Strong Password Generator
Generate truly random passwords with one click: choose the length and which characters to include. The password is created with cryptographic randomness on your own device — it is never sent or stored anywhere.
🔒 Generated locally with crypto.getRandomValues — never sent or saved.
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- Choose the length (12+ recommended; 16+ for important accounts).
- Select which character types to include.
- Click "Generate" — a new password appears with a strength rating.
- Copy it and store it in a password manager.
What makes a password strong
Length beats complexity: each extra character multiplies the number of possible combinations. A random 8-character password with symbols can fall to modern hardware in hours; at 12 characters it takes centuries, and at 16 it outlives the universe. That is why this generator defaults to 16. Mixing uppercase, lowercase, numbers and symbols raises the per-character possibilities from 26 to ~90, multiplying the effort at every position.
Random beats memorable
Humans are terrible at random: names, birthdays and keyboard walks (qwerty, 123456) are the first things cracking tools try, along with every password ever leaked. This page uses cryptographic randomness (crypto.getRandomValues) — the same quality of randomness used to generate encryption keys — with no patterns to exploit.
One password per account
The biggest real-world risk is reuse: when one site leaks, attackers try the same email/password everywhere ("credential stuffing"). Generate a unique password per account and let a password manager remember them — you only memorize one master phrase. Enable two-factor authentication on email and banking for a second lock.
Frequently asked questions
Is the generated password sent anywhere?
No. It is created in your browser with crypto.getRandomValues and exists only on your screen until you copy it. Nothing is stored or transmitted.
What is a good password length?
12 characters minimum; 16 or more for email, banking and anything important. Longer beats more complex.
Should I use symbols?
Yes, when the site allows: they raise the possibilities per character. But length is still the dominant factor.
How do I remember all these passwords?
Do not — use a password manager (Bitwarden, 1Password, KeePass or your browser's). You memorize one master password; it stores the rest.