排序
hanshuang-codex
针对GPT 5.6,V4flash的破甲实验项目. Contribute to aimeoa/hanshuang-codex development by creating an account on GitHub.
mobilecode
short-video-generator-AI
Free open-source project designed for turning youtube-viedos into viral short videos. Highlight detection, subtitles, translation, voiceover, all in one for your content. - pierrenade/short-video-generator-AI
remote-installer
fable51-worlds
worlds via code, from fable 5.1. Contribute to PhiloLabs/fable51-worlds development by creating an account on GitHub.
codex-cli-portable-setup-kit
Verified reverse engineering: AI RE grounded on deterministic tools - results checked against the binary, not hallucinated. - 2akouwu/reverify
opengrok
Run any model in Grok Bot — one-command setup, model picker UI, evidence-based provider wire maps, and an update-proof doctor. Not farming you, arming you. - OnlyTerp/opengrok
my-free-code
Open-source multi-provider AI gateway for Claude Code and other coding agents, with model routing, streaming, tools, reasoning, fallbacks, and local model support - hkqr/my-free-code
freeCodeCamp
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free. - freeCodeCamp/freeCodeCamp
ohmyzsh
A delightful community-driven framework for managing zsh configuration.
LiveCodes
LiveCodes(开发工具与框架)AI工具,官网:https://livecodes.io/docs/features/self-hosting
LazyLibrarian
LazyLibrarian / LazyLibrarian · GitLab
Zim
Graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images. (Source Code) GPL-2.0 Python/deb
WiKiss
Wiki, simple to use and install. (Source Code) GPL-2.0 PHP
WackoWiki
WackoWiki is a light and easy to install multilingual Wiki-engine. (Source Code) BSD-3-Clause PHP
W
Lightweight, mutli-user, flat-file-database Wiki engine. Create pages quickly and edit them in your Web browser using Mardown/HTML/CSS/JS. The main difference with other wiki is that you are encouraged to customize each page style individually. (Source Code) AGPL-3.0 PHP
Tiki
Wiki CMS Groupware with the most built-in features. (Demo, Source Code) LGPL-2.1 PHP
TiddlyWiki
Reusable non-linear personal web notebook. (Source Code) BSD-3-Clause Nodejs
Raneto
Knowledgebase platform that uses static Markdown files. (Source Code) MIT Nodejs
Mycorrhiza Wiki
Filesystem and git-based wiki engine written in Go using Mycomarkup as its primary markup language. (Source Code) AGPL-3.0 Go
Feather Wiki
A lightning fast and infinitely extensible tool for creating personal non-linear notebooks, databases, and wikis that is entirely self-contained, runs in your browser, and is only 58 kilobytes in size. (Demo, Source Code, Clients) AGPL-3.0 Javascript
Dokuwiki
Easy to use, lightweight, standards-compliant wiki engine with a simple syntax allowing reading the data outside the wiki. All data is stored in plain text files, therefore no database is required. (Source Code) GPL-2.0 PHP
django-wiki
Wiki system with complex functionality for simple integration and a superb interface. Store your knowledge with style: Use django models. (Demo) GPL-3.0 Python
Zoneminder
Closed-circuit television (CCTV) software application which supports IP, USB and Analog cameras. (Source Code) GPL-2.0 PHP/deb
Secluso
Private DIY home security camera system for Raspberry Pi, with end-to-end encrypted remote access and mobile apps for live video, alerts, and recording playback. (Source Code) GPL-3.0 Rust
Bluecherry
Closed-circuit television (CCTV) software application which supports IP and Analog cameras. (Source Code) GPL-2.0 PHP
YOURLS
YOURLS is a set of PHP scripts that will allow you to run Your Own URL Shortener. Features include password protection, URL customization, bookmarklets, statistics, API, plugins, jsonp. (Source Code) MIT PHP
rs-short
Lightweight link shortener written in Rust, with features such as caching, spambot protection and phishing detection. (Demo) MPL-2.0 Rust
clink
A super-minimal link shortening service written in pure C, focusing on small executable size, portability, and ease of configuration. (Demo) AGPL-3.0 C
Kimai
Track work time and print out a summary of your activities on demand. (Demo, Source Code) AGPL-3.0 PHP
Zammad
Easy to use but powerful open-source support and ticketing system. (Source Code) AGPL-3.0 Ruby/deb
MantisBT
Bug tracker, fits best for software development. (Demo, Source Code) GPL-2.0 PHP
ITFlow
Client IT documentation, ticketing, invoicing and accounting for MSPs (Managed Service Providers). (Demo, Source Code) GPL-3.0 PHP
Bugzilla
General-purpose bugtracker and testing tool originally developed and used by the Mozilla project. (Source Code) MPL-2.0 Perl
Wekan
Open-source Trello-like kanban. (Source Code) MIT Nodejs
Vikunja
The to-do app to organize your life. (Demo, Source Code) AGPL-3.0/GPL-3.0 Go
Kanboard
Simple visual task board. (Source Code) MIT PHP
Bencher
Suite of continuous benchmarking tools designed to catch performance regressions in CI. (Source Code) MIT/Apache-2.0 Rust
ZenTao
An agile(scrum) project management system/tool. (Source Code) AGPL-3.0 PHP
UVDesk
UVDesk community is a service oriented, event driven extensible opensource helpdesk system that can be used by your organization to provide efficient support to your clients effortlessly whichever way you imagine. (Demo, Source Code) MIT PHP
Tuleap
Tuleap is a libre suite to plan, track, code and collaborate on software projects. (Source Code) GPL-2.0 PHP
Traq
Project management and issue tracking system written in PHP. (Source Code) GPL-3.0 PHP/Nodejs
Sourcehut
A full web git interface with no javascript. (Demo, Source Code) GPL-2.0 Go
Smederee
A frugal platform which is dedicated to help people build great software together leveraging the power of the Darcs version control system. (Source Code) AGPL-3.0 Scala
RhodeCode
Unify and simplify repository management for Git, Subversion, and Mercurial. (Source Code) AGPL-3.0 Python
Redmine
Flexible project management web application. (Source Code) GPL-2.0 Ruby
ProjeQtOr
Complete, mature, multi-user project management system with extensive functionality for all phases of a project. (Demo, Source Code) AGPL-3.0 PHP
Phorge
Community-driven platform for collaborating, managing, organizing and reviewing software development projects. (Source Code) Apache-2.0 PHP
Ideon
Project workspace built around an infinite canvas; embed GitHub, GitLab, Gitea, and Forgejo repositories alongside notes, links, and tasks, with real-time collaboration. (Source Code) AGPL-3.0 Docker
GitLab
