This article covers the 9 of the best open source password managers for Linux users. Each of these password managers has its own pros and cons, so it's important to do your research and choose the one that best suits your needs. 

Main features of open source Password Managers Software includes:

1. Automatic Password Generation: 

Most open source Password Managers are equipped with an automatic password generation feature which helps users generate strong, unique passwords with ease. This feature makes it much easier to secure your online accounts with a unique, secure password. 

2. Multi-Platform Support: 

They are available on multiple platforms such as Windows, Mac, Android and iOS. This makes it easy to access your passwords from all of your devices.

3. Secure Password Storage: 

They store your passwords securely in an encrypted database. This ensures that your passwords are kept private and protected.

4. Password Synchronization: 

They can synchronize your passwords across all of your devices. This makes it easier to access your passwords from any device you're using.

5. Two-Factor Authentication: 

They come with two-factor authentication. This is an extra layer of security which helps keep your passwords safe from unauthorized access.

6. Password Sharing: 

They allow users to securely share passwords with other users. This is especially helpful for teams or families who need to share passwords for certain accounts.

7. Password Hints: 

They allow you to add password hints to help you remember your passwords. This is a useful feature for users who may have difficulty remembering their passwords.

8. Browser Integration: 

Most open source Password Managers are equipped with browser integration. This allows you to easily access your passwords from your web browser.

9. Password Audits: 

Password Managers can help you audit your passwords and alert you to weak or reused passwords. This is a great way to ensure that your passwords are strong and secure.

10. Cloud Backup: 

They can back up your passwords to the cloud. This helps ensure that your passwords are safe and secure even if your device is lost or stolen.