Free · no account · runs in your browser

Free tools for ecommerce sellers

Calculators and generators for the paperwork of selling online: know your real profit, check what each platform takes, print the labels and slips that go in the box. Everything runs locally in your browser.

Money

Profit Calculator Know exactly what you make on every sale. Open the tool Platform Fee Calculator Shopify, eBay, Amazon and Etsy fees on one sale. Open the tool

Shipping

CN22 Customs Form Generator The customs declaration, filled correctly. Open the tool

Documents

Packing Slip Generator Order in, a clean packing slip out. Open the tool Commercial Invoice Generator The customs invoice, filled correctly. Open the tool

Labels and codes

Barcode Generator Code 128 barcodes as PNG, SVG or a printable sheet. Open the tool QR Code Generator QR codes for products, packaging and Wi-Fi. Open the tool

Why the tools are free

The same reason the label generator is free: they are the acquisition, not the product. Every tool runs entirely in your browser, nothing you type is uploaded anywhere, and there is no account to create. Use them as often as you like.

They are also written to be checked. Each tool page shows the formulas it uses, so the number you act on is never a black box.

New tools land as they are built. The shipping guides cover the parts of selling that a calculator cannot: customs paperwork, addressing rules and the mistakes that get parcels returned.