Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports prot ...

TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees ...

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 ...

Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved ...

Telegram is a messaging app created by former VK creators with a focus on speed and security. It’s superfast, simple and free. ...

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

Shredder – Irreversibl ...

Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat ...

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

Riot (formerly Vector) is an opensource interoperable app running on Web, iOS and Android. It is built around chat rooms, both ...

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

Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized ...

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

Open source Jabber (XMPP) client with multi-account support, clean and simple interface. Being both free (as in freedom!) and ...