
Roundcube Webmail is a browser-based multilingual IMAP email client featuring a modern, application-like user interface. It provides comprehensive email functionality with full customization options through plugins and skins, making it an ideal self-hosted alternative to commercial webmail solutions.
Roundcube is designed for system administrators, hosting providers, and organizations seeking a self-hosted, open-source webmail solution with professional functionality and extensive customization capabilities.

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Thunderbird for Android โ Open Source Email App for Android (fka K-9 Mail)

mailcow: dockerized - ๐ฎ + ๐ = ๐

All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).

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 worldโs 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