Open Source Password Management Software
Master Password
Master Password is password manager based on an ingenious password generation algorithm that guarantees your passwords can never be lost. While most password managers store your passwords on a server or your local device, Master Password generates unique passwords on the fly, based on your username, the site or application and time. This approach makes Master Password safer from loss, theft, problems with backups, sync, confiscation, snooping, and more.
Keepass2Android
Keepass2Android is a password manager application specifically design for your mobile Android device. It allows to store and retrieve passwords and other sensitive information in a file called "database". This database is secured with a so-called master password. The master password typically is a strong password and can be complemented with a second factor for additional security. The password database file can be synchronized across different devices. This works best using one of the built-in cloud storage options, but can also be performed with third-party apps. Keepass2Android is compatible with Keepass 1 and Keepass 2 on Windows and KeepassX on Linux.
LessPass
With LessPass you can manage your registrations, login and passwords with is. LessPass is a password manager that computes a unique password using a site, login, and a master password for you mobile Android or iOS device or as a browser extension for Google Chrome and Firefox. Since a password manager, or any software for that matter is as secure as it is transparent, the LessPass source code is available on Github and can be inspected and perfected by anyone in the community.
KeePassDroid
KeePassDroid is a port of the KeePass Password safe for the Android platform. With KeePassDroid password manager you can safetly and securely manage passwords for your mobile android device.
Buttercup
Buttercup is a free and open-source password manager, available on all major platforms. With Buttercup you can track and store your login information for any service and device that you use. The application's securely encrypted vault allow you to store account information securely with additional support for 2FA/OTP (TOTP).