The communications platform that puts data protection first.

Open-Source Notification Platform. Embeddable Notification Center, E-mail, Push and Slack Integrations.

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

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

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

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

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

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

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/

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

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

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

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

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

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.

Realtime server for reliable two-way communication to power-up any backend

Synapse: Matrix homeserver written in Python/Twisted.