Self Hosted Git repository management, code reviews, issue tracking, activity feeds and wikis. (Demo, Source Code) MIT Ruby/deb/Docker/K8S
gitbucket
Git platform powered with easy installation, high extensibility & GitHub API compatibility (alternative to GitHub). (Source Code) Apache-2.0 Scala/Java
Cgit
Fast lightweight web interface for git repositories. (Source Code) GPL-2.0 C
Manifest
Complete backend that fits into 1 YAML file. (Demo, Source Code) MIT Nodejs
Eclipse Che
Open source workspace server and cloud IDE. (Source Code) EPL-1.0 Docker/Java
Coder
Remote development machines on your own infrastructure. (Source Code) AGPL-3.0 Go/Docker/K8S/deb
code-server
VS Code in the browser, hosted on a remote server. MIT Nodejs/Docker
GO Feature Flag
Simple, complete, and lightweight feature flag solution (alternative to LaunchDarkly). (Source Code) MIT Go
Lura
High-performance API Gateway. (Source Code) Apache-2.0 Go
Graphweaver
Turn multiple data sources into a single GraphQL API. (Source Code) MIT Nodejs
WikiSuite
The most comprehensive and integrated Free / Libre / Open Source enterprise software suite. (Source Code) GPL-3.0/LGPL-2.1/Apache-2.0/MPL-2.0/MPL-1.1/MIT/AGPL-3.0 Shell/Perl/deb
Syncloud
Your own online file storage, social network or email server. (Source Code) GPL-3.0 Go/Shell
StartOS
Browser-based, graphical Operating System (OS) that makes running a personal server as easy as running a personal computer. (Source Code) MIT Rust
LibreServer
Home server configuration based on Debian. (Source Code) AGPL-3.0 Shell
HomeServerHQ
All-in-one home server infrastructure and installer. Have a fully configured email server, VPN, and public website(s) set up in less than an hour, even behind CGNAT. (Source Code) GPL-3.0 Shell
FreedomBox
Community project to develop, design and promote personal servers running free software for private, personal, communications. (Source Code) AGPL-3.0 Python/deb
Dropserver
An application platform for your personal web services. (Source Code) Apache-2.0 Go/Deno
Tryton
Free open source business solution. (Demo, Source Code) GPL-3.0 Python
OFBiz
Enterprise Resource Planning system with a suite of business applications flexible enough to be used across any industry. (Source Code) Apache-2.0 Java
Dolibarr
Modern CRM software package to manage your company or foundation activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...). (Demo, Source Code) GPL-3.0 PHP/deb
MeshCentral
Run your own web server to remotely manage and control computers on a local network or anywhere on the internet. (Source Code) Apache-2.0 Nodejs
Guacamole
Clientless remote desktop gateway supporting standard protocols like VNC and RDP. (Source Code) Apache-2.0 Java/C
Mealie
Material design inspired recipe manager with category and tag management, shopping-lists, meal-planner, and site customizations. Mealie is focused on simple user interactions to keep the whole family using the app. (Demo, Source Code) MIT Python
CookCLI
Command-line tool for automating meal planning and shopping with Cooklang recipes, scriptable for UNIX workflows, includes web server. (Source Code) MIT Rust
Tinyproxy
Light-weight HTTP/HTTPS proxy daemon. (Source Code) GPL-2.0 C/deb
Squid
Caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. (Source Code) GPL-2.0 C/deb
iodine
IPv4 over DNS tunnel solution, enabling you to start up a socks5 proxy listener. (Source Code) ISC C/deb
g3proxy
Forward proxy server supporting proxy chaining, protocol inspection, MITM Interception, ICAP adaptation and transparent proxy. (Source Code) Apache-2.0 Rust/deb
Meetable
Minimal events aggregator. (Source Code) MIT PHP
LimeSurvey
Feature-rich web-based polling software. Supports extensive survey logic. (Demo, Source Code) GPL-2.0 PHP
hitobito
Manage complex group hierarchies with members, events and a lot more. (Demo, Source Code) AGPL-3.0 Ruby
Gancio
Local community event and agenda sharing. (Demo, Source Code) AGPL-3.0 Nodejs
Framadate
Online service for planning an appointment or make a decision quickly and easily: Make a poll, Define dates or subjects to choose, 发送 the poll link to your friends or colleagues, Discuss and make a decision. (Demo, Source Code) CECILL-B PHP
Fider
Open platform to collect and prioritize feedback (alternative to UserVoice). (Demo, Source Code) MIT Docker
ClearFlask
Community-feedback tool for managing incoming feedback and prioritizing a public roadmap (alternative to Canny, UserVoice, Upvoty). (Demo, Source Code) AGPL-3.0 Docker
Piwigo
Photo gallery software for the web, built by an active community of users and developers. (Source Code) GPL-2.0 PHP
Nextcloud Memories
Fast, modern and advanced photo management suite. Runs as a Nextcloud app. (Demo, Source Code) AGPL-3.0 PHP
LittleLink
Simplistic approach for links in bio with 100+ branded buttons (alternative to Linktree). (Demo, Source Code) MIT Javascript
Homepage by tomershvueli
Simple, standalone, self-hosted PHP page that is your window to your server and the web. MIT PHP
Heimdall
Elegant solution to organise all your web applications. (Source Code) MIT PHP
rustypaste
Minimal file upload/pastebin service. MIT Rust
PrivateBin
Minimalist pastebin/discussion board where the server has zero knowledge of hosted data. (Demo, Source Code) Zlib PHP
BinPastes
Minimal pastebin supporting client-side encryption, fulltext search, one-time messages. Intended for one to few users looking for a simple pastebin deployment. Apache-2.0 Java
Teampass
Password manager dedicated for managing passwords in a collaborative way. One symmetric key is used to encrypt all shared/team passwords and stored server side in a file and the database. works on any server Apache, MySQL and PHP. (Source Code) GPL-3.0 PHP
Psono
Password manager for companies. (Demo, Source Code) Apache-2.0 Python
Digislides
Create multimedia presentations in a quick and easy way. (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs/PHP
Collabora Online Development Edition
Collabora Online Development Edition (CODE) is a powerful LibreOffice-based online office that supports all major document, spreadsheet and presentation file formats, which you can integrate in your own infrastructure. (Source Code) MPL-2.0 C++
Writing
Lightweight distraction-free text editor, in the browser (Markdown and LaTeX supported). No lag when writing. (Source Code) MIT Javascript
Turtl
Totally private personal database and note taking app. (Source Code) GPL-3.0 CommonLisp
