Z Zim Graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images. Self-hostedOpen sourceWikis 2 206GPL-2.0Pythonmis à jour le oct. 2026
P phpBB Flat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. Self-hostedOpen sourceCommunication - Social Networks and Forums 2 106GPL-2.0PHPmis à jour le oct. 2026
ProjectSend Upload files and assign them to specific clients you create. Give access to those files to your clients. Self-hostedOpen sourceFile Transfer - Single-click & Drag-n-drop Upload 2 035GPL-2.0PHPmis à jour le oct. 2026
R RetroShare Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. Self-hostedOpen sourceCommunication - Custom Communication Systems 2 021GPL-2.0C++mis à jour le oct. 2026
MantisBT Bug tracker, fits best for software development. Self-hostedOpen sourceTicketing 1 810GPL-2.0PHPmis à jour le oct. 2026
Lyrion Music Server Server software which controls a wide range of Squeezebox/Slim Devices audio players and compatible hardware (formerly Logitech Media Server). Self-hostedOpen sourceMedia Streaming - Audio Streaming 1 800GPL-2.0Perlmis à jour le oct. 2026
CUPS The Common Unix Print System uses Internet Printing Protocol (IPP) to support printing to local and network printers. Self-hostedOpen sourceMiscellaneous 1 787GPL-2.0Cmis à jour le oct. 2026
M MongooseIM Mobile messaging platform with a focus on performance and scalability. Self-hostedOpen sourceCommunication - XMPP - Servers 1 758GPL-2.0Erlangmis à jour le oct. 2026
E Elgg Powerful open source social networking engine. Self-hostedOpen sourceCommunication - Social Networks and Forums 1 676GPL-2.0PHPmis à jour le oct. 2026
O openSIPS SIP proxy/server for voice, video, IM, presence and any other SIP extensions. Self-hostedOpen sourceCommunication - SIP 1 544GPL-2.0Cmis à jour le oct. 2026
R Revive Adserver Ad serving system. Formerly known as OpenX Adserver and phpAdsNew. Self-hostedOpen sourceMiscellaneous 1 515GPL-2.0PHPmis à jour le oct. 2026
M MODX Advanced content management and publishing platform. The current version is called 'Revolution'. Self-hostedOpen sourceContent Management Systems (CMS) 1 414GPL-2.0PHPmis à jour le oct. 2026
Gerbera UPnP Media Server, which allows you to stream your digital media throughout your home network and listen to/watch it on a variety of UPnP compatible devices. Self-hostedOpen sourceMedia Streaming - Multimedia Streaming 1 399GPL-2.0C++mis à jour le oct. 2026
F farmOS Web-based farm record keeping application. Self-hostedOpen sourceResource Planning 1 381GPL-2.0PHPmis à jour le oct. 2026
H HTMLy Databaseless PHP blogging platform. A flat-file CMS that allows you to create a fast, secure, and powerful website or blog in seconds. Self-hostedOpen sourceBlogging PlatformsContent Management Systems (CMS) 1 367GPL-2.0PHPmis à jour le janv. 2026
InspIRCd Modular IRC server written in C++ for Linux, BSD, Windows, and macOS. Self-hostedOpen sourceCommunication - IRC 1 357GPL-2.0C++mis à jour le oct. 2026
T Tracks Web-based application to help you implement David Allen’s [Getting Things Done™](https://en.wikipedia.org/wiki/Getting_Things_Done) methodology. Self-hostedOpen sourceTask Management & To-do Lists 1 239GPL-2.0Rubymis à jour le août 2026
H Hyphanet Anonymously share files, browse and publish _freesites_ (web sites accessible only through Hyphanet) and chat on forums. Self-hostedOpen sourceCommunication - Custom Communication Systems 1 228GPL-2.0Javamis à jour le sept. 2026
O OwnTracks Recorder Store and access data published by [OwnTracks](https://owntracks.org/) location tracking apps. Self-hostedOpen sourceMaps and Global Positioning System (GPS) 1 220GPL-2.0Cmis à jour le oct. 2026
TYPO3 Powerful and advanced CMS with a large community. Self-hostedOpen sourceContent Management Systems (CMS) 1 218GPL-2.0PHPmis à jour le oct. 2026
R Request Tracker Enterprise-grade issue tracking system. Self-hostedOpen sourceTicketing 1 163GPL-2.0Perlmis à jour le oct. 2026
B Backdrop CMS Comprehensive CMS for small to medium sized businesses and non-profits. Self-hostedOpen sourceContent Management Systems (CMS) 1 051GPL-2.0PHPmis à jour le oct. 2026
D DOMJudge System for running a programming contest, like the ICPC regional and world championship programming contests. Self-hostedOpen sourceMiscellaneous 922GPL-2.0PHPmis à jour le oct. 2026
T Textpattern Flexible, elegant and easy-to-use CMS. Self-hostedOpen sourceContent Management Systems (CMS) 883GPL-2.0PHPmis à jour le oct. 2026
Z Zero-K Open Source on Springrts engine. Zero-K is a traditional real time strategy game with a focus on player creativity through terrain manipulation, physics, and a large roster of unique units - all while being balanced to support competitive play. Self-hostedOpen sourceGames 877GPL-2.0Luamis à jour le oct. 2026
Q Quassel IRC Distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a central core. Self-hostedOpen sourceCommunication - IRC 792GPL-2.0C++mis à jour le juin 2026
D DavMail POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client with an Exchange server, even from the internet or behind a firewall through Outlook Web Access. Self-hostedOpen sourceCommunication - Email - Mail Delivery AgentsCalendar & Contacts 774GPL-2.0Javamis à jour le oct. 2026
Mayan EDMS Electronic document management system for your documents with preview generation, OCR, and automatic categorization among other features. Self-hostedOpen sourceDocument Management 682GPL-2.0Dockermis à jour le sept. 2026
N ngircd Portable and lightweight Internet Relay Chat server for small or private networks. Self-hostedOpen sourceCommunication - IRC 582GPL-2.0Cmis à jour le oct. 2026
L LedgerSMB Integrated accounting and ERP system for small and midsize businesses, with double entry accounting, budgeting, invoicing, quotations, projects, orders and inventory management, shipping and more. Self-hostedOpen sourceResource Planning 571GPL-2.0Perlmis à jour le oct. 2026