KeePass is a free, open-source, light-weight and easy-to-use password manager.
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).
I prefer another Free program: CyberScrub KeyChain Password Manager and Auto Form Filler
http://www.cyberscrub.com/keychain