Plainpad
Modern note taking application for the cloud, utilizing the best features of progressive web apps technology. (Demo, Source Code) GPL-3.0 PHP
Overleaf
Web-based collaborative LaTeX editor. (Source Code) AGPL-3.0 Ruby
YAFFA
Personal finance web application, that can be used to keep track of your money, expenses, budgets, and investments. It also helps with long-term financial planning. (Demo, Source Code) MIT PHP
SolidInvoice
Open source invoicing and quote application. (Source Code) MIT PHP
SHKeeper
Cryptocurrency payment processor with the unique combination of gateway and merchant allowing you to accept payments in multiple cryptocurrencies without fees and intermediaries. (Demo, Source Code) GPL-3.0 Python
REI3
Manage tasks, time, assets and much more within your business. (Demo, Source Code) MIT Go
Mybucks.online
Secure, browser-based, password-only self-custodial cryptocurrency wallet. (Demo, Source Code) MIT Nodejs
InvoicePlane
Manage quotes, invoices, payments and customers for your small business. (Source Code) MIT PHP
GRR
Assets management and booking for small/medium companies. (Source Code) GPL-2.0 PHP
Galette
Membership management web application aimed towards non profit organizations. (Source Code) GPL-3.0 PHP
Fava
Web frontend of Beancount, a text based double-entry accounting system. (Demo, Source Code) MIT Python
BTCPay Server
Bitcoin and other cryptocurrencies payment processor. (Demo, Source Code) MIT C#
WeeWX
Open source software for your weather station. (Demo, Source Code) GPL-3.0 Python/deb
string.is
An open-source, privacy-friendly online string toolkit for developers. (Source Code) AGPL-3.0 Nodejs
SANE Network Scanning
Allow remote clients to access image acquisition devices (scanners) available on the local host. (Source Code) GPL-2.0 C
Revive Adserver
Ad serving system. Formerly known as OpenX Adserver and phpAdsNew. (Source Code) GPL-2.0 PHP
revealjs
Framework for easily creating beautiful presentations using HTML. (Demo, Source Code) MIT Javascript
Reactive Resume
One-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever. (Demo, Source Code) MIT Docker/Nodejs
POMjs
Random password generator. (Source Code) GPL-2.0 Javascript
OpenZiti
Fully-featured, zero trust, full mesh overlay network. Includes a 2FA support out of the box, clients for all major desktop/mobile OS'es. (Source Code) Apache-2.0 Go
mosparo
The modern spam protection tool. It replaces other captcha methods with a simple and easy to use spam protection solution. (Source Code) MIT PHP
ESMira
Run longitudinal studies (ESM, AA, EMA) with data collection and communication with participants being completely anonymous. (Demo, Source Code) AGPL-3.0 PHP
DOMJudge
System for running a programming contest, like the ICPC regional and world championship programming contests. (Demo, Source Code) GPL-2.0/BSD-3-Clause/MIT PHP
Digiwords
A simple online application for creating word clouds (documentation in French). (Source Code) AGPL-3.0 Nodejs/PHP
Digitranscode
Convert audio files and videos directly in the browser (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs
Digisteps
A simple application for creating online educational paths (documentation in French). (Source Code) AGPL-3.0 Nodejs/PHP
Digiquiz
An online application to publish content created with H5P (documentation in French). (Source Code) AGPL-3.0 Nodejs
Digimerge
Assemble audio and video files directly in your browser (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs
Digiflashcards
An online application to create flashcards (documentation in French). (Source Code) AGPL-3.0 Nodejs/PHP
Digiface
Create avatars using the Avataaars library (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs
Digicut
Cut audio and video files using FFMPEG.wasm (documentation in French). (Source Code) AGPL-3.0 Nodejs
Digicard
Create simple graphic compositions (documentation in French). (Demo) AGPL-3.0 Nodejs
Digiboard
Create collaborative whiteboards (documentation in French). (Source Code) AGPL-3.0 Nodejs
CUPS
The Common Unix Print System uses Internet Printing Protocol (IPP) to support printing to local and network printers. (Source Code) GPL-2.0 C
ClipCascade
Syncs your clipboard across multiple devices instantly, without any button press. Available on Windows, macOS, Linux, and Android, it provides seamless and secure clipboard sharing with end-to-end data encryption. GPL-3.0 Java/Docker
Anchr
Toolbox for tiny tasks on the internet, including bookmark collections, URL shortening and (encrypted) image uploads. (Source Code) GPL-3.0 Nodejs
VideoLAN Client (VLC)
Cross-platform multimedia player client and server supporting most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. (Source Code) GPL-2.0 C/deb
SyncTube
Lightweight and very simple to setup CyTube alternative to watch videos with friends and chat. MIT Nodejs/Haxe
PeerTube
Decentralized video streaming platform using P2P (BitTorrent) directly in the web browser. (Source Code) AGPL-3.0 Nodejs
Owncast
Decentralized single-user live video streaming and chat server for running your own live streams similar in style to the large mainstream options. (Source Code) MIT Go
Rygel
UPnP AV MediaServer that allows you to easily share audio, video, and pictures. Media player software may use Rygel to become a MediaRenderer that may be controlled remotely by a UPnP or DLNA Controller. (Source Code) LGPL-2.1 C
NymphCast
Turn your choice of Linux-capable hardware into an audio and video source for a television or powered speakers (alternative to Chromecast). (Source Code) BSD-3-Clause C++
MistServer
Public domain streaming media server that works with any device and any format. (Source Code) Unlicense C++
Kodi
Multimedia/Entertainment center, formerly known as XBMC. Runs on Android, BSD, Linux, macOS, iOS and Windows. (Source Code) GPL-2.0 C++/deb
Icecast 2
Streaming audio/video server which can be used to create an Internet radio station or a privately running jukebox and many things in between. (Source Code, Clients) GPL-2.0 C
cmyflix
Minimalist Plex/Jellyfin alternative to stream video. AGPL-3.0 C/deb
ClipBucket
Start your own video sharing website (YouTube/Netflix Clone) in a matter of minutes. (Demo, Source Code) AAL Docker/PHP
musikcube
Streaming audio server with Linux/macOS/Windows/Android clients. (Source Code) BSD-3-Clause C++/deb
mpd
Daemon to remotely play music, stream music, handle and organize playlists. Many clients available. (Source Code, Clients) GPL-2.0 C++
