CSV Price Check

Version 0.1.1: Corrects a misleading success message after an invalid CSV file is rejected. Valid files still load normally.

Try the free fixed-data demo in your browser before buying. It uses ten fictional sample items: review flags, approve eligible changes and inspect a CSV preview. The $19 full version lets you load your own selling-price CSVs and download approved updates. The free offline demo is also available below.

Review price changes before importing them into your store.

CSV Price Check compares current store prices with intended new selling prices by exact SKU. It shows old/new prices and percentage changes, flags duplicate identifiers, blank or zero prices and large changes, and exports only the existing-product price changes you approve. A full audit CSV is included.

Open one HTML file in a desktop browser. Your CSVs stay in the browser. No subscription, shop login, API key, upload service or external runtime dependencies. Includes a demo, example CSVs, quick-start guide, editable source and a licence for your own commercial business.

Check fit before buying: use desired SELLING prices, not supplier costs; both files need the same currency and tax basis. No markup, tax or currency conversion. UTF-8 CSV; comma, semicolon or tab delimiter; dot or comma decimals. Limit per file: 5 MiB, 25,000 records, 250 columns. Duplicate, unsafe or ambiguous SKUs never enter update exports.

The update file uses SKU and Regular price for the documented WooCommerce mapping. No live store connection, sale-price/stock/image/variant updates, product creation, Shopify import or full import validation. Keep a backup and test a small batch on staging. Not affiliated with WooCommerce. Actual store import remains unverified.

Version 0.1 was tested in Chromium through a local HTTP server: 18 engine tests passed and actual browser exports were checked. Direct file:// opening, other browsers and mobile use remain unverified. Code was developed with generative AI assistance and reviewed/tested by AI agents. It does not use AI to process your files.