Strong Password Generator — Passwords & Passphrases with Entropy
Generate secure passwords and passphrases with entropy scores and crack-time estimates. Quick presets, batch mode, and history. Uses Web Crypto API — 100% private, runs in your browser.
Keywords: password generator, random password, secure password, strong password, password creator, passphrase generator, password presets, entropy calculator, time to crack, password history
Frequently Asked Questions
How secure are the generated passwords?
We use the Web Crypto API for cryptographically secure random number generation, making passwords highly secure.
What is a passphrase?
A passphrase is a password made of random words (like 'dragon-sunset-rainbow'). They're easier to remember while still being very secure.
What are the quick presets?
Presets let you quickly generate passwords for common use cases: PIN (4 digits), Simple (8 chars), Strong (16 chars), and Maximum (32 chars).
What does 'entropy' mean?
Entropy measures password randomness in bits. Higher entropy means more possible combinations and a harder-to-crack password.
How is the crack time calculated?
We estimate how long it would take to crack your password assuming 10 billion guesses per second (modern GPU attack).
Can I generate multiple passwords?
Yes! Enable 'Generate 5 at once' to see multiple password options and pick your favorite.