Passphrase Generator

You might have heard of passphrases, where random words are strung together to make a password.

If so, you probably know that a passphrase can be both easier to remember, and at the same time harder to guess, than the types of password that are used by most people. You might have seen XKCD's famous "correcthorsebatterystaple" comic ( ).

What you may not know is that secure passphrases must be entirely random, and humans are really bad at being random. That's where this app comes in: using a cryptographically secure random number generator and a variety of dictionaries (from 700 - 80,000 words), it generates random passphrases of your desired length.

- Use the settings to make your passphrase as secure as you need it
- The app's free of charge - and ad-free, too
- Variations are built in for US, Canadian and British English (automatically selected)

Disclaimer: although I've done my best to follow good security practices, security is complicated, and I can't guarantee that this app is fully secure - or that your device is malware-free, for that matter. I am not responsible for any security breaches that may occur as a result of your use of, and / or of problems with, this app.

You'll note that this app doesn't ask for internet permissions, so you can be assured that it doesn't send the passphrases anywhere. Nevertheless, that might not be enough reassurance for some critical applications, so for the truly paranoid I'd recommend printing the Diceware word list ( ) and selecting your words with physical dice.

Acknowledgements: the application logo was adapted from a CC-BY image by Delapouite ( ). The word lists used to generate the passphrases were adapted from SCOWL by Kevin Atkinson ( ).
Read more
26 total

What's New

New in version 1.1

A security update: previously it was possible to screenshot the app, which was a possible security risk; now screenshots are prevented (depending on your device).

There are now additional dictionaries for US and Canadian English, as well as the existing UK version (automatically selected from your device settings). Also, some offensive words have been removed.

The user interface is now more consistent in style.
Read more

Additional Information

March 6, 2014
Current Version
Requires Android
4.0 and up
Content Rating
Offered By
Steven Eddies
©2021 GoogleSite Terms of ServicePrivacyDevelopersAbout Google|Location: United StatesLanguage: English (United States)
By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments Terms of Service and Privacy Notice.