About This Tool

Strong passwords are the first line of defense against account compromise. This free password generator creates cryptographically secure, random passwords you can customize: length, uppercase/lowercase, numbers, and special characters. Generate as many as you need, copy them instantly, and never use the same password twice. Works entirely in your browser — no passwords are transmitted or stored.

Common Uses

Generate strong, unique passwords for every account
Create secure API keys or authentication tokens
Bulk-generate passwords for team onboarding

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Password Generator

Cryptographically secure passwords and Diceware-style passphrases. Generated in your browser using window.crypto — never transmitted.

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Very weak · 0 bits

Why entropy matters

Bits of entropy = how many guesses (in powers of 2) an attacker needs. 60+ bits resists offline attack on a strong hash. 75+ bits is solid for any account. 100+ bits is overkill for human use, perfect for keys.

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Frequently Asked

How strong is a generated password?: All passwords are generated using cryptographically secure randomness. Length and character complexity determine strength — 16+ characters with mixed types is ideal.
Can I customize the password?: Yes. Toggle uppercase, lowercase, numbers, and special characters to meet any requirement.
Are passwords stored or transmitted?: No. All generation happens in your browser. Passwords are never sent to a server or stored.
Why shouldn't I use the same password twice?: If one service is breached, attackers can try that password on your other accounts. Unique passwords limit damage to a single account.