Password Generator
Generate strong, secure passwords using cryptographically secure randomness. Everything runs in your browser — your passwords never leave your device.
How It Works
This password generator runs entirely in your browser using cryptographically secure randomness — no data is sent to any server. Your passwords are never stored, transmitted, or logged.
Random Password
Uses crypto.getRandomValues() — the same cryptographic random number generator used for TLS/SSL. You can customize length (4-128 characters), include/exclude uppercase, lowercase, digits, and symbols. The strength indicator shows estimated crack time.
Passphrase
Generates a memorable password from random words (e.g., "correct-horse-battery-staple"). 4 random words from a 2,048-word list provide about 44 bits of entropy — comparable to a random 8-character password. Easier to type and remember, equally secure.
Strength Indicator
The strength bar estimates security based on entropy (randomness). It considers password length and the size of the character pool. Weak = easily cracked. Medium = moderate. Strong = good. Very Strong = excellent security.
Privacy First
All generation runs locally in your browser. No data is sent to any server — there are no requests, no cookies, no tracking, and no logging. Your passwords exist only on your screen until you copy them.
Frequently Asked Questions (FAQ)
Q: How secure are the generated passwords?
A: Very secure. They use crypto.getRandomValues() — the browser's cryptographically secure random number generator, same as used in TLS/SSL encryption.
Q: Is my password stored on the server?
A: No. All generation happens in your browser. Passwords are never sent to any server, stored, or logged.
Q: How long should my password be?
A: At least 12 characters for good security, 16+ for strong security. Longer passwords are exponentially harder to crack.
Q: What is a passphrase?
A: A password made of random words like "correct-horse-battery-staple". Easier to remember but equally secure with 4+ words.
Q: What does the strength indicator mean?
A: It estimates how hard the password is to crack based on length and character diversity. Green = very strong, red = weak.
Q: Should I include special characters?
A: Yes, when possible. Special characters dramatically increase the number of possible combinations.
Q: Can I generate multiple passwords?
A: Yes. Set quantity from 1 to 20 and click Generate. Click any password to copy it.
Q: Is this tool free?
A: Yes, completely free with no registration required.