KeePassX is described as 'Application for people with extremly high demands on secure personal data management. It has a light interface, is cross platform and published under the terms of the GNU General Public License' and is a very popular password manager in the security & privacy category. There are more than 100 alternatives to KeePassX for a variety of platforms, including Windows, Mac, Android, iPhone and Linux apps. The best KeePassX alternative is Bitwarden, which is both free and Open Source. Other great apps like KeePassX are KeePassXC, KeePass, Proton Pass and LastPass.
Mac-centric interface to KEEPASS databases. I've used this extensively to pass KEEPASS dbs between Windows, Mac, and LINUX and it works flawlessly.