
Signal
TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or...
µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs fast!.
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 (both as video and inline screenshots). It also supports text group chats with audio groups pending the next Toxcore update.
Video calling Encrypted chat Decentralized End to end encryption
chat-clients instant-messaging video-calling video-chat voice-chat encrypted-chat decentralized end-to-end-encryption free-calls secure-chat file-transfer