Free Strong Password Generator — Secure Random Passwords
Generate strong random passwords from 8 to 64 characters with full control over uppercase letters, lowercase letters, numbers and symbols. Weak reused passwords cause the majority of account takeovers, and this tool fixes that in one click: drag the slider to 16 characters or more, keep all four character types enabled, and you instantly get a high-entropy secret that resists brute-force and dictionary attacks. A live strength meter scores every password out of 100 and estimates its entropy in bits, so you can see exactly how secure each result is.
Security is architectural, not promised: passwords are produced with the browser’s cryptographically secure random number generator (crypto.getRandomValues), never with predictable Math.random. Nothing is transmitted, logged or stored — generation happens entirely on your device, so even we cannot see your passwords. Confusing look-alike characters are excluded by default to reduce typos when entering codes on phones or TVs.
Why generate passwords this way?
- Cryptographically secure: uses crypto.getRandomValues, not weak pseudo-random math.
- Flexible length: 8–64 characters for everything from PINs to master keys.
- Live strength score: 0–100 meter plus bit-entropy estimate.
- Zero knowledge: client-side only — nothing leaves your browser.
- Free unlimited: no accounts, no history, no tracking.
How to use
- Drag the length slider — 16+ characters is recommended for important accounts.
- Toggle uppercase, lowercase, numbers and symbols on or off for site requirements.
- Click Generate, check the strength meter, then Copy and save it in a password manager.
Password safety tips
Use a unique password for every site, store them in a reputable password manager, enable two-factor authentication on email and banking, and prefer passphrases or 20+ character random strings for master passwords. Never share passwords over chat or email.
FAQ
Is this password generator safe? Yes. It uses your browser’s cryptographic RNG and runs 100% locally — passwords are never sent over the network, stored on servers, or visible to anyone but you.
What password length is best? Use at least 16 characters for important accounts like email, banking and social media; 20–32 characters is ideal for master passwords and crypto wallets.
Should I reuse passwords across sites? No — always use a unique password per site stored in a password manager, so one breach cannot cascade into your other accounts.
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