KeePassX is a free/open-source password manager or safe 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-disk. So you only have
to remember one single master password or insert the key-disk to unlock the
whole database. The databases are encrypted using the best and most secure
encryption algorithms currently known (AES and Twofish).