KWalletManager
Secure password wallet manager
KWalletManager is a tool to manage the passwords on your system. By using the Frameworks wallet subsystem it notonly allows you to keep your own secrets but also to access and manage the passwords of every application that integrates with the wallet.
The KDE Wallet system provides a secure way to store passwords and other secret information, allowing the user to remember only a single KDE Wallet password instead of numerous different passwords and credentials. . KWallet Manager is a utility for viewing and editing information stored in the KDE Wallet. . This package is part of the KDE SC utilities module.
How to install KWalletManager in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install kwalletmanager in Ubuntu
sudo apt install kwalletmanager