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

Gotify is a lightweight, self-hosted server for sending and receiving messages in real-time via WebSocket. It provides a complete solution with REST API, sleek web UI, and official clients for desktop and mobile platforms—perfect for teams wanting full control over their notification infrastructure.
Developers, DevOps teams, and organizations seeking a self-hosted, open-source alternative to commercial push notification services. Anyone prioritizing privacy and control over their notification infrastructure will benefit from Gotify's simplicity and flexibility.

Your self-hosted, globally interconnected microblogging community

The Secure CommsOS™ for mission-critical operations

The open-source notification infrastructure. In-app Inbox component, E-mail, SMS, Push and Slack Integrations.

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

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

Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)

A list of Free Software network services and web applications which can be hosted on your own servers

Get up and running with Kimi-K2.5, GLM-5, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.

Production-ready platform for agentic workflow development.

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Virtual whiteboard for sketching hand-drawn like diagrams

JavaScript API for Chrome and Firefox

The world’s fastest framework for building websites.

:house_with_garden: Open source home automation that puts local control and privacy first.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Open Source Continuous File Synchronization