Passphrase Generator: Strong Password Made of Words
Create a strong, memorable password made of random words. Based on the Diceware method, this tool generates secure passphrases that are easy for humans to remember but impossible for computers to crack. 100% secure. Nothing uploaded, nothing stored.
- 100% secure and private
- Diceware Standard
- Crypto-Secure RNG
- Highly Memorable
Your Passphrase
Separator
- 100% Secure
- Crypto Random
- No Storage
- No Sign-up
- No Watermark
Why use words instead of symbols?
For years, people were told to use complex passwords like P@ssw0rd!123. The problem? Humans are terrible at remembering random gibberish. We end up writing them on sticky notes or reusing them across dozens of sites.
A passphrase flips the script. By using a sequence of random, unrelated words like Velvet-Mango-Cobra-Lemon-Tiger, you create a password that is highly secure but tells a weird little story in your head, making it drastically easier to memorize. Because our generator uses cryptographically secure randomness, each word adds a massive amount of entropy.
Passphrase Math: How secure is it?
Entropy is measured in bits. Each additional bit doubles the amount of time it takes to crack the password. Here is how many words you need.
| Word Count | Entropy | Example | Time to Crack |
|---|---|---|---|
| 4 words | ~32 bits | apple-cobra-mango-tiger | Minutes to hours |
| 6 words | ~48 bits | apple-cobra-mango-tiger-lake-king | Centuries |
| 8 words | ~64 bits | apple-cobra-mango-tiger-lake-king-silver-moon | Billions of years |
Are passphrases vulnerable to dictionary attacks?
No. While a passphrase uses dictionary words, an attacker cannot just try common words in sequence. Because the words are chosen completely at random from a list of 7,776 words (the standard Diceware list), the number of combinations is astronomical. For a 6-word passphrase, there are 221 trillion possible combinations. Even a supercomputer testing 100 billion guesses per second would take over 70 years to crack it. An 8-word passphrase makes it mathematically impossible to crack before the sun burns out.
Why this tool is the best choice
Everything runs on your device. Faster, safer and free from the usual online-generator trade-offs.
| Feature | TToolDeck | Typical Generators |
|---|---|---|
| Easy for humans to remember | Yes | No |
| Easy to type on mobile/TV | Yes | No |
| Cryptographically secure | Yes | Partial |
| Diceware standard supported | Yes | No |
| Resistant to dictionary attacks | Yes | Partial |
| Live entropy and crack-time meter | Yes | Partial |
| No upload, 100% offline | Yes | No |
| No watermark or branding | Yes | Partial |
All security tools
Free browser-based security tools. Nothing uploaded, ever.
Passphrase Generator
You are hereStrong, memorable passwords made of random words.
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Create mock credentials for QA and database testing.
How to generate a passphrase
- 1
Choose your word count
Slide to select how many words you want. 6 words is standard, while 8 words provides maximum security for critical accounts.
- 2
Customize the format
Pick your preferred separator (like a hyphen or space). You can also toggle capitalization and add a number.
- 3
Copy and save
Click the copy button and paste your new passphrase into your password manager or app.
Everything you get for free
Diceware Methodology
We use a curated list of short, easy-to-type words, selecting them completely at random using your browser's cryptographically secure RNG (CSPRNG).
Memorable by Design
A sequence like "Cedar-Mango-Velvet-Lion" paints a picture in your mind, making it drastically easier to memorize than a random string like "Xk9@#mP2!".
Custom Separators
Choose how the words are joined together. Use hyphens, dots, underscores, spaces, or plus signs to fit the requirements of any website.
Capitalization & Numbers
Easily capitalize the first letter of each word and append a random number to satisfy strict password policies without breaking the pattern.
Live Entropy Meter
See exactly how strong your passphrase is as you add words. The meter calculates the bits of entropy and estimates the time to crack.
100% Private
No servers, no logs, no history. Everything is generated locally on your device. If you close the tab, the passphrase is gone forever.
What people use it for
Master Passwords
Use a 6 to 8-word passphrase to unlock your password manager (like Bitwarden or 1Password). It is the one password you actually need to remember, so make it memorable but unbreakable.
Wi-Fi & Router Passwords
Typing a random string of symbols on a TV remote, smart TV, or games console is a nightmare. A passphrase with a simple hyphen separator is incredibly easy to type.
Disk Encryption (BitLocker)
When your computer boots up, you have to type your decryption password manually. A passphrase is fast to type and provides the length required for strong disk encryption.
Accounts you share
If you have to share a Netflix or utility account with family over the phone, a passphrase is much easier to dictate than "capital X, dollar sign, lower-case q".
Questions people ask
What is a passphrase?
A passphrase is a sequence of random words used as a password (e.g., "Cedar-Mango-Velvet-Lion"). Because it is made of words, it is much easier to remember and type than a random string of characters, but still provides immense security because the words are chosen entirely at random.
Why is a passphrase better than a random password?
A 4-word passphrase like "correct-horse-battery-staple" is easy for a human to memorize but incredibly hard for a computer to crack. A random string like "Xk9@#mP2!" is very hard for a human to remember, often leading people to write it down, which is a major security risk.
Is this a Diceware generator?
Yes! This tool follows the Diceware method. It uses a curated list of short, easy-to-type words and selects them using a cryptographically secure random number generator (CSPRNG).
How many words should I use?
6 words is the modern standard for personal accounts. 8 words or more is recommended for highly sensitive accounts like your banking or password manager master password.
Are passphrases vulnerable to dictionary attacks?
No. While it uses dictionary words, the sheer number of combinations makes it unbreakable. A 6-word passphrase using our list has 8 billion trillion combinations. Even at 1 trillion guesses per second, it would take centuries to crack.
Is this safe to use?
Absolutely. The generation happens 100% locally in your browser. No passphrases are sent to our servers, logged, or stored anywhere.
Can I use symbols instead of hyphens?
Yes. You can choose from hyphens, dots, underscores, spaces, and plus signs. Many sites accept hyphens, but if a site requires a special character, adding a plus sign is a great option.
Do I need a number in my passphrase?
Not strictly for security, but many websites require at least one number. Toggling "Append a random number" will add a 2-digit number to the end, satisfying the requirement without making it hard to remember.
Should I capitalize the words?
Capitalizing the first letter of each word makes it slightly easier to read and increases the entropy, but it does require you to hold the Shift key when typing on mobile. It is optional.
What is entropy?
Entropy is a measure of how unpredictable a password is, measured in bits. Every additional bit doubles the security. A 6-word passphrase provides about 48-60 bits of entropy, while an 8-word passphrase provides 64-80 bits, which is virtually uncrackable.
Your passphrases stay on your device
There is no upload step and no account. The generation is done by your browser using your own processor, and the passphrase is saved straight to your clipboard. Nothing is sent to a server. Read how we keep it private.