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  3. Master Password Generator

Special: Encrypti0n.com's Master Password Generator

Create strong, customizable master passwords tailored to your specific needs. Choose a word count between 4 and 10 words, and include your preferred seperation characters for added security. Easily copy your generated password with a single click using the built-in copy button.

Entropy of the generated password: 0 bits (algorithm specific) | 0 bits (general)

Secure & Memorable Diceware Passphrases

This generator creates strong passphrases using randomly selected Diceware-style words, then subtly modifies their vowels to produce unique, pronounceable words that are unlikely to appear in standard dictionaries while remaining easy to remember.

True Randomness

Every word is chosen using cryptographically secure randomness, providing high entropy suitable for master passwords.

Easy to Remember

Pronounceable words are significantly easier to memorize than random strings of symbols while maintaining excellent security.

Unique Word Variants

Random vowel substitutions create memorable words that rarely match common dictionary entries, adding uniqueness without sacrificing readability.

Private by Design

Everything is generated locally in your browser using cryptographically secure randomness. Nothing is transmitted, stored, or logged.

These passphrases are ideal for password manager master passwords, disk encryption, recovery keys, or any password that must be both highly secure and memorable.

FAQ

Long passphrases made from randomly selected words provide excellent entropy while being much easier to remember than passwords like Y#7t!kP9$vL2. Increasing the number of words increases security significantly.

After selecting random Diceware words, the generator randomly swaps vowels to create pronounceable variants. This helps reduce direct dictionary matches while keeping the words recognizable and easy to remember.

Security comes primarily from the number of randomly selected words. A passphrase with more randomly chosen words contains substantially more entropy than short passwords with predictable substitutions.

Separators such as spaces, hyphens, underscores, periods, or commas improve readability and can satisfy password policies that require special characters. The separator choice has little effect on overall security compared to the number of words.

For most users, 5–6 words provide an excellent balance of security and memorability. Seven or more words are ideal for protecting password managers, encrypted backups, or highly sensitive accounts.

No. Password generation happens entirely within your browser using the Web Crypto API. Your generated passphrases never leave your device.

References & Further Reading

Learn more about Diceware passphrases, password entropy, and current password recommendations.

  • Electronic Frontier Foundation (EFF)
    EFF Dice-Generated Passphrases
    Official guidance on creating strong six-word passphrases, including the EFF wordlists and recommendations for password manager master passwords.
  • Arnold G. Reinhold
    The Original Diceware Passphrase Method
    The original Diceware proposal explaining the security model and entropy calculations behind randomly generated word-based passphrases.
  • NIST SP 800-63B
    Digital Identity Guidelines – Authentication
    NIST recommends allowing long passwords and passphrases rather than enforcing complex composition rules.
  • XKCD #936
    Password Strength
    A famous illustration explaining why multiple randomly selected words can be both memorable and highly secure.
  • OWASP Authentication Cheat Sheet
    OWASP Authentication Best Practices
    Industry best practices for password length, storage, and authentication security.