full-featured password manager
KeePassXC is a free and open source password manager which helps you create strong passwords and manage them 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-256 and Twofish).
For help with this app, please see the following: