Merch Master - Inventory Management Standalone App

A downloadable no installation required inventory management web app for tracking product categories, products, and stock movement transactions. It provides a dashboard summary, product stock monitoring (reorder/overstock alerts), transaction logging (sales, purchases, returns, spoilage, beginning balance), inventory valuation reports, stock ledger reporting, and full data backup/restore via JSON export and import.

• Dashboard overview with key inventory statistics (total products, total inventory cost, reorder count, overstock count)
• Automatic detection of products needing reorder based on reorder level
• Automatic detection of overstocked products based on overstock level
• View last 10 recorded transactions on the dashboard
• Category management (add, edit, delete categories)
• Prevents deleting categories that are linked to existing products
• Product management (add, edit, delete products)
• Product fields include SKU, name, unit, category, selling price, unit cost, reorder level, overstock level, and on-hand quantity
• Prevents duplicate category descriptions
• Prevents duplicate product SKUs
• Prevents deleting products that already have transactions
• Product list search by name or SKU
• Product filtering by category
• Product filtering by stock status (needs reorder / overstocked)
• Paginated product list view
• Transaction management (record and delete transactions)
• Transaction types supported: BEGIN, PURCHASES, SALES, RETURNS, SPOILAGE
• Auto-updates product on-hand quantity based on recorded transactions
• BEGIN transaction sets initial stock quantity
• PURCHASES and RETURNS increase stock
• SALES and SPOILAGE decrease stock
• Prevents recording a transaction dated earlier than the latest existing transaction
• Transactions are not editable once saved (delete only)
• Transaction list search (reference, product, notes, SKU)
• Transaction filtering by transaction type
• Transaction filtering by product
• Paginated transaction list view
• Stock Ledger report generation by product and date range
• Stock Ledger includes running balance calculations
• Print/PDF support for Stock Ledger report
• Cost of Inventory report showing inventory valuation based on unit cost x on-hand quantity
• Cost of Inventory report includes total inventory value calculation
• Print/PDF support for Cost of Inventory report
• Backup/export all app data (categories, products, transactions) into a downloadable JSON file
• Restore/import app data from a JSON backup file
• Import replaces all existing stored data with confirmation warning
• Modal-based forms for adding/editing records

Best used for desktop or laptops (works on Mac, Windows, Linux).

All you need is a web browser.

No internet connectivity is needed.

You can back up your data and restore as needed.

PAY ONE TIME, USE A LIFETIME! NO RECURRING SUBSCRIPTION FEES!

IMPORTANT: All data you encode are saved solely on the computer where you opened the file. They cannot be accessed from another device unless you export the data and import that data to the other device.