Wagtail

Content Management Systems (CMS)·Python

Django content management system focused on flexibility and user experience.

SimpleX Chat

Communication - Custom Communication Systems·Haskell

The most private and secure chat and applications platform - now with double ratchet E2E encryption.

Lila

Games·Scala

Ad-less chess server powering lichess.org, with official iOS and Android client apps.

koel

Media Streaming - Audio Streaming·PHP

Personal music streaming server that works.

Calibre Web

Document Management - E-books·Python

Browse, read and download eBooks using an existing Calibre database.

SearXNG

Search Engines·Python

Internet metasearch engine which aggregates results from various search services and databases (Fork of Sea…

Beets

Media Streaming - Audio Streaming·Python

Music library manager and MusicBrainz tagger (command-line and Web interface).

Flarum

Communication - Social Networks and Forums·PHP

Delightfully simple forums.

transfer.sh

File Transfer - Single-click & Drag-n-drop Upload·Go

Easy file sharing from the command line.

Warpgate

Remote Access·Rust

Fully transparent SSH, HTTPS, Kubernetes, MySQL and Postgres bastion/PAM that doesn't need additional clien…

Spree Commerce

E-commerce·Ruby

Spree is a complete, modular & API-driven open source e-commerce solution for Ruby on Rails.

Mail-in-a-Box

Communication - Email - Complete Solutions

Turns any Ubuntu server into a fully functional mail server with one command.

QloApps

Booking and Scheduling·PHP

Customizable and intuitive web-based hotel reservation system and a booking engine.

Transmission

File Transfer - Peer-to-peer Filesharing·C++

Fast, easy, free Bittorrent client.

Luanti

Games·C++

Voxel game engine (formerly Minetest).

Wallabag

Archiving and Digital Preservation (DP)·PHP

Wallabag, formerly Poche, is a web application allowing you to save articles to read them later with improv…

Mealie

Recipe Management·Python

Material design inspired recipe manager with category and tag management, shopping-lists, meal-planner, and…

Tinode

Communication - Custom Communication Systems·Go

Instant messaging platform.

Calibre Web Automated

Document Management - E-books

All-in-one solution, combining the modern lightweight web UI from Calibre-Web with the robust, versatile fe…

GoatCounter

Analytics·Go

Easy web statistics without tracking of personal data.

Magento Open Source

E-commerce·PHP

Leading provider of open omnichannel innovation.

YOURLS

URL Shorteners·PHP

YOURLS is a set of PHP scripts that will allow you to run Your Own URL Shortener.

OpenEMR

Health and Fitness·PHP

Electronic health records and medical practice management solution.

Kan

Task Management & To-do Lists

Flexible kanban app that helps you organise work, track progress, and deliver results (alternative to Trello).