Utility Tools
Free online utility tools
Small tools you reach for every week: scannable QR codes for URLs, Wi-Fi and contacts; cryptographically strong passwords with a live strength meter; and instant unit conversion across length, weight, temperature, volume and file sizes.
QR Code Generator
Generate scannable QR codes for URLs, Wi-Fi, vCards, emails and phone numbers — live preview, custom colors, and PNG/SVG download in your browser.
Password Generator
Create strong, random passwords instantly with cryptographically secure entropy — custom length, character sets, and a live strength meter, right in your browser.
Unit Converter
Convert length, weight, temperature, area, volume and file sizes instantly — cm to inches, kg to pounds, GB to MB and more, live as you type.
Generated on your device
None of these tools need a server: QR codes are encoded locally, passwords come from your browser's cryptographic random number generator, and unit conversion is plain math in JavaScript. That makes them fast, always available, and private by construction. Browse all tools or read about our security approach.
FAQ
Utility tools — common questions
What utility tools are free?
All of them — the QR code generator, password generator and unit converter are free with no usage caps and no account required.
Is anything I type sent to a server?
No. QR codes are encoded locally, passwords come from your browser's cryptographic random number generator, and unit conversion is plain math in JavaScript. Nothing leaves your device.
Do the tools work on my phone?
Yes. Every tool is built mobile-first and works in modern browsers on Android and iOS as well as desktop.