Passphrase Generator

Create long, memorable, and secure passphrases using curated word lists and advanced options. Everything runs locally—nothing you type is ever sent to our servers.

Offline generation Entropy insights Diceware inspired lists

Customize your passphrase

Entropy & Strength

Estimated entropy 0 bits
Unique combinations 0

Security guidance

Generate a passphrase to see recommendations.

Tips

  • Use at least 4–6 words for core accounts.
  • Mix separators, numbers, or symbols for extra entropy.
  • Store passphrases in a password manager—do not reuse.

Your generated passphrase

Generate to reveal your passphrase

Word lists curated by experts

Our wordlists balance pronounceability with randomness. The cyber list includes industry terms while the nature list emphasizes vivid imagery to boost memorability.

Diceware methodology

Inspired by the Diceware approach, we calculate entropy based on the number of words and available choices. Longer phrases exponentially increase resistance to cracking.

Local-first privacy

Generation happens entirely in your browser. No telemetry, no storage, and no trackers—just private passphrase creation.

Best practices for memorable security

When to use a passphrase

  • Primary password manager unlock key (master password).
  • Wi-Fi networks shared with trusted family members.
  • Encryption keys where copy/paste is limited.

Avoid common pitfalls

  • Do not use famous quotes or song lyrics—they're easy to brute force.
  • Avoid substituting letters with predictable numbers (e.g., a → 4).
  • Never reuse your passphrase across multiple services.