Looking for a strong random password generator secure? This free tool gives you cryptographically strong random passwords made locally in your browser. Just enter your numbers and press Calculate — results are instant.
A strong password is long and unpredictable, and the only practical way to get one is to generate it at random. This tool picks each character at random from upper- and lower-case letters, digits and symbols, using the browser's cryptographic random generator — the same kind of randomness used for security, not the ordinary random used for games. Passwords are generated locally in your browser and never sent anywhere. Make them long (16 characters is a good default) and store them in a password manager.
Example: Length 16 · How many: 3
Three different 16-character passwords, freshly generated on every press
Longer is stronger: 16 characters is a good default, and more is better. Every extra character multiplies the guessing work enormously.
In a password manager — a tool that stores them encrypted behind one master password. Do not keep them in plain notes or reuse them across sites.
Because breaches happen. If one site leaks your password and you used it everywhere, every account is open. Unique passwords contain the damage to one site.