Open Source, cross-platform application that offers secure chat and file sharing features.

RetroShare is a Open Source cross-platform, private and secure decentralised communication platform.
It lets you to securely chat and share files with your friends and family, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides filesharing, chat, messages, forums and channels.

Features

* Serverless, encrypted Chat & Filetransfer
* Multiple simultaneous downloads / uploads
* Search Friends
* Messages
* Forums
* UPnP / NAT-PMP port forwarding support
* GnuPG Authentication
* OpenSSL Encryption
* Plugins support
* Graphical User Interface written with Qt4 toolkit
* System tray integration

Notice: Under Windows you must install GPG4Win v1.1.4; RetroShare requires it without you can't create your RetroShare Key. The win32 installer automatically installs it, but you will need to first remove any more recent version of gpg4win.