Tammy is a fast, privacy-focused Matrix messenger with a clean, modern interface. It uses the decentralised Matrix protocol, avoiding reliance on a single communication provider or server.
The application is built with Kotlin and Compose Multiplatform, allowing it to offer a consistent experience across Linux, Android, iOS, Windows, macOS and the web. Tammy is also designed as a customisable, white-label messenger based on Trixnity Messenger.
This is free and open source software.
Key Features
- Uses the decentralised Matrix communication protocol.
- End-to-end encryption protects private conversations.
- Modern and intuitive user interface with in-app guidance.
- Minimal data retention with a strong focus on privacy.
- System notifications on Linux, Android, iOS, Windows, macOS and the web.
- Built with Kotlin and Compose Multiplatform.
- Available for Linux as a 64-bit Flatpak.
- Supports mobile, desktop and web platforms.
- Can be customised and white-labelled for other deployments.
- Designed to remain resilient if individual Matrix servers become unavailable.
Website: gitlab.com/connect2x/tammy
Support:
Developer: connect2x GmbH.
License: GNU Affero General Public License v3.0
Tammy is written in Kotlin. Learn Kotlin with our recommended free books and free tutorials.
Related Software
| Matrix Clients | |
|---|---|
| Fractal | Matrix client for GNOME |
| NeoChat | Fork of Spectral |
| Cinny | Focuses primarily on a simple, elegant and secure interface |
| nheko | Desktop client using Qt and C++ |
| Element | Glossy client with an emphasis on performance and usability |
| FluffyChat | Multi-platform Matrix client with a simple and clean user interface |
| Quaternion | Qt5-based IM client |
| Commet | Feature rich experience while maintaining a simple interface |
| Moment | Fancy, customizable, keyboard-operable Matrix chat client |
| SchildiChat | Matrix client / Element Web/Desktop fork |
| Sable | Polished messaging app with a strong focus on everyday usability |
| Hydrogen | Minimal Matrix chat client |
| Extera | Feature-rich chat app derived from FluffyChat with a fresh approach |
| Tammy | Privacy-minded messenger with secure conversations and clean design |
| Syphon | Privacy centric Matrix client |
| Chatty | Unified messaging app designed for desktop and mobile devices |
| Chats | Messaging application for mobile and desktop |
| Quadrix | Minimal, simple, multi-platform chat client |
| Matrix | Modern chat app with rooms, accounts, media and encryption |
| Spectral | Glossy native client designed with simplicity in mind |
| Mirage | Fancy, customizable, keyboard-operable Matrix chat client |
| kazv | Convergent Matrix client and secure messaging app |
Read our verdict in the software roundup.
 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
Please read our Comment Policy before commenting.