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A list of Free Software network services and web applications which can be hosted on your own servers

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Awesome-Selfhosted

Awesome

Self-hosting is the practice of hosting and managing applications on your own server(s) instead of consuming from SaaSS providers.

This is a list of Free Software network services and web applications which can be hosted on your own server(s). Non-Free software is listed on the Non-Free page.

HTML version (recommended), Markdown version (legacy).

See Contributing.

Table of contents

Software

Analytics

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Analytics is the systematic computational analysis of data or statistics. It is used for the discovery, interpretation, and communication of meaningful patterns in data.

Related: Database Management, Personal Dashboards

  • Aptabase - Open source, privacy first and simple analytics for mobile and desktop apps. (Source Code) AGPL-3.0 Docker
  • AWStats - Generate statistics from web, streaming, ftp or mail server logfiles. (Demo, Source Code) GPL-3.0 Perl
  • Countly Community Edition - Real time mobile and web analytics, crash reporting and push notifications platform. (Source Code) AGPL-3.0 Nodejs/Docker
  • Druid - Distributed, column-oriented, real-time analytics data store. (Source Code) Apache-2.0 Java/Docker
  • EDA - Web application for data analysis and visualization. (Source Code) AGPL-3.0 Nodejs/Docker
  • Fathom Lite - A simple and privacy-focused web analytics (alternative to Google Analytics). MIT Go/Docker
  • GoAccess - Real-time web log analyzer and interactive viewer that runs in a terminal. (Source Code) GPL-2.0 C
  • GoatCounter - Easy web statistics without tracking of personal data. (Source Code) EUPL-1.2 Go
  • Matomo - Google Analytics alternative that protects your data and your customers' privacy. (Source Code) GPL-3.0 PHP
  • Metabase - Easy, open-source way for everyone in your company to ask questions and learn from data. (Source Code) AGPL-3.0 Java/Docker
  • Middleware - Tool designed to help engineering leaders measure and analyze the effectiveness of their teams using the DORA metrics. (Source Code) Apache-2.0 Docker/Python/Nodejs
  • Mixpost - Self-hosted social media management software. Easily create, schedule, publish, and manage social media content in one place (alternative to Hootsuite, Buffer, and other social media tools). (Source Code) MIT PHP/Docker
  • Netron - Visualizer for neural network and machine learning models. (Source Code) MIT Python/Nodejs
  • Offen - Fair, lightweight and open web analytics tool. Gain insights while your users have full access to their data. (Demo, Source Code) Apache-2.0 Go/Docker
  • Open Web Analytics - Web analytics framework that lets you stay in control of how you instrument and analyze the use of your websites and applications. (Source Code) GPL-2.0 PHP
  • Plausible Analytics - Simple, open-source, lightweight (< 1 KB) and privacy-friendly web analytics. (Source Code) AGPL-3.0 Elixir
  • PostHog - Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel/Amplitude/Heap/HotJar/Optimizely). (Source Code) MIT Python
  • Prisme Analytics - A privacy-focused and progressive analytics service based on Grafana. (Demo, Source Code) AGPL-3.0/MIT Docker
  • Redash - Connect and query your data sources, build dashboards to visualize data and share them with your company. (Source Code) BSD-2-Clause Docker
  • RudderStack - Collect, unify, transform, and store your customer data, and route it to a wide range of common, popular marketing, sales, and product tools (alternative to Segment). (Source Code) AGPL-3.0 Docker/K8S/Go/Nodejs
  • Shynet - Modern, privacy-friendly, and detailed web analytics that works without cookies or JS. Apache-2.0 Python/Docker
  • Socioboard ⚠ - Social media management, analytics, and reporting platform supporting nine social media networks out-of-the-box. GPL-3.0 Nodejs
  • Superset - Modern data exploration and visualization platform. (Source Code) Apache-2.0 Python
  • Swetrix - Ultimate, open-source web analytics to satisfy all your needs. (Demo, Source Code) AGPL-3.0 Docker
  • Umami - Simple, fast, privacy-focused alternative to Google Analytics. (Demo, Source Code) MIT Nodejs/Docker

Archiving and Digital Preservation (DP)

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Digital archiving and preservation software.

