Small tools for everyday work.
Fast, focused and free to use. No account required, and the information you enter into these tools stays in your browser.
Invoice Generator
Build a professional invoice with dates, line items, tax and discount, then print or save it as a PDF.
Profit Margin Calculator
Calculate profit, markup, margin and the selling price required to reach a target margin.
Freelance Rate Calculator
Turn income goals, expenses and realistic billable time into an indicative hourly and day rate.
Useful before you create an account.
Zupoko’s free tools are intentionally narrow. They should help you finish a task first — not force you through onboarding, a trial or a dashboard you did not ask for.
Clear labels, sensible defaults and immediate results.
Tool inputs are processed in the browser rather than sent to a Zupoko application backend.
Each tool is paired with a practical guide and future reusable template systems.