KeePass for Windows

KeePass is an open-source password manager that allows you to securely manage your passwords. All your passwords can be stored in one database that is locked with a master key or key file. You only need to remember one master password to unlock the entire database. Twofish and AES are the most secure encryption algorithms currently available to protect your databases.

KeePass is free and open source (OSI certified). You can view the full source and verify that the encryption algorithms have been correctly implemented.