koel
Personal music streaming server that works. (Demo, Source Code) MIT PHP
BotWave
FM broadcasting system with server-client architecture for managing multiple Raspberry Pi transmitters remotely. (Source Code) GPL-3.0 Python
Beets
Music library manager and MusicBrainz tagger (command-line and Web interface). (Source Code) MIT Python/deb
Ampache
Web based audio/video streaming application. (Demo, Source Code) AGPL-3.0 PHP
Ombi
Content request system for Plex/Emby, connects to SickRage, CouchPotato, Sonarr, with a growing feature set. (Demo, Source Code) GPL-2.0 C#/deb
nefarious
Automate downloading Movies and TV Shows. (Source Code) GPL-3.0 Python
Traccar
Java application to track GPS positions. Supports loads of tracking devices and protocols, has an Android and iOS App. Has a web interface to view your trips. (Demo, Source Code) Apache-2.0 Java
OpenTripPlanner
Multimodal trip planning software based on OpenStreetMap data and consuming published GTFS-formatted data to suggest routes using local public transit systems. (Source Code) LGPL-3.0 Java/Javascript
OpenStreetMap
Collaborative project to create a free editable map of the world. (Source Code, Clients) GPL-2.0 Ruby
Open Source Routing Machine (OSRM)
High performance routing engine designed to run on OpenStreetMap data and offering an HTTP API, C++ library interface, and Nodejs wrapper. (Demo, Source Code) BSD-2-Clause C++
Nominatim
Server application for geocoding (address -> coordinates) and reverse geocoding (coordinates -> address) on OpenStreetMap data. (Source Code) GPL-2.0 C
GraphHopper
Fast routing library and server using OpenStreetMap. (Source Code) Apache-2.0 Java
LinuxCNC
Linux based CNC machine controller. It can drive milling machines, lathes, 3D printers, laser cutters, plasma cutters, robot arms, hexapods, and more. (Source Code) GPL-2.0/LGPL-3.0 C/deb
CNCjs
Web interface for CNC milling controllers running Grbl, Smoothieware, or TinyG. (Source Code) MIT Nodejs
RosarioSIS
Student Information System for school management. Features students demographics, grades, scheduling, attendance, student billing, discipline & food service modules. (Demo, Source Code) GPL-2.0 PHP
RELATE
Courseware package that includes features such as: flexible rules, statistics, multi-course support, class calendar. (Source Code) MIT Python
QST
Online assessment software. From a quick quiz on your phone to large scale, high stakes, proctored desktop testing, easy, secure and economical. (Demo, Source Code) GPL-2.0 Perl
OpenOLAT
Learning management system for teaching, education, assessment and communication. (Demo, Source Code) Apache-2.0 Java
Open eClass
Open eClass is an advanced e-learning solution that can enhance the teaching and learning process. (Demo, Source Code) GPL-2.0 PHP
Moodle
Learning and courses platform with one of the largest open source communities worldwide. (Demo, Source Code) GPL-3.0 PHP
ILIAS
Learning management system that can cope with anything you throw at it. (Demo, Source Code) GPL-3.0 PHP
Gibbon
Flexible school management platform designed to make life better for teachers, students, parents and leaders. (Source Code) GPL-3.0 PHP
edX
The Open edX platform is open-source code that powers edX.org. (Source Code) AGPL-3.0 Python
Digitools
A set of simple tools to accompany the animation of courses in person or remotely. (documentation in French). (Demo, Source Code) AGPL-3.0 PHP
Digiscreen
Interactive whiteboard/wallpaper for the classroom, in person or remotely (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs/PHP
Chamilo LMS
Create a virtual campus for the provision of online or semi-online training. (Source Code) GPL-3.0 PHP
Canvas LMS
Learning management system (LMS) that is revolutionizing the way we educate. (Demo, Source Code) AGPL-3.0 Ruby
Shelf
Asset and equipment tracking software used by teams who value clarity. Shelf is an asset database and QR asset label generator that lets you create, manage and overview your assets across locations. Unlimited assets, free forever. (Source Code) AGPL-3.0 Nodejs
Inventree
Inventory management system which provides intuitive parts management and stock control. (Demo, Source Code) MIT Python
Inventaire
Collaborative resources mapper project, while yet only focused on exploring books mapping with wikidata and ISBNs. (Source Code) AGPL-3.0 Nodejs
WebThings Gateway
WebThings is an open source implementation of the Web of Things, including the WebThings Gateway and the WebThings Framework. (Source Code) MPL-2.0 Nodejs
SIP Irrigation Control
Open source software for sprinkler/irrigation control. (Source Code) GPL-3.0 Python
polluSensWeb
Web-based serial interface and charting tool for visualizing and logging data from UART pollution sensors (PM2.5, VOC, etc). Features live data acquisition, dynamic charts, CSV export, and webhook integration. (Demo, Source Code, Clients) MIT Javascript
OpenRemote
IoT Asset management, Flow Rules and WHEN-THEN rules, Data visualization, Edge Gateway. (Demo, Source Code) AGPL-3.0 Java
FHEM
Automate common tasks in the household like switching lamps and heating. It can also be used to log events like temperature or power consumption. 你 can control it via web or smartphone frontends, telnet or TCP/IP directly. (Source Code) GPL-3.0 Perl
MintHCM
Tool for Human Capital Management based on two popular, well-known business applications SugarCRM Community Edition and SuiteCRM. (Source Code) AGPL-3.0 PHP
Zimbra Collaboration
Email, calendar, collaboration server with Web interface and lots of integrations. (Source Code) GPL-2.0/CPAL-1.0 Java
SOGo
SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface. (Demo, Source Code) LGPL-2.1 Objective-C
Openmeetings
Video conferencing, instant messaging, whiteboard, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming. (Source Code) Apache-2.0 Java
Group Office
Enterprise CRM and groupware tool. 分享 projects, calendars, files and e-mail online with co-workers and clients. (Source Code) AGPL-3.0 PHP
egroupware
Software suite including calendars, address books, notepad, project management tools, client relationship management tools (CRM), knowledge management tools, a wiki and a CMS. (Source Code) GPL-2.0 PHP
Digiwall
Create multimedia collaborative walls for in-person or remote work (documentation in French). (Source Code) AGPL-3.0 Nodejs
Digistorm
