Cost / License
- Free
- Open Source (GPL-3.0)
Application types
Platforms
- Windows
- Linux
- Ubuntu Touch
- Snapcraft
- Flathub
- Flatpak
- Linux Mobile



qTox is described as '- The most feature-rich Tox client; P2P instant messaging, audio and video calls' and is a instant messenger in the social & communications category. There are more than 25 alternatives to qTox for a variety of platforms, including Android, Linux, Windows, Mac and iPhone apps. The best qTox alternative is Signal, which is both free and Open Source. Other great apps like qTox are Tox, SimpleX Chat, Molly and FluffyChat.



Make video calls to anybody in the world with a private connection. Share the conversation by sharing url.

A fork of Signal for Android with proprietary Google binary blobs removed. Uses OpenStreetMap for maps and a websocket server connection, instead of Google Maps and Firebase Cloud Messaging.
Smoke Messenger is an open-source Instant Messenger that is known as the first mobile Messenger worlwide using the encryption algorithm McEliece. To be downloaded at F-Droid.org or Github.com. Smoke provides with its own Server-Software: SmokeStack-Echo-Server.



World's most secure P2P messenger. End-to-end encrypted, zero-server architecture, quantum-resistant roadmap. WebRTC direct connections, advanced ECDH + DTLS + SAS verification, full ASN.1 validation.











KeeperChat - The leading secure messaging app.
• Private vault for messages, photos and videos • Private, encrypted media gallery (nothing is saved on device’s camera roll) • Biometric login and self-destruct protection for vault • Message retraction and self-destruct timer • Tw.



Ricin aims to be a secure, lightweight, hackable and fully-customizable Tox client with focus on user experience. Development is lead by SkyzohKey.

Toxic is a client with an ncurses interface, written entirely in C. It has support for all basic features, as well as 1-on-1 audio/video chats, and is capable of working on bare-bones systems that lack graphical interfaces.

Tok is easy-to-use software that adopts peer-to-peer communication, end-to-end encryption technologies. With Tok,you can send messages, photos, videos and files of any type without anyone else listening in.