Related: Content Management Systems (CMS)

See also: awesome-web-archiving

  • ArchiveBox - Self-hosted wayback machine that creates HTML & screenshot archives of sites from your bookmarks, browsing history, RSS feeds, or other sources. (Source Code) MIT Python/Docker
  • ArchivesSpace - Archives information management application for managing and providing Web access to archives, manuscripts and digital objects. (Demo, Source Code) ECL-2.0 Ruby
  • bitmagnet - A self-hosted BitTorrent indexer, DHT crawler, content classifier and torrent search engine with web UI, GraphQL API and Servarr stack integration. (Source Code) MIT Go/Docker
  • CKAN - CKAN is a tool for making open data websites. (Source Code) AGPL-3.0 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
  • Ganymede ⚠ - Twitch VOD and Live Stream archiving platform. Includes a rendered chat for each archive. GPL-3.0 Docker
  • LiveStreamDVR ⚠ - An automatic Twitch recorder capable of capturing live streams, chat messages and stream metadata. MIT Python/Nodejs/Docker
  • 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. (Source Code) GPL-3.0 Nodejs
  • Wallabag - Wallabag, formerly Poche, is a web application allowing you to save articles to read them later with improved readability. (Source Code) MIT PHP
  • Wayback - A self-hosted toolkit for archiving webpages to the Internet Archive, archive.today, IPFS, and local file systems. GPL-3.0 Go
  • Webarchive - Lightweight self-hosted wayback machine that creates HTML and PDF files from your bookmarks. BSD-3-Clause Go

Automation

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Automation software designed to reduce human intervention in processes.

Related: Internet of Things (IoT), Software Development - Continuous Integration & Deployment

  • Activepieces - No-code business automation tool like Zapier or Tray. For example, you can send a Slack notification for each new Trello card. (Source Code) MIT Docker
  • Apache Airflow - Airflow is a platform to programmatically author, schedule, and monitor workflows. (Source Code) Apache-2.0 Python/Docker
  • Automatisch - Business automation tool that lets you connect different services like Twitter, Slack, and more to automate your business processes (alternative to Zapier). (Source Code) AGPL-3.0 Docker
  • betanin - Music organization man-in-the-middle of your torrent client and music player. Based on beets.io, similar to Sonarr and Radarr. GPL-3.0 Python/Docker
  • changedetection.io - Self-hosted tool for staying up-to-date with web-site content changes. Apache-2.0 Python/Docker
  • ChiefOnboarding - Employee onboarding platform that allows you to provision user accounts and create sequences with todo items, resources, text/email/Slack messages, and more! Available as a web portal and Slack bot. (Source Code) AGPL-3.0 Docker
  • Dagu - Powerful Cron alternative with a Web UI. It allows you to define dependencies between commands as a Directed Acyclic Graph (DAG) in a declarative YAML format. (Source Code) GPL-3.0 Go/Docker
  • Dittofeed - Omni-channel customer engagement and messaging automation platform (alternative to Braze, Customer.io, Iterable). (Demo, Source Code) MIT Docker
  • Exadel CompreFace - Face recognition system that provides REST API for face recognition, face detection, and other face services, and is easily deployed with docker. There are SDKs for Python and JavaScript languages. Can be used without prior machine learning skills. (Source Code) Apache-2.0 Docker/Java/Nodejs
  • feedmixer - FeedMixer is a WSGI (Python3) micro web service which takes a list of feed URLs and returns a new feed consisting of the most recent n entries from each given feed(Returns Atom, RSS, or JSON). (Demo) WTFPL Python
  • Headphones - Automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent, Deluge and Blackhole. GPL-3.0 Python
  • Healthchecks - Django app which listens for pings and sends alerts when pings are late. (Source Code) BSD-3-Clause Python
  • HRConvert2 - Drag-and-drop file conversion server with session based authentication, automatic temporary file maintenance, and logging capability. GPL-3.0 PHP
  • Huginn - Allows you to build agents that monitor and act on your behalf. MIT Ruby
  • Kestra - Event-driven, language-agnostic platform to create, schedule, and monitor workflows. In code. Coordinate data pipelines and tasks such as ETL and ELT. (Source Code) Apache-2.0 Docker
  • Kibitzr - Lightweight personal web assistant with powerful integrations. (Source Code) MIT Python
  • Krayin - Free and Opensource Laravel CRM Application. (Demo, Source Code) MIT PHP
  • 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. GPL-3.0 Python
  • Leon - Open-source personal assistant who can live on your server. (Source Code) MIT Nodejs
  • Lidarr - Lidarr is a music collection manager for Usenet and BitTorrent users. (Source Code) GPL-3.0 C#/Docker
  • Matchering - A containerized web app for automated music mastering (alternative to LANDR, eMastered, and MajorDecibel). GPL-3.0 Docker
  • 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. (Source Code, Clients) GPL-3.0 Python
  • MetaTube ⚠ - A Web GUI to automatically download music from YouTube add metadata from Spotify, Deezer or Musicbrainz. GPL-3.0 Python
  • MeTube - Web GUI for youtube-dl, with playlist support. Allows downloading videos from dozens of websites. AGPL-3.0 Python/Nodejs/Docker
  • Mylar3 - Automated Comic Book (cbr/cbz) downloader program for use with NZB and torrents. (Source Code) GPL-3.0 Python/Docker
  • nefarious - Web application that automates downloading Movies and TV Shows. GPL-3.0 Python
  • OliveTin - OliveTin is a web interface for running Linux shell commands. AGPL-3.0 Go
  • pyLoad - Lightweight, customizable and remotely manageable downloader for 1-click-hosting sites like rapidshare.com or uploaded.to. (Source Code) GPL-3.0 Python
  • Radarr - Radarr is an independent fork of Sonarr reworked for automatically downloading movies via Usenet and BitTorrent, à la Couchpotato. (Source Code) GPL-3.0 C#/Docker
  • SickChill - SickChill is an 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. (Source Code) GPL-3.0 Python/Docker
  • Sonarr - Automatic TV Shows downloader and manager for Usenet and BitTorrent. It can grab, sort and rename new episodes and automatically upgrade the quality of files already downloaded when a better quality format becomes available. (Source Code) GPL-3.0 C#/Docker
  • StackStorm - StackStorm (aka IFTTT for Ops) is event-driven automation for auto-remediation, security responses, troubleshooting, deployments, and more. Includes rules engine, workflow, 160 integration packs with 6000+ actions and ChatOps. (Source Code) Apache-2.0 Python
  • tubesync ⚠ - Syncs YouTube channels and playlists to a locally hosted media server. AGPL-3.0 Docker/Python
  • ydl_api_ng - Simple youtube-dl REST API to launch downloads on a distant server. GPL-3.0 Python
  • YoutubeDL-Material - Material Design inspired YouTube downloader, based on youtube-dl. Supports playlists, quality select, search, dark mode and much more, all with a clean and modern design. MIT Nodejs/Docker
  • YoutubeDL-Server - Web and REST interface for downloading videos onto a server. MIT Python/Docker
  • yt-dlp Web UI - Web GUI for yt-dlp. MPL-2.0 Docker/Go/Nodejs
  • µTask - Automation engine that models and executes business processes declared in yaml. BSD-3-Clause Go/Docker

