Explore these tools
QR codes, passwords, documents and invoice generators. Choose a tool below and enter the details for your task. Each calculator explains its inputs and shows the result in your browser.
Tools and calculators
QR Code Generator
Create customised QR codes and download PNG or SVG files.
Password Generator
Create strong, random and memorable passwords locally in your browser.
European Repair Information Form
Complete a repair offer, preview the A4 form and download a PDF.
Proforma Invoice Generator
Create a professional proforma invoice, preview the A4 document and download a PDF.
Choosing the right calculator
Create QR codes, passwords, proforma invoices and repair documents in your browser. Review the entered details before downloading or sharing a result.
Compare the available tools before you start. For a useful result, check the units, assumptions and any optional settings in the calculator you choose.