Create collaborative surveys, quizzes, brainstorms, and word clouds (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs
Cozy Cloud
Personal cloud where you can manage and sync your files, notes, contacts, passwords, and documents. (Source Code, Clients) GPL-3.0 Nodejs
webtrees
Webtrees is the web's leading online collaborative genealogy application. (Demo, Source Code) GPL-3.0 PHP
GeneWeb
Genealogy software that can be used offline or as a Web service. (Source Code) GPL-2.0 OCaml
Genealogy
Record family members and their relationships and build a family tree. (Demo, Source Code) MIT PHP
Genea.app
Genealogy tool designed with privacy in mind that anyone can use to author or edit their family tree. Data is stored in the GEDCOM format and all processing is done in the browser. (Source Code) MIT Javascript
SourceBans++
Admin, ban, and communication management system for games running on the Source engine. (Source Code) CC-BY-SA-4.0 PHP
PufferPanel
Game server management panel designed for both small networks and game server providers. (Source Code) Apache-2.0 Go
Pterodactyl
Management panel for game servers, with an intuitive UI for end users. (Source Code) MIT PHP
Minus Games
Sync games and save files across multiple devices. (Source Code) MIT Rust
LinuxGSM
CLI tool for deployment and management of dedicated game servers on Linux: more than 120 games are supported. (Source Code) MIT Shell
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. (Source Code) GPL-3.0 PHP/Shell
auto-mcs
Cross-platform Minecraft server manager. (Source Code) AGPL-3.0 Python
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. (Source Code) GPL-2.0 Lua
Veloren
Multiplayer RPG. Open-source game inspired by Cube World, Legend of Zelda, Dwarf Fortress and Minecraft. (Source Code) GPL-3.0 Rust
Suroi
An open-source 2D battle royale game inspired by surviv.io. (Demo, Source Code) GPL-3.0 Nodejs
Red Eclipse 2
Arena first-person shooter similar to Unreal Tournament. (Source Code) Zlib/MIT/CC-BY-SA-4.0 C/C++/deb
piqueserver
Server for openspades, the first-person shooter in a destructible voxel world. (Clients) GPL-3.0 Python/C++
Mindustry
Factorio-like tower defense game. Build production chains to gather more resources, and build complex facilities. (Source Code) GPL-3.0 Java
Luanti
Voxel game engine (formerly Minetest). Play one of our many games, mod a game to your liking, make your own game, or play on a multiplayer server. (Source Code) LGPL-2.1/MIT/Zlib C++/Lua/deb
Lila
Ad-less chess server powering lichess.org, with official iOS and Android client apps. (Source Code) AGPL-3.0 Scala
Digibuzzer
Create a virtual game room around a connected buzzer (documentation in French). (Demo, Source Code) AGPL-3.0 Nodejs
DDraceNetwork
Cooperative platformer version of DDRace, a Teeworlds modification featuring unique cooperative gameplay. (Source Code) Zlib C++
0 A.D.
Cross-platform real-time strategy game of ancient warfare. (Source Code) MIT/GPL-2.0/Zlib C++/C/deb
Tiny File Manager
Web based File Manager in PHP, simple, fast and small file manager with a single file. (Demo, Source Code) GPL-3.0 PHP
TagSpaces
TagSpaces is an offline, cross-platform file manager and organiser that also can function as a note taking app. The WebDAV version of the application can be installed on top of a WebDAV servers such as Nextcloud or ownCloud. (Demo, Source Code) AGPL-3.0 Nodejs
slcl
Simple and lightweight web cloud storage. (Source Code) AGPL-3.0 C
ResourceSpace
Simple, fast, and free way to organise your digital assets. (Demo, Source Code) BSD-4-Clause PHP
miniserve
CLI tool to serve files and dirs over HTTP. MIT Rust
copyparty
Portable file server with accelerated resumable uploads, deduplication, WebDAV, FTP, zeroconf, media indexer, video thumbnails, audio transcoding, and write-only folders, in a single file with no mandatory dependencies. (Demo) MIT Python
Apaxy
Theme built to enhance the experience of browsing web directories, using the mod_autoindex Apache module and some CSS to override the default style of a directory listing. (Source Code) GPL-3.0 Javascript
transfer.sh
Easy file sharing from the command line. MIT Go
ProjectSend
Upload files and assign them to specific clients you create. Give access to those files to your clients. (Source Code) GPL-2.0 PHP
goploader
Easy file sharing with server-side encryption, curl/httpie/wget compliant. (Source Code) MIT Go
elixire
Simple yet advanced screenshot uploading and link shortening service. (Clients) AGPL-3.0 Python
Digirecord
Record and share audio files (documentation in French). (Source Code) AGPL-3.0 Nodejs/PHP
Transmission
Fast, easy, free Bittorrent client. (Source Code) GPL-3.0 C++/deb
qBittorrent
Free cross-platform bittorrent client with a feature rich Web UI for remote access. (Source Code) GPL-2.0 C++
Deluge
Lightweight, cross-platform BitTorrent client. (Source Code) GPL-3.0 Python/deb
Unison
Unison is a file-synchronization tool for OSX, Unix, and Windows. (Source Code) GPL-3.0 deb/OCaml
Samba
Samba is the standard Windows interoperability suite of programs for Linux and Unix. It provides secure, stable and fast file and print services for all clients using the SMB/CIFS protocol. (Source Code) GPL-3.0 C
Pydio
Turn any web server into a powerful file management system and an alternative to mainstream cloud storage providers. (Demo, Source Code) AGPL-3.0 Go
Peergos
Secure and private space online where you can store, share and view your photos, videos, music and documents. Also includes a calendar, news feed, task lists, chat and email client. (Source Code) AGPL-3.0 Java
Nextcloud
Access and share your files, calendars, contacts, mail and more from any device, on your terms. (Demo, Source Code) AGPL-3.0 PHP/deb
Kinto
Minimalist JSON storage service with synchronisation and sharing abilities. (Source Code) Apache-2.0 Python
Git Annex
File synchronization between computers, servers, external drives. (Source Code) GPL-3.0 Haskell
Selfoss
New multipurpose rss reader, live stream, mashup, aggregation web application. (Source Code) GPL-3.0 PHP
reader
Feed reader web app and library (so you can use it to build your own), with only standard library and pure-Python dependencies. BSD-3-Clause Python
NewsBlur
Personal news reader that brings people together to talk about the world. A new sound of an old instrument. (Source Code) MIT Python
WooCommerce
WordPress based e-commerce solution. (Source Code) GPL-3.0 PHP
Vendure