Backup

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Backup software.

Please visit awesome-sysadmin/Backups

Blogging Platforms

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A blog is a discussion or informational website consisting of discrete, diary-style text entries (posts).

Related: Static Site Generators, Content Management Systems (CMS)

See also: WeblogMatrix

  • Antville - Free, open source project aimed at the development of a high performance, feature rich weblog hosting software. (Source Code) Apache-2.0 Javascript
  • Castopod - A podcast management hosting platform that includes the latest podcast 2.0 standards, an automated Fediverse feed, analytics, an embeddable player, and more. (Source Code) AGPL-3.0 PHP/Docker
  • Chyrp Lite - Extra-awesome, extra-lightweight blog engine. (Source Code) BSD-3-Clause PHP
  • Dotclear - Take control over your blog. GPL-2.0 PHP
  • FlatPress - A lightweight, easy-to-set-up flat-file blogging engine. (Source Code) GPL-2.0 PHP
  • Ghost - Just a blogging platform. (Source Code) MIT Nodejs
  • Haven - Private blogging system with markdown editing and built in RSS reader. (Demo, Source Code) MIT Ruby
  • Known - A collaborative social publishing platform. (Source Code) Apache-2.0 PHP
  • Mataroa - Mataroa is a naked blogging platform for minimalists. (Source Code) MIT Python
  • PluXml - XML-based blog/CMS platform. (Source Code) GPL-3.0 PHP
  • Serendipity - Serendipity (s9y) is a highly extensible and customizable PHP blog engine using Smarty templating. (Source Code) BSD-3-Clause PHP
  • WriteFreely - Writing software for starting a minimalist, federated blog — or an entire community. (Source Code) AGPL-3.0 Go

Booking and Scheduling

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Event scheduling, reservation, and appointment management software.

Related: Polls and Events

  • Alf.io - The open source ticket reservation system. (Demo, Source Code) GPL-3.0 Java
  • Cal.com - The open-source online appointment scheduling system. (Demo, Source Code) MIT Nodejs
  • Easy!Appointments - A highly customizable web application that allows your customers to book appointments with you via the web. (Demo, Source Code) GPL-3.0 PHP
  • Hi.Events - Event management and ticketing platform for conferences, concerts, and more. Offering customizable event pages and embeddable ticket widgets. (Demo, Source Code) AGPL-3.0 Docker
  • QloApps - An open-source, customizable and intuitive web-based hotel reservation system and a booking engine. (Demo, Source Code) OSL-3.0 PHP/Nodejs
  • Rallly - Create polls to vote on dates and times (alternative to Doodle). (Demo, Source Code) AGPL-3.0 Nodejs/Docker
  • Seatsurfing - Webbased app to book seats, desks and rooms for offices. (Source Code) GPL-3.0 Docker

Bookmarks and Link Sharing

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Software which allows users to add, annotate, edit, and share bookmarks of web documents.

