You can message and share files inside your intranet without a server.
BeeBEEP is a secure (encryption based on Rijndael Algorithm, AES) peer to peer office messenger. You can talk and send files with all your colleagues inside a local area network such of an office, home or internet cafe without a server. BeeBEEP works also with VPNs. This serverless application is indispensable in all those places where privacy and security an essential requirement.
For more info visit: https://www.beebeep.net
GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search.
Current vers. w/ McEliece Algorithm.
GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite.
Main GUI features: Minimal & colorful Interface with Tabs in the East.
Microsoft & Qt MinGW deprecated Win32 & for Compiling:
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Secure P2P Instant Messenger running on .NET Framework 2.0. Uses server to store user information (user name, password, email address, friends list, log in state, IP address) in encrypted form. Uses custom designed symmetric encryption algorithm.