Communication

Decentralized encrypted messaging client built on the Matrix protocol.

Simple server for sending and receiving push notifications with a web UI and REST API.

Free and open-source video conferencing platform that works in the browser.

Secure team messaging platform designed as a Slack alternative for organizations.

Simple HTTP-based push notification service that lets you send notifications to your phone via PUT/POST.

Team communication platform with channels, direct messaging, and video calls.

Threaded team chat that combines real-time messaging with email-like topic threading.