  • Briefkasten - Modern app for saving and managing your own bookmarks. Includes a browser extension. (Demo) MIT Nodejs/Docker
  • Buku - A powerful bookmark manager and a personal textual mini-web. GPL-3.0 Python/deb
  • Digibunch - Create bunches of links to share with your learners or colleagues. (Demo, Source Code) AGPL-3.0 Nodejs/PHP
  • Espial - An open-source, web-based bookmarking server. AGPL-3.0 Haskell
  • Firefox Account Server - This allows you to host your own Firefox accounts server. (Source Code) MPL-2.0 Nodejs/Java
  • Grimoire - Bookmark manager with a modern UI, automatic content & metadata extraction, categorization, filtering, and more. It has fully documented REST API, and Docker image for easy deployment. (Source Code) MIT Nodejs/Docker
  • Hackershare - Social bookmarks website for hackers. MIT Ruby
  • Hoarder App - A self-hostable bookmark-everything app with a touch of AI for the data hoarders out there. (Demo, Source Code) AGPL-3.0 Docker
  • 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. (Demo, Source Code) GPL-3.0 Docker/PHP
  • linkding - Minimal bookmark management with a fast and clean UI. Simple installation through Docker and can run on your Raspberry Pi. MIT Docker/Python/Nodejs
  • LinkWarden - A self-hosted bookmark + archive manager to store your useful links. (Source Code) MIT Docker/Nodejs
  • NeonLink - Self-hosted bookmark service with unique design and simple installation with Docker. MIT Docker
  • Readeck - Readeck is a simple web application that lets you save the precious readable content of web pages you like and want to keep forever. See it as a bookmark manager and a read later tool. (Source Code, Clients) AGPL-3.0 Go/Docker
  • Servas - A self-hosted bookmark management tool. It allows organization with tags, groups, and a list specifically for later access. It supports multiple users with 2FA. Companion browser extensions are available for Firefox and Chrome. (Clients) GPL-3.0 Docker/Nodejs/PHP
  • Shaarli - Personal, minimalist, super-fast, no-database bookmarking and link sharing platform. (Demo) Zlib PHP/deb
  • Shiori - Simple bookmark manager built with Go. MIT Go/Docker
  • Slash - An open source, self-hosted bookmarks and link sharing platform. GPL-3.0 Docker
  • SyncMarks - Sync and manage your browser bookmarks from Edge, Firefox and Chromium. (Clients) AGPL-3.0 PHP

Calendar & Contacts

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CalDAV and CardDAV protocol servers and web clients/interfaces for Electronic calendar, address book and contact management.

Related: Groupware

See also: Comparison of CalDAV and CardDAV implementations - Wikipedia

  • Baïkal - Lightweight CalDAV and CardDAV server based on sabre/dav. (Source Code) GPL-3.0 PHP
  • DAViCal - Server for calendar sharing (CalDAV) that uses a PostgreSQL database as a data store. (Source Code) GPL-2.0 PHP/deb
  • Davis - A simple, dockerizable and fully translatable admin interface for sabre/dav based on Symfony 5 and Bootstrap 4, largely inspired by Baïkal. MIT PHP
  • Etebase (EteSync) - End-to-end encrypted and journaled personal information server supporting calendar and contact data, offering its own clients. (Source Code) AGPL-3.0 Python/Django
  • EteSync Web - EteSync's official Web-based client (i.e., their Web app). (Demo, Source Code) AGPL-3.0 Javascript
  • Manage My Damn Life - Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars. GPL-3.0 Nodejs/Docker
  • Radicale - Simple calendar and contact server with extremely low administrative overhead. (Source Code) GPL-3.0 Python/deb
  • SabreDAV - Open source CardDAV, CalDAV, and WebDAV framework and server. (Source Code) MIT PHP
  • Xandikos - Open source CardDAV and CalDAV server with minimal administrative overhead, backed by a Git repository. GPL-3.0 Python/deb

Communication - Custom Communication Systems

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Communication software used to provide remote access to systems and exchange files and messages in text, audio and/or video formats between different computers or users, using their own custom protocols.

