MacPass is a free, open-source password manager, which helps you to manage your passwords in a secure way. It is a native OS X port of KeePass, the free, open-source, light-weight and easy-to-use password manager.
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)