vPass

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Make your online accounts secure without having to remember hundreds of passwords. Visit https://www.vpass.info for more info.** Only remember one password
Using one password for all accounts is terribly risky. Remembering unique password for each account is impossible. vPass is the solution: you only need to remember master password, and vPass generates unique password for services you use. Read more.

** Secure by default
vPass generates mix of numbers and letters (by default 12 characters long) which are virtually impossible to brute-force.

** Only takes a couple of key strokes
vPass is very keyboard-friendly. Open web-page, focus on a password field, open vPass, enter master password, hit Enter, done!

** Your master password does not leave your device
There is no data transfer between your browser and vPass server. It's 100% client-side. You can even host vPass yourself, for ultimate security.

** Works on any platform with web browser
Windows, Mac OS X, Linux, Android, iOS, Windows Phone, webOS, and any future OS too.

** Works for any service, not only web
You can generate password no just for web service, but for anything that can be referred to as "username". I actually use it to secure passwords for Linux users such as "root", "www", etc.