  • AnyCable - Realtime server for reliable two-way communication over WebSockets, Server-sent events, etc. (Demo, Source Code) MIT Go/Docker
  • Apprise - Apprise allows you to send a notification to almost all of the most popular notification services available to us today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc. MIT Python/Docker/deb
  • Centrifugo - Language-agnostic real-time messaging (Websocket or SockJS) server. (Demo, Source Code) MIT Go/Docker/K8S
  • Chatwoot - Self-hosted customer communication platform (alternative to Intercom & Zendesk). (Source Code) MIT Ruby/Docker/K8S
  • Chitchatter - A peer-to-peer chat app that is serverless, decentralized, and ephemeral. (Source Code) GPL-2.0 Nodejs
  • Conduit - A simple, fast, and reliable chat server powered by Matrix. (Source Code) Apache-2.0 Rust
  • conduwuit - Well-maintained, featureful Matrix chat homeserver (fork of Conduit). (Source Code) Apache-2.0 Rust
  • Darkwire.io - End-to-end encrypted instant web chat. MIT Nodejs
  • Databag - Federated, end-to-end encrypted messaging service for the web, iOS, and Android, supporting text, photos, video, and WebRTC video and audio calls. (Demo) Apache-2.0 Docker
  • Dendrite - Second-generation Matrix homeserver written in Go. It intends to provide an efficient, reliable and scalable alternative to Synapse. (Source Code) Apache-2.0 Go
  • Element - Fully-featured Matrix client for Web, iOS & Android. (Source Code) Apache-2.0 Nodejs
  • GNUnet - Free software framework for decentralized, peer-to-peer networking. (Source Code) GPL-3.0 C
  • Gotify - Self-hosted notification server with Android and CLI clients, similar to PushBullet. (Source Code, Clients) MIT Go/Docker
  • Hyphanet - Anonymously share files, browse and publish freesites (web sites accessible only through Hyphanet) and chat on forums. (Source Code) GPL-2.0 Java
  • Jami - Free and universal communication platform which preserves the user's privacy and freedoms (formerly GNU Ring). (Source Code) GPL-3.0 C++
  • KChat - PHP Based Live Chat Application. Apache-2.0 PHP
  • Live Helper Chat - Live Support chat for your website. (Source Code) Apache-2.0 PHP
  • Mattermost - Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack). (Source Code) AGPL-3.0/Apache-2.0 Go/Docker/K8S
  • MiAOU - Multi-room persistent chat server. (Source Code) MIT Nodejs
  • Mumble - Low-latency, high quality voice/text chat software. (Source Code, Clients) BSD-3-Clause C++/deb
  • Notifo - Multichannel notification server with support for Email, Mobile Push, Web Push, SMS, messaging and a javascript plugin. MIT C#
  • Novu - Self-hosted / cloud notification infrastructure for developers. (Source Code) MIT Docker/Nodejs
  • ntfy - Push notifications to phone or desktop using HTTP PUT/POST, with Android app, CLI and web app, similar to Pushover and Gotify. (Demo, Source Code, Clients) Apache-2.0/GPL-2.0 Go/Docker/K8S
  • OTS - One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser. (Source Code) Apache-2.0 Go
  • PushBits - Self-hosted notification server for relaying push notifications via Matrix, similar to PushBullet and Gotify. ISC Go
  • RetroShare - Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer. (Source Code) GPL-2.0 C++
  • Revolt - Revolt is a user-first chat platform built with modern web technologies. (Source Code) AGPL-3.0 Rust
  • Rocket.Chat - Teamchat solution similar to Gitter.im or Slack. (Source Code) MIT Nodejs/Docker/K8S
  • Screego - Screego is a simple tool to quickly share your screen to one or multiple people via web browser. (Demo, Source Code) GPL-3.0 Docker/Go
  • Shhh - Keep secrets out of emails or chat logs, share them using secure links with passphrase and expiration dates. MIT Python
  • SimpleX Chat - The most private and secure chat and applications platform - now with double ratchet E2E encryption. AGPL-3.0 Haskell
  • Soketi - Simple, fast, and resilient open-source WebSockets server (drop-in alternative to Pusher). (Source Code) MIT Nodejs/Docker/K8S
  • 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++
  • Synapse - Server for Matrix, an open standard for decentralized persistent communication. (Source Code) Apache-2.0 Python/deb
  • Syndie - Syndie is a libre system for operating distributed forums. CC0-1.0 Java
  • Tailchat - Next generation noIM application in your own workspace, not only another Slack/Discord/rocket.chat. (Demo, Source Code) Apache-2.0 Docker/K8S/Nodejs
  • TextBelt ⚠ - Outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads. MIT Javascript
  • Tiledesk - All-in-one customer engagement platform from lead-gen to post-sales, from WhatsApp to your website. With omni-channel live agents and AI-powered chatbots (alternative to Intercom, Zendesk, Tawk.to and Tidio). (Source Code) MIT Docker/K8S
  • Tinode - Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots. (Demo, Source Code, Clients) GPL-3.0 Go
  • Tox - Distributed, secure messenger with audio and video chat capabilities. (Source Code) GPL-3.0 C
  • Typebot - Conversational app builder (alternative to Typeform or Landbot). (Source Code) AGPL-3.0 Docker
  • WBO - Web Whiteboard to collaborate in real-time on schemas, drawings, and notes. (Demo) AGPL-3.0 Nodejs/Docker
  • Yopass - Secure sharing of secrets, passwords and files. (Demo) Apache-2.0 Go/Docker
  • Zulip - Zulip is a powerful, open source group chat application. (Source Code) Apache-2.0 Python

Communication - Email - Complete Solutions

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Simple deployment of E-mail servers, e.g. for inexperienced or impatient admins.

