Tools
Create cryptographically secure passwords and check the strength of existing ones.
Weak passwords are the number one cause of data breaches. This free Password Generator creates cryptographically secure passwords using your browser's built-in random number generator. Choose between random character passwords, memorable passphrases, or check the strength of your existing passwords. Everything runs locally on your device. Your passwords are never sent to any server.
Uses crypto.getRandomValues() for true randomness. No Math.random(). Same crypto API used by password managers.
Random passwords for maximum security, passphrases for memorability, and a strength checker for your existing passwords.
See exactly how strong your password is in bits of entropy with crack time estimates at 1 trillion guesses per second.
Everything runs in your browser. No data is sent to any server. Works offline. Clipboard auto-clears after 30 seconds.
Choose Random Password, Passphrase or Check Strength from the tabs at the top.
Adjust length and character types for random passwords, or word count and separator for passphrases.
Click Generate to create one password, or set the count to 5 or 10 for a bulk batch.
Read the entropy in bits, the estimated crack time, and the character breakdown shown below each result.
Copy a password to your clipboard, which auto-clears after 30 seconds, or download the batch as .txt or .csv.
Every password is generated with crypto.getRandomValues() in your browser. Nothing is sent to a server, the clipboard clears itself 30 seconds after a copy, and your password history lives only in this browser tab until you clear it or close the page.
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Developed by MadMVP
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