KeePass

KeePass Portable is the popular KeePass Password Safe packaged as a portable app, so you can securely carry your email, internet and other passwords with you. You can place KeePass Password Safe Portable on your iPod, USB flash drive, portable HDD or a CD and use it on any PC, without leaving any personal information behind.

KeePass 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).