  • AnonAddy - Open source email forwarding service for creating aliases. (Source Code) MIT PHP/Docker
  • 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
  • docker-mailserver - Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database. (Source Code) MIT Docker
  • 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
  • emailwiz - Luke Smith's bash script to completely automate the setup of a Postfix/Dovecot/SpamAssassin/OpenDKIM server on debian. GPL-3.0 Shell
  • 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. GPL-3.0 Shell
  • Inboxen - Inboxen is a service that provides you with an infinite number of unique inboxes. (Source Code) GPL-3.0 Python
  • iRedMail - Full-featured mail server solution based on Postfix and Dovecot. (Source Code) GPL-3.0 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. GPL-3.0 Go
  • Mail-in-a-Box - Turns any Ubuntu server into a fully functional mail server with one command. (Source Code) CC0-1.0 Shell
  • Mailcow - Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration. (Source Code) GPL-2.0 Docker/PHP
  • Mailu - Mailu is a simple yet full-featured mail server as a set of Docker images. (Source Code) MIT Docker/Python
  • Modoboa - Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface. (Source Code) ISC Python
  • Mox - Complete e-mail solution with IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering, Internationalization (IDNA), automatic TLS with ACME and Let's Encrypt, account autoconfiguration, and webmail. (Source Code) MIT Go
  • Postal - A complete and fully featured mail server for use by websites & web servers. (Source Code) MIT Docker/Ruby
  • Simple NixOS Mailserver - Complete mailserver solution leveraging the Nix Ecosystem. GPL-3.0 Nix
  • SimpleLogin - Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps. (Source Code) MIT Docker/Python
  • Stalwart Mail Server - All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features. (Source Code) AGPL-3.0 Rust/Docker
  • wildduck - Scalable no-SPOF IMAP/POP3 mail server. (Source Code) EUPL-1.2 Nodejs/Docker

Communication - Email - Mail Delivery Agents

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Mail Delivery Agents (MDAs) - IMAP/POP3 server software.

  • Cyrus IMAP - Email (IMAP/POP3), contacts and calendar server. (Source Code) BSD-3-Clause-Attribution C
  • Dovecot - IMAP and POP3 server written primarily with security in mind. (Source Code) MIT/LGPL-2.1 C/deb
  • Piler - Feature-rich email archiving solution. (Source Code) GPL-3.0 C
  • Stalwart JMAP - JMAP and IMAP server designed to be secure, fast, robust and scalable. (Source Code) AGPL-3.0 Rust/Docker

Communication - Email - Mail Transfer Agents

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Mail Transfer Agents (MTAs) - SMTP servers.

  • chasquid - SMTP (email) server with a focus on simplicity, security, and ease of operation. (Source Code) Apache-2.0 Go
  • 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
  • DragonFly - A small MTA for home and office use. Works on Linux and FreeBSD. BSD-3-Clause C
  • EmailRelay - A small and easy to configure SMTP and POP3 server for Windows and Linux. (Source Code) GPL-3.0 C++
  • Exim - Message transfer agent (MTA) developed at the University of Cambridge. (Source Code) GPL-3.0 C/deb
  • Haraka - High-performance, pluginable SMTP server written in Javascript. (Source Code) MIT Nodejs
  • MailCatcher - Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development. (Source Code) MIT Ruby
  • OpenSMTPD - Secure SMTP server implementation from the OpenBSD project. (Source Code) ISC C/deb
  • OpenTrashmail - Complete trashmail solution that exposes an SMTP server and has a web interface to manage received emails. Works with multiple and wildcard domains and is fully file based (no database needed). Includes RSS feeds and JSON API. Apache-2.0 Python/PHP/Docker
  • Postfix - Fast, easy to administer, and secure Sendmail replacement. IPL-1.0 C/deb
  • Sendmail - Message transfer agent (MTA). Sendmail C/deb
  • Slimta - Mail Transfer Library built on Python. (Source Code) MIT Python
  • Stalwart SMTP - Modern SMTP server designed with a focus on security, speed, and extensive configurability. (Source Code) AGPL-3.0 Rust

Communication - Email - Mailing Lists and Newsletters

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Mailing list servers and mass mailing software - one message to many recipients.

