
Can I compare two CSV files for free?
Yes. CatalogDiff Free supports comparisons of up to 500 rows per file.
Can CatalogDiff find price changes?
Yes. Map a price column and CatalogDiff can show old and new prices and calculate percentage changes.
Can I compare CSV files using SKU or EAN?
Yes. You can choose a unique identifier column such as SKU, EAN, GTIN, ID, code or reference.
CatalogDiff processes CSV files locally in your browser. Catalog contents are not uploaded to CatalogDiff servers. License data such as your email and license key may be sent to the validation service only when you activate or validate CatalogDiff Pro.
CatalogDiff is a catalog comparison tool. You are responsible for reviewing results and creating backups before importing any file into a store or production system. Compatibility with every supplier, format or platform is not guaranteed.
Refund requests for CatalogDiff Pro are handled according to applicable law and the terms shown at checkout. For assistance, contact us using the email below.
Use the purchase email and the license key received from Payhip.
Sign in to manage your account and Pro access.