Open Event Server
Enables organizers to manage events from concerts to conferences and meet-ups.
Omeka
Create complex narratives and share rich collections, adhering to Dublin Core standards with Omeka on your server, designed for scholars, museums, libraries, archives, and enthusiasts.
Omeka S
Omeka S is a web publication system for universities, galleries, libraries, archives, and museums. It consists of a local network of independently curated exhibits sharing a collaboratively built pool of items, media, and their metadata.
OctoBot
Open-source cryptocurrency trading bot.
Oddmuse
A simple wiki engine written in Perl. No database required.
Neos
Neos or TYPO3 Neos (for version 1) is a modern, open source CMS.
NocoDB
No-code platform that turns any database into a smart spreadsheet (alternative to Airtable or Smartsheet).
NodeBB
Forum software built for the modern web.
nefarious
Web application that automates downloading Movies and TV Shows.
Mylar3
Automated Comic Book (cbr/cbz) downloader program for use with NZB and torrents.
Navidrome Music Server
Modern Music Server and Streamer, compatible with Subsonic/Airsonic.
moOde Audio
Audiophile-quality music playback for the wonderful Raspberry Pi family of single board computers.
MTA:SA
Multi Theft Auto (MTA) is a software project that adds network play functionality to Rockstar North’s Grand Theft Auto game series, in which this functionality is not originally found.
Moodle
Moodle is a learning and courses platform with one of the largest open source communities worldwide.
Mobilizon
A federated tool that helps you find, create and organise events and groups.
Mindustry
Factorio-like tower defense game. Build production chains to gather more resources, and build complex facilities.
MindsDB
MindsDB is an open source self hosted AI layer for existing databases that allows you to effortlessly develop, train and deploy state-of-the-art machine learning models using standard queries.
MetaTube
A Web GUI to automatically download music from YouTube add metadata from Spotify, Deezer or Musicbrainz.
Mere Medical
With Mere Medical, you can finally manage all of your medical records from Epic MyChart, Cerner, and OnPatient patient portals in one place. Privacy-focused, self-hosted, and offline-first.
Mejiro
An easy-to-use PHP web application for instant photo publishing.
Medusa
Automatic Video Library Manager for TV Shows. It watches for new episodes of your favorite shows, and when they are posted it does its magic.
Mathesar
An intuitive UI for managing data collaboratively, for users of all technical skill levels. Built on Postgres – connect an existing DB or set up a new one.
Manage My Damn Life
Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars.
Mautic
Mautic is marketing automation software (email, social and more).
Mainsail
A modern and responsive user interface for the Klipper 3D printer firmware. Control and monitor your printer from everywhere, from any device.
Matchering
A containerized web app for automated music mastering (alternative to LANDR, eMastered, and MajorDecibel).
Matomo
Google Analytics alternative that protects your data and your customers’ privacy.
Maloja
Self-hosted music scrobble database (alternative to Last.fm).
Mailchimp Open Commerce
Customizable, real-time reactive, Javascript commerce platform (formerly Reaction Commerce).
Mailman
The Gnu mailing list server.
Maddy Mail Server
All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon.
LMS
Access your self-hosted music using a web interface.
Lidarr
Lidarr is a music collection manager for Usenet and BitTorrent users.
LinkAce
A bookmark archive with automatic backups to the Internet Archive, link monitoring, and a full REST API. Installation is done via Docker, or as a simple PHP application.
Librum
A modern e-book reader and library manager that supports most major book formats, runs on all devices and offers great tools to boost productivity.
Laravel Simple Password Manager
Simple Password manager.
LazyLibrarian
LazyLibrarian is a program to follow authors and grab metadata for all your digital reading needs. It uses a combination of Goodreads Librarything and optionally GoogleBooks as sources for author info and book info.
Kyoo
Innovative media browser designed for seamless streaming of anime, series and movies, offering advanced features like dynamic transcoding, auto watch history and intelligent metadata retrieval.
Kubero
A self-hosted Heroku PaaS alternative for Kubernetes that implements GitOps.
kiwix-serve
HTTP daemon for serving wikis from ZIM files.
Kubek
Web management panel for Minecraft servers.
Koha
Enterprise-class ILS with modules for acquisitions, circulation, cataloging, label printing, offline circulation for when Internet access is not available, and much more.
Kavita
Cross-platform e-book/manga/comic/pdf server and web reader with user management, ratings and reviews, and metadata support.
Kasm Workspaces
Streaming containerized apps and desktops to end-users. Examples include Ubuntu in your browser, or simply single apps such as Chrome, OpenOffice, Gimp, Filezilla etc.
Judge0 CE
Open source API to compile and run source code.
Kallithea
Source code management system that supports two leading version control systems, Mercurial and Git, with a web interface.
Islandora
Drupal module for browsing and managing Fedora-based digital repositories.
Jami
Free and universal communication platform which preserves the user’s privacy and freedoms (formerly GNU Ring).
ITFlow
Client IT Documentation, Ticketing, Invoicing and Accounting Web Application for MSPs (Managed Service Providers).
Jauth
Lightweight SSL/TLS reverse proxy with authorization (via Telegram and SSH) for self-hosted apps.
