KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.

bitwarden - Bitwarden is a free and open source password management solution for individuals, teams, and business organizations.

AuthPass - Manage all your passwords across devices. Support for iOS, Android, Mac OS, Linux and Windows. Compatible with the popular Keepass (kdbx) format.

KeePassDroid - KeePassDroid is an implementation of the KeePass password safe for the Android platform.

1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.

Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.