A headless commerce framework. (Demo, Source Code) MIT Nodejs
Thelia
Thelia is an open source and flexible e-commerce solution. (Demo, Source Code) LGPL-3.0 PHP
Sylius
Symfony2 powered open source full-stack platform for eCommerce. (Demo, Source Code) MIT PHP
Spree Commerce
Spree is a complete, modular & API-driven open source e-commerce solution for Ruby on Rails. (Demo, Source Code) BSD-3-Clause Ruby
Shopware Community Edition
PHP based open source e-commerce software made in Germany. (Demo, Source Code) MIT PHP
s-cart
E-commerce website for individuals and businesses, built on top of Laravel Framework. (Demo, Source Code) MIT PHP
PrestaShop
Fully scalable e-commerce solution. (Demo, Source Code) OSL-3.0 PHP
OpenCart
Shopping cart solution. (Source Code) GPL-3.0 PHP
Microweber
Drag and Drop CMS and online shop. (Source Code) MIT PHP
MedusaJs
Headless commerce engine that enables developers to create amazing digital commerce experiences. (Demo, Source Code) MIT Nodejs
Drupal Commerce
Popular e-commerce module for Drupal CMS, with support for dozens of payment, shipping, and shopping related modules. (Source Code) GPL-2.0 PHP
CoreShop
E-commerce plugin for Pimcore. (Source Code) GPL-3.0 PHP
Bagisto
Leading Laravel open source e-commerce framework with multi-inventory sources, taxation, localization, dropshipping and more exciting features. (Demo, Source Code) MIT PHP
Aimeos
E-commerce framework for building custom online shops, market places and complex B2B applications scaling to billions of items with Laravel. (Demo, Source Code) LGPL-3.0/MIT PHP
Koha
Enterprise-class ILS with modules for acquisitions, circulation, cataloging, label printing, offline circulation for when Internet access is not available, and much more. (Demo, Source Code) GPL-3.0 Perl
Evergreen
Highly-scalable software for libraries that helps library patrons find library materials, and helps libraries manage, catalog, and circulate those materials. (Source Code) GPL-2.0 PLpgSQL
Samvera Hyrax
Front-end for the Samvera framework, which itself is a Ruby on Rails application for browsing and managing Fedora-based digital repositories. (Source Code) Apache-2.0 Ruby
Islandora
Drupal module for browsing and managing Fedora-based digital repositories. (Demo, Source Code) GPL-3.0 PHP
InvenioRDM
Highly scalable turn-key research data management platform with a beautiful user experience. (Demo, Source Code, Clients) MIT Python
Fedora Commons Repository
Robust and modular repository system for the management and dissemination of digital content especially suited for digital libraries and archives, both for access and preservation. (Source Code) Apache-2.0 Java
DSpace
Turnkey repository application providing durable access to digital resources. (Source Code) BSD-3-Clause Java
Stump
A fast, free and open source comics, manga and digital book server with OPDS support. (Source Code) MIT Rust
Calibre
E-book library manager that can view, convert, and catalog e-books in most of the major e-book formats and provides a built-in Web server for remote clients. (Demo, Source Code) GPL-3.0 Python/deb
I, Librarian
Organize PDF papers and office documents. It provides a lot of extra features for students and research groups both in industry and academia. (Demo, Source Code) GPL-3.0 PHP
Maza ad blocking
Local ad blocker. 点赞 Pi-hole but local and using your operating system. (Source Code) Apache-2.0 Shell
Limbas
Database framework for creating database-driven business applications. As a graphical database frontend, it enables the efficient processing of data stocks and the flexible development of comfortable database applications. (Source Code) GPL-2.0 PHP
Evidence
Code-based BI tool. Write reports using SQL and markdown and they render as a website. (Source Code) MIT Nodejs
d9
Turn SQL databases into secure APIs through an intuitive admin interface. Data platform and headless CMS (fork of Directus). (Source Code) GPL-3.0 Nodejs
Adminer
Database management in a single PHP file. Available for MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, Oracle, Elasticsearch, MongoDB and others. (Source Code) Apache-2.0/GPL-2.0 PHP
SuiteCRM
The award-winning, enterprise-class open source CRM. (Source Code) AGPL-3.0 PHP
Krayin
CRM solution for SMEs and Enterprises for complete customer lifecycle management. (Demo, Source Code) MIT PHP
EspoCRM
CRM with a frontend designed as a single page application, and a REST API. (Demo, Source Code) AGPL-3.0 PHP
Django-CRM
Analytical CRM with tasks management, email marketing and many more. Django CRM is built for individual use, businesses of any size or freelancers and is designed to provide easy customization and quick development. (Source Code) AGPL-3.0 Python
Corteza
CRM including a unified workspace, enterprise messaging and a low code environment for rapidly and securely delivering records-based management solutions. (Demo, Source Code) Apache-2.0 Go
WordPress
World's most-used blogging and CMS engine. (Source Code) GPL-2.0 PHP
WonderCMS
WonderCMS is the smallest flat file CMS since 2008. (Demo, Source Code) MIT PHP
WinterCMS
Speedy and secure content management system built on the Laravel PHP framework. (Source Code) MIT PHP
Wagtail
Django content management system focused on flexibility and user experience. (Source Code) BSD-3-Clause Python
Umbraco
The friendly CMS. Free and open source with an amazing community. (Source Code) MIT .NET
TYPO3
Powerful and advanced CMS with a large community. (Source Code) GPL-2.0 PHP
Typemill
Author-friendly flat-file-cms with a visual markdown editor based on vue.js. (Source Code) MIT PHP
Textpattern
Flexible, elegant and easy-to-use CMS. (Demo, Source Code) GPL-2.0 PHP
Squidex
Headless CMS, based on MongoDB, CQRS and Event Sourcing. (Demo, Source Code) MIT .NET
SPIP
Publication system for the Internet aimed at collaborative work, multilingual environments, and simplicity of use for web authors. (Source Code) GPL-3.0 PHP
SilverStripe
Easy to use CMS with powerful MVC framework underlying. (Demo, Source Code) BSD-3-Clause PHP
Publify
Simple but full featured web publishing software. (Source Code) MIT Ruby
Payload CMS
Developer-first headless CMS and application framework. (Source Code) MIT Nodejs
Neos
Neos or TYPO3 Neos (for version 1) is a modern, open source CMS. (Source Code) GPL-3.0 PHP
MODX
Advanced content management and publishing platform. The current version is called 'Revolution'. (Source Code) GPL-2.0 PHP
Joomla!
