Secure Passphrase Generator

The Secure Passphrase Generator builds memorable passphrases of three to ten words with a separator, optional capitalization, numbers, and symbols, and shows the entropy. It is for anyone who wants a strong password that is still possible to remember.

Random character strings are strong but hard to remember; word-based passphrases balance both. Generating them locally gives memorable strength with the entropy shown, and nothing leaves your browser.

1. Choose how many words the passphrase should contain.
2. Pick a separator, and optionally add capitalization, numbers, or symbols.
3. Generate the passphrase.
4. Check the entropy to confirm it is strong enough.
5. Copy it into your password manager.

• Three to ten word passphrases
• Separator, capitalization, number, and symbol options
• Entropy display
• Generated locally — Secure Passphrase

• Creating a memorable master password for a manager
• Generating a strong yet typeable Wi-Fi password
• Producing a passphrase you can recall without writing down
• Teaching why word-based passphrases are strong

• Use enough words that the entropy is comfortably high; more words means stronger.
• Keep the words random rather than a recognisable phrase.
• Use a unique passphrase per account, even though it is memorable.

• Choosing too few words, which lowers entropy below a safe level.
• Picking a famous quote instead of random words, which is far weaker.
• Reusing one memorable passphrase across many accounts.