It is safe is to use strong enough password and use different password for different sites. However, it makes harder to remember. KeePassXC can store your password in your own database in a safe way. KeePassXC is the Community Edition of the open source password management software KeePass.
The complete database is always encrypted with the industry-standard AES (alias Rijndael) encryption algorithm using a 256 bit key. KeePassXC uses a database format that is compatible with KeePass Password Safe. Your wallet works offline and requires no Internet connection.
KeePassXC is a community fork of KeePassX, the cross-platform port of KeePass for Windows. Every feature works cross-platform and was thoroughly tested on multiple systems to provide users with the same look and feel on every supported operating system. This includes the beloved Auto-Type feature.
The full source code is published under the terms of the GNU General Public License.
We see open source as a vital prerequisite for any security-critical software product. For that reason, KeePassXC is and always will be free as in freedom (and in beer). Contributions by everyone are welcome!
For your safety, we recommend that you download from the official website.
Please remember to check the installation package signature after downloading, and pay attention to check the required components during the installation process.