Free Passphrase Generator
Memorable, strong multi-word passphrases.
What is the Passphrase Generator?
The strongest password is one you can actually remember and a computer can't guess — and a string of random words beats a short jumble of symbols on both counts. This passphrase generator strings together random words into something memorable like 'Bright-Otter-Anchor-42', and shows you roughly how strong it is.
Words are chosen with your browser's secure random generator, and nothing ever leaves your device.
Last updated: Aug 27, 2026
What does this tool do?
It picks random words from a large list and joins them with your chosen separator, optionally capitalising each word and adding a number. You control how many words to use, and it displays an entropy estimate — a measure of how hard the passphrase is to guess — so you can dial in the strength you want.
The result is easy to type and remember but very hard to crack.
Key features
Memorable & strong
Random words, not a symbol soup.
Secure randomness
Uses your browser's crypto generator.
Custom format
Word count, separator, caps, a number.
Entropy estimate
See the strength in bits.
Private
Nothing is uploaded — it runs on-device.
Example
Common use cases
- Everyone — A strong master password you can remember.
- Developers — Seed phrases for dev accounts and keys.
- Families — Shared Wi-Fi or device passphrases.
- Privacy-minded — High-entropy secrets with no upload.
- IT teams — Suggest memorable passphrases to users.
- Students — Learn what makes a password strong.
Benefits
- Easier to remember than random characters.
- High entropy makes guessing impractical.
- Generated securely and privately.
- Free with no sign-up.
Tips
- Four words is a solid baseline; use five or more for your most important accounts.
- Use a unique passphrase per account, and store them in a password manager so you don't have to memorise many.
- Adding a number and capitalisation nudges the strength up without hurting memorability.
- Never reuse a passphrase across sites — one breach shouldn't unlock everything.
- The entropy figure guides you: aim for 60+ bits for important accounts.
Common mistakes to avoid
Using too few words
Fix: Two or three words is guessable; use at least four, more for high-value accounts.
Reusing one passphrase everywhere
Fix: Generate a unique one per account so a single breach is contained.
Picking words yourself
Fix: Human-chosen words are predictable; let the secure generator do it.
Memorising dozens of them
Fix: Store them in a password manager and only memorise the one that unlocks it.
How it works
- 1
Choose your options
Word count, separator, capitalisation, number.
- 2
Generate
A fresh secure passphrase appears.
- 3
Copy and store
Save it in your password manager.
Frequently asked questions
A few random words are easier to remember and, at enough words, harder to crack than a short random password. This tool shows an entropy estimate so you can see the strength.
Words are chosen with your browser's cryptographically secure random generator, and nothing is ever sent to a server — it all runs on your device.
Four words is a good baseline; five or more for high-value accounts. Use a unique passphrase per account and store them in a password manager.
A few random words are easier to remember and, at enough words, harder to crack than a short random password. The entropy estimate shows the strength.
Words are chosen with your browser's cryptographically secure random generator, and nothing is sent to a server.
Four is a good baseline; five or more for high-value accounts. Use a unique one per account and a password manager.
Yes — free, no sign-up.
Conclusion
Generate a passphrase that's easy to remember and hard to crack — random words, your chosen format, and an entropy estimate to guide the strength. Use at least four words, a unique passphrase per account, and a password manager to keep them all.