The communications platform that puts data protection first.

🔥 The open-source notification infrastructure with fully functional embedded notification center 🚀🚀🚀

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬

Send push notifications to your phone or desktop using PUT/POST

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

Apprise - Push Notifications that work with just about every platform!

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably. Set up once and forever.

screen sharing for developers https://screego.net/

Mumble is an open-source, low-latency, high quality voice chat software.

Dendrite is a second-generation Matrix homeserver written in Go!

SimpleX - the first messaging platform operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!

💬 Typebot is a powerful chatbot builder that you can self-host.

Next-gen, Pusher-compatible, open-source WebSockets server. Simple, fast, and resilient. 📣

Free API for outgoing SMS

Next generation noIM application in your own workspace, not only another Slack/Discord/Rocket.chat

Live Helper Chat - live support for your website. Featuring web and mobile apps, Voice & Video & ScreenShare. Supports Telegram, Twilio (whatsapp), Facebook messenger including building a bot.

Online collaborative Whiteboard that is simple, free, easy to use and to deploy

RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.