SKU Generator is a free in-browser tool that creates product SKUs and variant matrices in bulk and exports them as a CSV, for Shopify, WooCommerce and catalog work. The export is a plain list of SKUs to paste into your own product file, not a Shopify product import file. No account is required, and it is not an inventory sync app or a Shopify app.
Building product catalogs meant endlessly handcrafting SKUs and variant matrices in spreadsheets. I wanted a fast, free in-browser tool that generates bulk SKUs and exports a clean CSV, with no account and no sync app, just the generator.