Utility tools

Utility tools: 3 free tools. QR Code Generator, Percentage Calculator, Age Calculator.

Each tool is free to use, with no account.

Create QR codes for URLs, text, email, phone numbers and Wi-Fi networks. Download PNG or SVG files.

Calculate a percentage of a value, a proportion, a percentage change, or an increase or decrease.

Calculate an age from a birth date and see the same period expressed in total days, weeks, minutes and seconds.