Technitium Bit Chat is a secure, peer-to-peer (p2p), open source instant messenger designed to provide end-to-end encryption. ...

TorChat is a peer to peer instant messenger with a completely decentralized design, built on top of Tor's location hidden serv ...

The goal of Gajim is to provide a full featured and easy to use Jabber client. Gajim works nicely with GNOME, but does not req ...

Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that onl ...

Bitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is de ...

Off-the-Record (OTR) Messaging allows you to have private conversations over any instant messaging (MSN,Gtalk, Facebook and so ...

WeeChat is a fast, light and extensible chat client. It runs on many platforms (including Linux, BSD and Mac OS). WeeChat is: ...

Adium is a free and open source instant messaging application for Mac OS X, written using Mac OS Xs Cocoa API, released under ...

I2P is an anonymizing network, offering a simple layer that identity-sensitive applications can use to securely communicate. A ...

Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender control.

Shredder – Irreversibl ...

ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. You can connect to your existing ac ...

With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with ...

Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open XMPP network. Localiz ...

Ring positions itself as a potential free Skype replacement Open Source and cross-platform. Ring gives you a full control over ...