Advanced Content Management System (CMS). (Source Code) GPL-2.0 PHP
Drupal
Advanced open source content management platform. (Source Code) GPL-2.0 PHP
CouchCMS
CMS for designers. (Source Code) CPAL-1.0 PHP
Contao
Powerful CMS that allows you to create professional websites and scalable web applications. (Demo, Source Code) LGPL-3.0 PHP
Concrete 5 CMS
Open source content management system. (Source Code) MIT PHP
Cockpit
Simple content platform to manage any structured content. (Source Code) MIT PHP
CMS Made Simple
Faster and easier management of website contents, scalable for small businesses to large corporations. (Source Code) GPL-2.0 PHP
Bolt CMS
Content Management Tool, which strives to be as simple and straightforward as possible. (Source Code) MIT PHP
Backdrop CMS
Comprehensive CMS for small to medium sized businesses and non-profits. (Source Code) GPL-2.0 PHP
Apostrophe
CMS with a focus on extensible in-context editing tools. (Demo, Source Code) MIT Nodejs
Alfresco Community Edition
The open source Enterprise Content Management software that handles any type of content, allowing users to easily share and collaborate on content. (Source Code) LGPL-3.0 Java
pretalx
Web-based event management, including running a Call for Papers, reviewing submissions, and scheduling talks. Exports and imports for various related tools. (Source Code) Apache-2.0 Python
OpenSlides
Presentation and assembly system for managing and projecting agenda, motions and elections of an assembly. (Demo, Source Code) MIT Docker
indico
Feature-rich event management system, made @ CERN, the place where the Web was born. (Demo, Source Code) MIT Python
OpenOlitor
Administration platform for Community Supported Agriculture groups. (Source Code) AGPL-3.0 Scala
Open Food Network
Online marketplace for local food. It enables a network of independent online food stores that connect farmers and food hubs with individuals and local businesses. (Source Code) AGPL-3.0 Ruby
juntagrico
Management platform for community gardens and vegetable cooperatives. (Source Code) LGPL-3.0 Python
ACP Admin
CSA administration. Manage members, subscriptions, deliveries, drop-off locations, member participation, invoices and emails (documentation in French). (Source Code) MIT Ruby
Salut à Toi
Multipurpose, multi frontend, libre and decentralized communication tool. (Source Code) AGPL-3.0 Python
Converse.js
XMPP chat client in your browser. (Source Code) MPL-2.0 Javascript
Tigase
XMPP server implementation in Java. (Source Code) GPL-3.0 Java
Prosody IM
Feature-rich and easy to configure XMPP server. (Source Code) MIT Lua
Openfire
Real time collaboration (RTC) server. (Source Code) Apache-2.0 Java
Jitsi Video Bridge
WebRTC compatible Selective Forwarding Unit (SFU) that allows for multiuser video communication. (Source Code) Apache-2.0 Java/deb
Janus
General-purpose, lightweight, minimalist WebRTC Server. (Demo, Source Code) GPL-3.0 C
Galene
Video conferencing server that is easy to deploy and that requires moderate server resources. (Source Code) MIT Go
BigBlueButton
Supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students with polling, emojis, and breakout rooms. (Source Code) LGPL-3.0 Java
Simple Machines Forum
Free, professional grade software package that allows you to set up your own online community within minutes. (Source Code) BSD-3-Clause PHP
qpixel
Q&A-based community knowledge-sharing software. (Source Code) AGPL-3.0 Ruby
Pleroma
Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible. (Source Code) AGPL-3.0 Elixir
PixelFed
Ethical photo sharing platform, powered by ActivityPub federation (alternative to Instagram). (Source Code) AGPL-3.0 PHP
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. (Source Code) GPL-2.0 PHP
OSSN
Social networking software that allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests. (Source Code) CAL-1.0 PHP
MyBB
Free, extensible forum software package. (Source Code) LGPL-3.0 PHP
HumHub
Flexible kit for private social networks. (Source Code) AGPL-3.0 PHP
Hubzilla
Decentralized identity, privacy, publishing, sharing, cloud storage, and communications/social platform. (Source Code) MIT PHP
Friendica
Social Communication Server. (Source Code) AGPL-3.0 PHP
Flarum
Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again. (Source Code) MIT PHP
Elgg
Powerful open source social networking engine. (Source Code) GPL-2.0 PHP
diaspora*
Distributed social networking server. (Source Code) AGPL-3.0 Ruby
BuddyPress
Powerful plugin that takes your WordPress.org powered site beyond the blog with social-network features like user profiles, activity streams, user groups, and more. (Source Code) GPL-2.0 PHP
AsmBB
Fast, SQLite-powered forum engine written in ASM. (Source Code) EUPL-1.2 Assembly
Yeti-Switch
Transit class4 softswitch(SBC) with integrated billing and routing engine and REST API. (Demo, Source Code) GPL-2.0 C++/Ruby
Wazo
Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API. (Source Code) GPL-3.0 Python
SIP3
VoIP troubleshooting and monitoring platform. (Demo, Source Code) Apache-2.0 Java
openSIPS
SIP proxy/server for voice, video, IM, presence and any other SIP extensions. (Source Code) GPL-2.0 C
Kamailio
Modular SIP server (registrar/proxy/router/etc). (Source Code) GPL-2.0 C/deb
FusionPBX
Web interface for multi-platform voice switch called FreeSWITCH. (Source Code) MPL-1.1 PHP
FreeSWITCH
Scalable open source cross-platform telephony platform. (Source Code) MPL-2.0 C
Freepbx
Web-based open source GUI that controls and manages Asterisk. (Source Code) GPL-2.0 PHP
Asterisk
Easy to use but advanced IP PBX system, VoIP gateway and conference server. (Source Code) GPL-2.0 C/deb
ZNC
Advanced IRC bouncer. (Source Code) Apache-2.0 C++/deb
UnrealIRCd
Modular, advanced and highly configurable IRC server written in C for Linux, BSD, Windows, and macOS. (Source Code) GPL-2.0 C
Robust IRC
IRC without netsplits. Distributed IRC server, based on RobustSession protocol. (Source Code) BSD-3-Clause Go
Quassel IRC
Distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a central core. (Source Code) GPL-2.0 C++
ngircd
Portable and lightweight Internet Relay Chat server for small or private networks. (Source Code) GPL-2.0 C/deb
Kiwi IRC
Responsive web IRC client with theming support. (Demo, Source Code) Apache-2.0 Nodejs
SquirrelMail
Another browser-based IMAP client. (Source Code) GPL-2.0 PHP
SnappyMail
Simple, modern, lightweight & fast web-based email client (fork of RainLoop). (Demo, Source Code, Clients) AGPL-3.0 PHP
Roundcube
Browser-based IMAP client with an application-like user interface. (Source Code) GPL-3.0 PHP/deb
Cypht
Feed reader for your email accounts. (Source Code) LGPL-2.1 PHP
Sympa
