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Generate a strong, random password in your browser: choose the length and whether to include uppercase letters, lowercase, numbers and symbols. Every password is created on your own device using its built-in cryptographic randomness and is never sent anywhere or saved, so the one you generate is seen only by you.

Click generate…

Options

A–Z
a–z
0–9
!@#$%^&*
i l 1 L o 0 O

More Options

What actually makes a password strong

The two things that make a password hard to crack are its length and its unpredictability, and length matters more than most people realise. A short password bristling with symbols is weaker than a long one made of ordinary words, because every extra character multiplies the number of combinations an attacker has to try. A random string of sixteen characters, or a passphrase of four or five unrelated words, beats the old "P@ssw0rd!" pattern comfortably.

Just as important is never reusing a password across sites: when one service is breached — and breaches are constant — reused passwords let attackers walk straight into your other accounts. The realistic way to manage that is a password manager, which remembers a unique long password for every site. Because the generator here runs entirely on your device, you can create those passwords without any of them touching the internet.

❓ Frequently Asked Questions

Are these passwords safe to use?

Yes. Passwords are generated entirely in your browser using crypto.getRandomValues() — your device's cryptographically secure random number generator. Nothing is ever sent to a server, logged, or stored. When you close the page, the password is gone unless you saved it.

How long should my password be?

Use at least 16 characters for important accounts. Longer is always stronger — a 16-character password with mixed character types would take billions of years to crack by brute force. For maximum security on critical accounts, use 20+ characters.

What is a passphrase and is it more secure?

A passphrase strings together random words (e.g. Tiger-Cloud-Maple-Frost42). They're far easier to remember than random strings while still being very strong thanks to their length. Switch to "Memorable passphrase" mode above to generate one.

Why exclude similar characters?

Characters like l (lowercase L), 1 (one), I (capital i), 0 (zero) and O (capital o) look almost identical in many fonts. Excluding them makes a password easier to read and type by hand without losing meaningful security.

✓ 100% free, no sign-up 🔒 Private — runs in your browser 🔄 Updated 2026

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