Generate Strong, Secure Passwords

In an era of frequent data breaches, using unique and complex passwords for every account is the single most important step you can take to secure your digital life. QodeCat Password Generator creates cryptographically strong strings that are nearly impossible for hackers to guess.

• Random Password: Ideal for password managers. Contains a mix of symbols, numbers, and letters.
• Passphrase (Diceware): Ideal for humans. A sequence of random words that is easy to type but mathematically secure.
• 100% Private: All generation happens locally in your browser via the Web Crypto API. We never see your passwords.
• Customizable: Adjust length, characters, and formatting to meet specific website requirements.

Why Use a Passphrase?

A password like Tr0ub4dor&3 is actually hard for humans to remember but easy for computers to crack.

A passphrase like correct-horse-battery-staple is easy to remember, easy to type, but still strong, because every word is picked at random from a large list. Each word adds about 13 bits of entropy with the 7,776-word English list (about 10–11 bits with the shorter lists used in other languages); the tool shows the total in bits next to the strength meter.

Security FAQ