Cost / License
- Free
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Online








Quaternion is a cross-platform Qt5-based desktop IM client for Matrix, a reference desktop application using libQMatrixClient. Source code, issue tracker, roadmap etc. can be found at GitHub. Releases (with links to cross-platform source code archives, as well as binaries for...






TeleGuard is the data-secure messenger from Swisscows. TeleGuard encrypts every message and all telephone calls with encryption algorithm currently available: SALSA 20. TeleGuard servers are located in Switzerland, they are not subject to the data protection laws of the EU /...







Chitchatter is a free (as in both price and freedom) communication tool. Designed to be the simplest way to connect with others privately and securely, it is:

µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs fast! µTox is available for Windows, OS X, and Linux (Android support is experimental), with full support for chat, file transfers, audio/video calling, and desktop sharing...

Technitium Mesh is a secure, anonymous, peer-to-peer (p2p), open source instant messenger designed to provide end-to-end encryption. Primary aim of developing this instant messenger is to provide privacy which is achieved using cryptography and anonymity using Tor network.

GameVox is a voice, video, and text chat platform for gaming communities, built by LightSpeed Gaming — a small, independent company with well over a decade of experience in voice communication and game server hosting. Self-funded. No investors, no ads, no data sales.




Prose is a distributed, open-source, and native platform for workplace communication.







Vector encompasses the ideals of freedom through free and open-source technology, using a "Privacy by Principle" approach. This means that privacy is not a feature or add-on, but the core foundation that Vector is built upon, which is granted and accessible to everyone.
Ricochet Refresh is the new updated version of Ricochet, supported by Blueprint for Free Speech.. We are a non-government, not-for-profit organisation working to safeguard the freedom of expression for whistleblowers, activists, and everybody else, worldwide.



OSHI - The most private messenger. End-to-end encrypted with steganography, AI offline, Map Offline, Itineary and POI offline, Lora ready, bot API, mesh networking, covert channels, and zero metadata. No phone number required.


twinme messenger protects your identity & intimacy: no information to identify you and your contacts; relationships under your full control are private, non-transferable.




Chat on the Jabber network (XMPP protocol); focus on features for gateway users The Cheogram Android app allows you to join a worldwide communication network.




monocles chat is a fork of blabber.im and Conversations with some changes, to improve usability.




Kontalk is a secure instant messenger, allowing you to send and receive text, image and voice messages (other file types coming soon) to and from other Kontalk users completely free of charge.








Monal is an open source iOS and macOS XMPP Chat-Client. It can connect to any standard XMPP chat server such as Gtalk or Facebook chat.



Decentralized messaging client for Android, Linux and macOS allowing you to communicate with people or LXMF-compatible systems over Reticulum networks using LoRa, Packet Radio, WiFi, I2P, or any other medium Reticulum supports.





Cloud-based call center software with 50+ advanced features, quick setup, CRM and helpdesk integrations, centralized management, and real-time analytics.




Skred is the first secure peer-to-peer instant messaging app - No need for an email address or phone number to use it.
Skred is free, without subscription, without a provider, without a SIM card, and without leaving a trace.



