Cryptool wants to help you to protect the information that matter most to you. We don't hide anything that's going on under the hood we show the algorithms and data input/output as it is.

This is a non-profit open source solution and we are not interested in your data. Anyway we do not ask you to trust we ask you to **block** the Internet access **review** the code or even **build** the app yourself.

Main features:

- Lightweight application.
- Modern UI. Material You + support to light/dark theme.
- Multiple encryption configurations as conversations.
- Multiple message sources.
- Manual. Handle the input and output of the communication yourself.
- LAN. Communication within the connected Local Area Network. It is forgotten when the app stops.
- File. Use two files for communication. You can auto-sync and share the files for real time communication.
- SMS. Use your SMS provider. This option could have cost depending the contract with your provider.
- Keystore.
- Multiple algorithms and encryption configurations.
- Interoperable encryption.
- Clipboard control.
- Export/Import:
- Custom code protection.
- Filter data.
- Access code protection:
- Forget/Reset.
- Change.
- Biometric identification.

Know more: https://github.com/nfdz/Cryptool