"Correct horse battery staple."
That XKCD comic from 2011 made a serious point: a password like Tr0ub4dor&3 is harder to remember and easier to crack than four random common words strung together.
Fourteen years later, most password generators still default to character soup. The Password Generator at Ultimate Tools adds a free Passphrase tab — because passphrases are genuinely better for credentials you have to type by hand.
Password vs Passphrase — What the Numbers Say
| Random Password | Passphrase | |
|---|---|---|
| Example | kX!8rP@2nQvT |
cloud-river-maple-brave |
| Entropy (typical) | ~78 bits (12 chars, all charsets) | ~44 bits (4 words) |
| Memorability | Hard | Easy |
| Typing speed | Slow (special chars) | Fast |
| Best for | Password manager stored | Master passwords, device login |
A 4-word passphrase sits around 44 bits of entropy — solid for anything you type manually. A 6-word passphrase hits ~66 bits, which is genuinely strong for a master password.
How to Generate a Passphrase
- Open the free passphrase generator
- Click the Passphrase tab
- Set the number of words (3–7)
- Choose a separator:
-,_,., space, or none - Optionally capitalize words or append a 2-digit number
- Copy with one click
Examples the tool generates:
cloud-river-maple-brave
Frost.Edge.Vale.Kite.91
TIDE_PEARL_STORM_CEDAR
All generation uses crypto.getRandomValues() — cryptographically secure randomness, not Math.random().
When to Use a Passphrase
Password manager master password — This is the single most important credential you type by hand. A 5-word passphrase is memorable, strong, and survives you traveling without your device.
Device login — Computer, phone, or tablet login passwords are typed frequently. A passphrase is faster to type than random characters and stronger than most people's actual passwords.
WiFi network password — You type this once per device, often on a phone. A passphrase is far easier to read out to guests than $7kP!mQ9.
Anything you refuse to store in a password manager — Some people memorize a handful of critical passwords. Passphrases are the only type of password worth memorizing.
When to Use a Random Password Instead
If you're generating passwords that live inside a password manager — email, banking, social media — use the Password tab with full character randomness and 16+ chars. You're not typing these; your manager fills them in. Entropy-per-character is higher with full charset passwords, so use them where they're stored rather than memorised.
No Signup, No Server
Everything runs in your browser. 1Password charges for passphrase generation. This is free, with no account and no data sent anywhere.
Related Tools
- free password strength checker with entropy score — paste your new passphrase into the Strength Checker tab to see its entropy bits and estimated crack time against offline attacks
- SHA-256 hash generator online free — see how a passphrase looks after hashing — understand what authentication systems actually store, not the plaintext
- create QR code for WiFi network free — encode your WiFi passphrase as a QR code so guests scan to connect instead of typing a 4-word phrase
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