Password Generator – Strong Random Passwords

Use Calcuron’s free password generator to create strong, random passwords with customizable length and character sets. Everything is generated locally in your browser for privacy and security.

🔐 Custom length & character sets ⚡ Cryptographically secure randomness 🛡 Your data will never be tracked or stored by Calcuron

Generate a secure password

Choose your desired length and which types of characters to include. Then click “Generate password” to create a new random password instantly.

Password length: 16 characters

Longer passwords are generally stronger. Many security experts recommend at least 12–16 characters.

Include lowercase (a–z) Include uppercase (A–Z) Include numbers (0–9) Include symbols (!@#$…)

Adjust the options above and click “Generate password” to create a new random password.

How this password generator works

When you click “Generate password”, the tool builds a pool of allowed characters based on your selections (lowercase, uppercase, numbers, symbols). It then uses your browser’s cryptographically secure random number generator (window.crypto.getRandomValues) to choose characters from that pool.

Your passwords are never sent to a server or stored. They exist only in your browser window until you copy or save them.

Tips for using strong passwords

Use a unique password for every important account.
Store passwords in a reputable password manager instead of trying to memorize everything.
Avoid reusing passwords between email, banking, and social media accounts.
Combine long length with a mix of character types for extra strength.

This tool helps generate passwords, but security also depends on how you store and protect them.

Looking for more tools? Visit the Calcuron home page to use our age calculator, BMI calculator, loan calculator, unit converter, tip calculator, scientific calculator, and more.