Diceware Passphrase Generator
Create long random-word passphrases that are easier to remember and better suited to manual typing.
We do not store any of your data.
This page focuses on Diceware-style passphrases: longer secrets built from random words instead of a short string of mixed characters. They are useful when you want something strong but still practical to type by hand.
Why this page is useful
Built for memorability
Random words are often easier to remember than a short dense string of mixed characters.
Better for manual typing
A long word-based phrase is usually easier to re-enter without mistakes on phones, laptops, and recovery screens.
Flexible output options
You can change word count, separators, capitalization, and number suffixes to fit the account you are securing.
How to use it well
Start with enough words
Choose a longer phrase instead of a short one. More random words usually matter more than cosmetic complexity.
Pick a format you can type reliably
Use spaces, hyphens, or dots based on what the website accepts and what you are least likely to mistype.
Keep it unique to one purpose
If you use a Diceware-style phrase for a vault or recovery flow, do not reuse that same phrase anywhere else.
Common mistakes to avoid
Using too few words
A phrase that is too short loses much of the strength that makes Diceware-style formats attractive.
Turning it into a quote
Song lyrics, sayings, and familiar phrases are easier to predict than unrelated random words.
Reusing one memorable phrase
Even a strong passphrase becomes risky if the exact same one protects multiple accounts.
Why use a Diceware-style passphrase?
Several unrelated random words can be easier to remember, dictate, and re-enter without mistakes. With enough words, a passphrase can be strong enough for vaults, recovery kits, and other high-value logins.
Password vs passphrase
Diceware-style passphrases are best when you want a strong login that still feels realistic to type and remember.
Random password
Best when a site allows password manager autofill and you want maximum compactness.
Diceware passphrase
Best when you value readability, manual typing, and long random word combinations.
How to choose
Use a random password for compact logins and a long passphrase for master-password-style use cases.
On-device privacy
The generator works locally on your device. Your words, settings, and output stay in your browser instead of being sent to a server.
Frequently asked questions
What is a Diceware passphrase?
It is a passphrase made from multiple random words instead of a short mixed-character password.
Is Diceware good for a master password?
Yes. A long random multi-word passphrase can work well for master passwords when it is unique and not based on a familiar quote or phrase.
Should I use spaces or hyphens?
Use whichever format is easier for you to type and compatible with the account. The main priority is keeping the words random and the phrase long enough.