Free Other Tools
Generate passwords and QR codes, calculate percentages and work with calendar dates.
All other tools
Password Generator
Generate a random password with your browser’s cryptographic random number generator. Choose its length and character types.
QR Code Generator
Turn text or a URL into a downloadable QR code in your browser.
Percentage Calculator
Calculate percentages, percentage changes, differences and discounts.
Date Calculator
Count days between dates or add and subtract calendar days.
Choose the right tool
Create cryptographically random passwords or static QR codes, calculate percentage changes and discounts, or count and add calendar days. Each utility explains its formulas, output and practical limitations.
Popular starting points
Password Generator · QR Code Generator
Free tools, with clear limitations
No accounts, usage-count limits or watermarks. Files and text are processed by tool code on your device. Very large inputs still need browser memory, and each page documents its supported formats. Read how local processing works.