  • Dada Mail - Web-based list management system that can be used for announcement lists and/or discussion lists. (Source Code) GPL-2.0 Perl
  • HyperKitty - Open source Django application to provide a web interface to access GNU Mailman v3 archives. (Demo, Source Code) GPL-3.0 Python
  • Keila - Self-hosted reliable and easy-to-use newsletter tool (alternative to Mailchimp or Sendinblue). (Demo, Source Code) AGPL-3.0 Docker
  • Listmonk - High performance, self-hosted newsletter and mailing list manager with a modern dashboard. (Source Code) AGPL-3.0 Go/Docker
  • Mailman - The Gnu mailing list server. GPL-3.0 Python
  • Mautic - Mautic is marketing automation software (email, social and more). (Source Code) GPL-3.0 PHP
  • phpList - Newsletter and email marketing with advanced management of subscribers, bounces, and plugins. (Source Code) AGPL-3.0 PHP
  • Postorius - Web user interface to access GNU Mailman. (Source Code) GPL-3.0 Python
  • Schleuder - GPG-enabled mailing list manager with resending-capabilities. (Source Code) GPL-3.0 Ruby
  • Sympa - Mailing list manager. (Source Code) GPL-2.0 Perl

Communication - Email - Webmail Clients

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Webmail clients.

Communication - IRC

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IRC communication software.

  • Convos - Always online web IRC client. (Demo, Source Code) Artistic-2.0 Perl/Docker
  • Ergo - Modern IRCv3 server written in Go, combining the features of an ircd, a services framework, and a bouncer. (Source Code) MIT Go/Docker
  • Glowing Bear - A web frontend for WeeChat. (Demo) GPL-3.0 Nodejs
  • InspIRCd - Modular IRC server written in C++ for Linux, BSD, Windows, and macOS. (Source Code) GPL-2.0 C++/Docker
  • Kiwi IRC - Responsive web IRC client with theming support. (Demo, Source Code) Apache-2.0 Nodejs
  • ngircd - Free, portable and lightweight Internet Relay Chat server for small or private networks. (Source Code) GPL-2.0 C/deb
  • 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++
  • Robust IRC - RobustIRC is IRC without netsplits. Distributed IRC server, based on RobustSession protocol. (Source Code) BSD-3-Clause Go
  • The Lounge - Self-hosted web IRC client. (Demo, Source Code) MIT Nodejs/Docker
  • UnrealIRCd - Modular, advanced and highly configurable IRC server written in C for Linux, BSD, Windows, and macOS. (Source Code) GPL-2.0 C
  • Weechat - Fast, light and extensible chat client. (Source Code) GPL-3.0 C/Docker/deb
  • ZNC - Advanced IRC bouncer. (Source Code) Apache-2.0 C++/deb

Communication - SIP

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SIP/IPBX telephony software.

  • Asterisk - Easy to use but advanced IP PBX system, VoIP gateway and conference server. (Source Code) GPL-2.0 C/deb
  • ASTPP - VoIP Billing Solution for Freeswitch. It supports prepaid and postpaid billing with call rating and credit control. It also provides many other features. (Source Code) AGPL-3.0 PHP
  • Eqivo - Eqivo implements an API layer on top of FreeSWITCH facilitating integration between web applications and voice/video-enabled endpoints such as traditional phone lines (PSTN), VoIP phones, webRTC clients etc. (Source Code) MIT Docker/PHP
  • Flexisip - A complete, modular and scalable SIP server, includes a push gateway, to deliver SIP incoming calls or text messages on mobile device platforms where push notifications are required to receive information when the app is not active in the foreground. (Source Code) AGPL-3.0 C/Docker
  • Freepbx - Web-based open source GUI that controls and manages Asterisk. (Source Code) GPL-2.0 PHP
  • FreeSWITCH - Scalable open source cross-platform telephony platform. (Source Code) MPL-2.0 C
  • FusionPBX - Open source project that provides a customizable and flexible web interface to the very powerful and highly scalable multi-platform voice switch called FreeSWITCH. (Source Code) MPL-1.1 PHP
  • Kamailio - Modular SIP server (registrar/proxy/router/etc). (Source Code) GPL-2.0 C/deb
  • openSIPS - OpenSIPS is an Open Source SIP proxy/server for voice, video, IM, presence and any other SIP extensions. (Source Code) GPL-2.0 C
  • Routr - A lightweight sip proxy, location server, and registrar for a reliable and scalable SIP infrastructure. (Source Code) MIT Docker/K8S
  • SIP3 - VoIP troubleshooting and monitoring platform. (Demo, Source Code) Apache-2.0 Java
  • SIPCAPTURE Homer - Troubleshooting and monitoring VoIP calls. (Source Code) AGPL-3.0 Nodejs/Go/Docker
  • Wazo - Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API. (Source Code) GPL-3.0 Python
  • Yeti-Switch - Transit class4 softswitch(SBC) with integrated billing and routing engine and REST API. (Demo, Source Code) GPL-2.0 C++/Ruby

Communication - Social Networks and Forums

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Social Networking and Forum software.