Mailing list manager. (Source Code) GPL-2.0 Perl
Schleuder
GPG-enabled mailing list manager with resending-capabilities. (Source Code) GPL-3.0 Ruby
Postorius
Web user interface to access GNU Mailman. (Source Code) GPL-3.0 Python
phpList
Newsletter and email marketing with advanced management of subscribers, bounces, and plugins. (Source Code) AGPL-3.0 PHP
mlmmj
Mailing list management made joyful. (Source Code) MIT C
Mailman
Manage electronic mail discussion and e-newsletter lists. (Source Code) GPL-3.0 Python
HyperKitty
Access GNU Mailman v3 archives. (Demo, Source Code) GPL-3.0 Python
OpenSMTPD
Secure SMTP server implementation from the OpenBSD project. (Source Code) ISC C/deb
Haraka
Fast, highly extensible, and event driven SMTP server. (Source Code) MIT Nodejs
EmailRelay
A small and easy to configure SMTP and POP3 server for Windows and Linux. (Source Code) GPL-3.0 C++
DragonFly
A small MTA for home and office use. Works on Linux and FreeBSD. BSD-3-Clause C
Courier MTA
Fast, scalable, enterprise mail/groupware server providing ESMTP, IMAP, POP3, webmail, mailing list, basic web-based calendaring and scheduling services. (Source Code) GPL-3.0 C/deb
chasquid
SMTP (email) server with a focus on simplicity, security, and ease of operation. (Source Code) Apache-2.0 Go
Dovecot
IMAP and POP3 server written primarily with security in mind. (Source Code) MIT/LGPL-2.1 C/deb
Cyrus IMAP
Email (IMAP/POP3), contacts and calendar server. (Source Code) BSD-3-Clause-Attribution C
Simple NixOS Mailserver
Complete mailserver solution leveraging the Nix Ecosystem. GPL-3.0 Nix
Mail-in-a-Box
Turns any Ubuntu server into a fully functional mail server with one command. (Source Code) CC0-1.0 Shell
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. (Source Code) GPL-3.0 Go
iRedMail
Full-featured mail server solution based on Postfix and Dovecot. (Source Code) GPL-3.0 Shell
Dovel
SMTP server that sends and receives emails according to a simple configuration file, with an optional web interface that you can use to browse your emails. (Source Code) LGPL-3.0 Go
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. (Source Code) GPL-3.0 Ansible/Python
b1gMail
Complete email solution that runs on any webspace with PHP and MariaDB. It supports POP3 catchall mailboxes and can also integrate with Postfix or b1gMailServer if you're running your own server. (Source Code, Clients) GPL-2.0 PHP
Zulip
Zulip is a powerful, open source group chat application. (Source Code) Apache-2.0 Python
Tox
Distributed, secure messenger with audio and video chat capabilities. (Source Code) GPL-3.0 C
Synapse
Server for Matrix, an open standard for decentralized persistent communication. (Source Code) Apache-2.0 Python/deb
Stoat
Stoat is a user-first chat platform built with modern web technologies. (Source Code) AGPL-3.0/MIT Rust
Spectrum 2
Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks. (Source Code) GPL-3.0 C++
RetroShare
Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. (Source Code) GPL-2.0 C++
OTS
One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser. (Source Code) Apache-2.0 Go
Mumble
Low-latency, high quality voice/text chat software. (Source Code, Clients) BSD-3-Clause C++/deb
Live Helper Chat
Live Support chat for your website. (Source Code) Apache-2.0 PHP
Jami
Universal communication platform which preserves the user's privacy and freedoms. (Source Code) GPL-3.0 C++
Hyphanet
Anonymously share files, browse and publish _freesites_ (web sites accessible only through Hyphanet) and chat on forums. (Source Code) GPL-2.0 Java
GNUnet
Software framework for decentralized, peer-to-peer networking. (Source Code) GPL-3.0 C
Element
Fully-featured Matrix client for Web, iOS & Android. (Source Code) Apache-2.0 Nodejs
Conduit
A simple, fast, and reliable chat server powered by Matrix. (Source Code) Apache-2.0 Rust
Chitchatter
Peer-to-peer chat app that is serverless, decentralized, and ephemeral. (Source Code) GPL-2.0 Nodejs
SabreDAV
Open source CardDAV, CalDAV, and WebDAV framework and server. (Source Code) MIT PHP
Radicale
Simple calendar and contact server with extremely low administrative overhead. (Source Code) GPL-3.0 Python/deb
DAViCal
Server for calendar sharing (CalDAV) that uses a PostgreSQL database as a data store. (Source Code) GPL-2.0 PHP/deb
Baïkal
Lightweight CalDAV and CardDAV server based on sabre/dav. (Source Code) GPL-3.0 PHP
SyncMarks
Sync and manage your browser bookmarks from Edge, Firefox and Chromium. (Clients) AGPL-3.0 PHP
Betula
Single-user federated bookmark manager with Fediverse support and archives. (Source Code) AGPL-3.0 Go
QloApps
Customizable and intuitive web-based hotel reservation system and a booking engine. (Demo, Source Code) OSL-3.0 PHP/Nodejs
Easy!Appointments
Allows your customers to book appointments with you via the web. (Demo, Source Code) GPL-3.0 PHP
Cal.diy
Online appointment scheduling system. (Source Code) MIT Nodejs
Alf.io
Ticket reservation system. (Demo, Source Code) GPL-3.0 Java
WriteFreely
Writing software for starting a minimalist, federated blog — or an entire community. (Source Code) AGPL-3.0 Go
Serendipity
Serendipity (s9y) is a highly extensible and customizable PHP blog engine using Smarty templating. (Source Code) BSD-3-Clause PHP
PluXml
XML-based blog/CMS platform. (Source Code) GPL-3.0 PHP
Mataroa
Naked blogging platform for minimalists. (Source Code) MIT Python
Known
Collaborative social publishing platform. (Source Code) Apache-2.0 PHP
HTMLy
Databaseless PHP blogging platform. A flat-file CMS that allows you to create a fast, secure, and powerful website or blog in seconds. (Demo, Source Code) GPL-2.0 PHP
Haven
Private blogging system with markdown editing and built in RSS reader. (Demo, Source Code) MIT Ruby
Ghost
Just a blogging platform. (Source Code) MIT Nodejs
FlatPress
A lightweight, easy-to-set-up flat-file blogging engine. (Source Code) GPL-2.0 PHP
Chyrp Lite
Extra-awesome, extra-lightweight blog engine. (Source Code) BSD-3-Clause PHP
OliveTin
Web interface for running Linux shell commands. (Source Code) AGPL-3.0 Go
Leon
Personal assistant who can live on your server. (Source Code) MIT Nodejs
Kibitzr
Lightweight personal web assistant with powerful integrations. (Source Code) MIT Python
Collective Access – Providence
Highly configurable Web-based framework for management, description, and discovery of digital and physical collections supporting a variety of metadata standards, data types, and media formats. (Source Code) GPL-3.0 PHP
Netron
Visualizer for neural network and machine learning models. (Source Code) MIT Python/Nodejs
GoAccess
Real-time web log analyzer and interactive viewer that runs in a terminal. (Source Code) GPL-2.0 C