Free tool

Passphrase Generator

Generate a memorable random word-based passphrase for your master credential.

How it works

Long passphrases of unrelated words are easier to remember than random characters and harder to guess once they pass ~50 bits of entropy. This generator picks words uniformly at random from a curated 380-word list using your browser's secure RNG.

Methodology

Each word contributes about 8.6 bits of entropy. A six-word phrase gives roughly 51 bits — good against online attacks. Seven or eight words is recommended for offline-attack resistance or a password-manager master phrase. For maximum entropy, use the EFF long wordlist (12.9 bits per word) with physical dice — that is the original Diceware method.

Frequently asked questions

Why a passphrase instead of a random password?

Memorability. You only need to memorize the credentials that unlock everything else: your device PIN, your password manager, your email recovery.

Should I add a digit or symbol?

Adding one digit or symbol contributes very little entropy compared to one extra word. But many sites still require it, so the option is here.

Is six words enough?

For most accounts, six-word phrases fronted by a password manager are more than enough. For high-value standalone credentials, prefer seven or eight.

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