Janus
General-purpose, lightweight, minimalist WebRTC Server.
iRedMail
Full-featured mail server solution based on Postfix and Dovecot.
Inboxen
Inboxen is a service that provides you with an infinite number of unique inboxes.
ILIAS
ILIAS is the Learning Management System that can cope with anything you throw at it.
I, Librarian
I, Librarian can organize PDF papers and office documents. It provides a lot of extra features for students and research groups both in industry and academia.
HyperKitty
Open source Django application to provide a web interface to access GNU Mailman v3 archives.
httprd
Single-script remote desktop via web browser.
Homepage by gethomepage
A highly customizable homepage (or startpage / application dashboard) with Docker and service API integrations.
HRConvert2
Drag-and-drop file conversion server with session based authentication, automatic temporary file maintenance, and logging capability.
homebox
Suite of Ansible scripts to deploy a fully functional mail server on Debian. Unobtrusive and automatic as much as possible, focusing on stability and security.
Headphones
Automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent, Deluge and Blackhole.
Habitica
Habit tracker app which treats your goals like a Role Playing Game. Previously called HabitRPG.
gonic
Lightweight music streaming server. Subsonic compatible.
Gokapi
Lightweight server to share files, which expire after a set amount of downloads or days. Similar to the discontinued Firefox Send, with the difference that only the admin is allowed to upload files.
Glowing Bear
A web frontend for WeeChat.
GNUnet
Free software framework for decentralized, peer-to-peer networking.
Gibbon
The flexible, open source school management platform designed to make life better for teachers, students, parents and leaders.
Git Annex
File synchronization between computers, servers, external drives.
gathio
Self-destructing, shareable, no-registration event pages.
Ganymede
Twitch VOD and Live Stream archiving platform. Includes a rendered chat for each archive.
Galette
Galette is a membership management web application towards non profit organizations.
Fluidd
Lightweight & responsive user interface for Klipper, the 3D printer firmware.
Flipt
Feature flag solution with support for multiple data backends (alternative to LaunchDarkly).
FileShelter
FileShelter is a self-hosted software that allows you to easily share files over the Internet.
Files Sharing
Open Source and self-hosted files sharing application based on unique and temporary links.
Fasten Health
Fasten is an open-source, self-hosted, personal/family electronic medical record aggregator, designed to integrate with 100,000’s of insurances/hospitals/clinics in the United States.
Fenrus
A self hosted personal home page that allows for multiple users, guest access and multiple dashboards for each user. It also has “Smart Apps” which display live data for those apps.
FHEM
FHEM is used to automate common tasks in the household like switching lamps and heating. It can also be used to log events like temperature or power consumption. You can control it via web or smartphone frontends, telnet or TCP/IP directly.
Feedpushr
Powerful RSS aggregator, able to transform and send articles to many outputs. Single binary, extensible with plugins.
EveryDocs
A simple Document Management System for private use with basic functionality to organize your documents digitally.
ERPNext
Free open source ERP system.
Erxes
Marketing, sales, and customer service platform designed to help businesses attract more engaged customers.
Exim
Message transfer agent (MTA) developed at the University of Cambridge.
EPrints
Digital document management system with a flexible metadata and workflow model primarily aimed at academic institutions.
emailwiz
Luke Smith’s bash script to completely automate the setup of a Postfix/Dovecot/SpamAssassin/OpenDKIM server on debian.
EspoCRM
CRM with a frontend designed as a single page application, and a REST API.
EmailRelay
A small and easy to configure SMTP and POP3 server for Windows and Linux.
EasyWI
Easy-Wi is a Web-interface that allows you to manage server daemons like gameservers. In addition it provides you with a CMS which includes a fully automated game- and voiceserver lending service.
Easy!Appointments
A highly customizable web application that allows your customers to book appointments with you via the web.
Domoticz
Home Automation System that lets you monitor and configure various devices like: Lights, Switches, various sensors/meters like Temperature, Rain, Wind, UV, Electra, Gas, Water and much more.
Docspell
Auto-tagging document organizer and archive.
Dolibarr
Dolibarr ERP CRM is a modern software package to manage your company or foundation activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, …).
DomainMOD
Application to manage your domains and other internet assets in a central location. DomainMOD includes a Data Warehouse framework that allows you to import your WHM/cPanel web server data so that you can view, export, and report on your data.
Directus
An Instant App & API for your SQL Database. Directus wraps your new or existing SQL database with a realtime GraphQL+REST API for developers, and an intuitive admin app for non-technical users.
django-wiki
Wiki system with complex functionality for simple integration and a superb interface. Store your knowledge with style: Use django models.
DebOps
Your Debian-based data center in a box. A set of general-purpose Ansible roles that can be used to manage Debian or Ubuntu hosts.
Deluge
Lightweight, cross-platform BitTorrent client.
Crafty Controller
Crafty Controller is a free and open-source Minecraft launcher and manager that allows users to start and administer Minecraft servers from a user-friendly interface.
Cozy Cloud
Personal cloud where you can manage and sync your contact, files and calendars, and manage your budget with an app store full of community contributions.
Damselfly
Fast server-based photo management system for large collections of images. Includes face detection, face & object recognition, powerful search, and EXIF Keyword tagging. Runs on Linux, MacOS and Windows.