Open source email service with a strong focus on security and privacy
Keybase Go library, client, service, OS X, iOS, Android, Electron
The original full-platform IM communication layer framework
A New Kind of Instant Messaging
Powerful open source team chat application
Built from the ground up for speed
Fast, secure email client with chat and kanban views
Home to the Signal Protocol and other cryptographic primitives
DefraDB is a Peer-to-Peer Edge Database
Amazon SNS message validation for PHP
Remote control. Support VNC, RDP, Terminal, SSH, TELNET etc
Open another computer's folder as if local; post-quantum encrypted P2P
German version of the "Plum Harbor" file sharing app.
bluetooth mesh chat, IRC vibes
Encrypted messaging, communities, voice chat, and file sharing.
An open-source file sharing app built using Next.js and Perplexity.
Document Management System and Content Management System
It's the simple cloud.
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
Cerberus Content Management System
Microsoft project for cloud-based client-server communication
Smoke: Android Crypto Chat Messenger
OpenDDS is open source publish/subscribe middleware
A place for all your chatting apps.
Unified Communications Server