What is KeePass?
Today
you need to remember many passwords. You need a password for the
Windows network logon, your e-mail account, your homepage's FTP
password, online passwords (like website member account), etc. etc.
etc. The list is endless. Also, you should use different passwords for
each account. Because if you use only one password everywhere and
someone gets this password you have a problem... A serious problem. The
thief would have access to your e-mail account, homepage, etc.
Unimaginable.
KeePass is a free open source password manager, which helps you to
manage your passwords in a secure way. You can put all your passwords
in one database, which is locked with one master key or a key file. So
you only have to remember one single master password or select the key
file to unlock the whole database. The databases are encrypted using
the best and most secure encryption algorithms currently known (AES and
Twofish). For more information, see the features page.
Is it really free?
Yes, KeePass is really free, and more than that: it is open source (OSI
certified). You can have a look at its full source and check whether
the encryption algorithms are implemented correctly.
source: http://keepass.info/