Passphrase Generator
This passphrase generator builds Diceware-style passwords from randomly chosen dictionary words, so you get credentials that are both strong and easy to remember. Pick how many words you want (four is a solid default), choose a separator such as a hyphen or a space, and optionally remove ambiguous characters. The strength bar and entropy readout update on every regeneration and give you an instant crack-time estimate. Everything runs in your browser with the Web Crypto API. Nothing is sent to a server, logged, or stored. Use it for Wi-Fi passwords, password-manager master keys, disk encryption, or shared team accounts you have to type by hand.
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How to use this tool
Overview
This passphrase generator builds Diceware-style passwords from randomly chosen dictionary words, so you get credentials that are both strong and easy to remember. Pick how many words you want (four is a solid default), choose a separator such as a hyphen or a space, and optionally remove ambiguous characters. The strength bar and entropy readout update on every regeneration and give you an instant crack-time estimate. Everything runs in your browser with the Web Crypto API. Nothing is sent to a server, logged, or stored. Use it for Wi-Fi passwords, password-manager master keys, disk encryption, or shared team accounts you have to type by hand.Formula
Passphrase = word1-word2-word3-word4 (diceware-style)Frequently asked questions
What is a passphrase? +
A passphrase is a password made of several random words, for example seven-camera-otter-stone. The words make it long and strong, while the sequence stays easier to remember than random characters.
How many words should a passphrase have? +
Four words are a reasonable minimum for everyday accounts. Five to seven words are recommended for email, banking, password-manager master keys, and devices or accounts that protect other credentials.
Are passphrases generated locally? +
Yes. The words are chosen with your browser's cryptographic random generator and never leave your device. No account, no upload, and no storage server are involved.
How strong are the generated passwords? +
This tool generates cryptographically random passwords using the Web Crypto API. You can set length from 8 to 128 characters and include uppercase, lowercase, numbers, and symbols.
What is passphrase mode? +
Passphrase mode generates passwords from random word combinations (e.g., "correct-horse-battery-staple"), making them easier to remember while maintaining high entropy.
What does entropy mean in password strength? +
Entropy measures password randomness in bits. More bits = harder to crack. 80+ bits is strong for most uses, 128+ bits is recommended for master passwords.
Are the passwords generated in my browser? +
Yes. All password generation happens locally using the browser's crypto API. No passwords are transmitted or stored anywhere.