Keepass2Android Offline is a free, open source app that helps you manage your password in a safe and easy way. The app uses KDBX files, the format used by the popular KeePass2.x Password Safe application for Windows.
The first thing to do when you start using Keepass2Android Offline is create your master password, which you'll need to access all the other passwords you keep in the app. This password is especially important, so make sure it's safe and you're the only one who knows it.
As you'd expect, Keepass2Android Offline is compatible with almost any Internet browser for Android: Google Chrome, Mozilla Firefox, Opera, or any other browser. You can save your passwords on any of them with just a tap to the screen.
Keepass2Android Offline is an excellent password manager for Android that gets the job done efficiently. It might not have a beautiful interface, but it doesn't really need one, either. An especially useful app for people with lots of different passwords and accounts on different websites.