  • Akkoma - Federated microblogging server with Mastodon, GNU social, and ActivityPub compatibility. (Source Code) AGPL-3.0 Elixir/Docker
  • Anahita - Open Source Social Networking Framework and Platform. (Source Code) GPL-3.0 PHP
  • Answer - An open-source knowledge-based community software. You can use it to quickly build your Q&A community for product technical support, customer support, user communication, and more. (Source Code) Apache-2.0 Docker/Go
  • Artalk - A self-hosted comment system built in Golang, providing a lightweight and highly customizable solution for adding comments to your website. (Source Code) MIT Go/Docker
  • AsmBB - A fast, SQLite-powered forum engine written in ASM. (Source Code) EUPL-1.2 Assembly
  • 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
  • Chirpy - Chirpy is an open-source, privacy-friendly and customizable Disqus (comment system) alternate. (Demo, Source Code) AGPL-3.0 Docker/Nodejs
  • Coral - A better commenting experience from Vox Media. (Source Code) Apache-2.0 Docker/Nodejs
  • diaspora* - Distributed social networking server. (Source Code) AGPL-3.0 Ruby
  • Discourse - Advanced forum / community solution based on Ruby and JS. (Demo, Source Code) GPL-2.0 Docker
  • Elgg - Powerful open source social networking engine. (Source Code) GPL-2.0 PHP
  • Enigma 1/2 BBS - Enigma 1/2 is a modern, multi-platform BBS engine with unlimited "callers" and legacy DOS door game support. (Demo, Source Code) BSD-2-Clause Shell/Docker/Nodejs
  • Flarum - Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again. (Source Code) MIT PHP
  • Friendica - Social Communication Server. (Source Code) AGPL-3.0 PHP
  • GoToSocial - ActivityPub federated social network server implementing the Mastodon client API. AGPL-3.0 Docker/Go
  • Hatsu - Bridge that interacts with Fediverse on behalf of your static site. (Source Code) AGPL-3.0 Docker/Rust
  • Hubzilla - Decentralized identity, privacy, publishing, sharing, cloud storage, and communications/social platform. (Source Code) MIT PHP
  • HumHub - Flexible kit for private social networks. (Source Code) AGPL-3.0 PHP
  • Isso - Lightweight commenting server written in Python and Javascript. It aims to be a drop-in replacement for Disqus. (Source Code) MIT Python/Docker
  • kbin - Federated content aggregator and microblogging platform. (Source Code) AGPL-3.0 PHP/Nodejs/Docker
  • Lemmy - A link aggregator / reddit clone for the fediverse (alternative to Reddit). (Source Code) AGPL-3.0 Docker/Rust
  • Libreddit ⚠ - Private front-end for Reddit written in Rust. AGPL-3.0 Rust
  • Loomio - Loomio is a collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them. (Source Code) AGPL-3.0 Docker
  • Mastodon - Federated microblogging server. (Source Code, Clients) AGPL-3.0 Ruby
  • Misago - Misago is fully featured modern forum application that is fast, scalable and responsive. (Source Code) GPL-2.0 Docker
  • Misskey - Decentralized app-like microblogging server/SNS for the Fediverse, using the ActivityPub protocol like GNU social and Mastodon. (Source Code) AGPL-3.0 Nodejs/Docker
  • Movim - Modern, federated social network based on XMPP, with a fully featured group-chat, subscriptions and microblogging. (Source Code) AGPL-3.0 PHP/Docker
  • MyBB - Free, extensible forum software package. (Source Code) LGPL-3.0 PHP
  • Nitter ⚠ - An alternative front end to twitter. (Source Code) AGPL-3.0 Nim/Docker
  • NodeBB - Forum software built for the modern web. (Source Code) GPL-3.0 Nodejs
  • Orange Forum - Orange Forum is an easy to deploy forum that has minimal dependencies and uses very little javascript. (Source Code) BSD-3-Clause Go
  • OSSN - Open Source Social Network (OSSN) is a social networking software written in PHP. It 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) GPL-2.0 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
  • PixelFed - Pixelfed is an open-source, federated platform alternate to Instagram. (Source Code) AGPL-3.0 PHP
  • Pleroma - Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible. (Source Code) AGPL-3.0 Elixir
  • qpixel - Q&A-based community knowledge-sharing software. (Source Code) AGPL-3.0 Ruby
  • Redlib ⚠ - An alternative private front-end to Reddit, with its origins in Libreddit. AGPL-3.0 Rust
  • remark42 - A lightweight and simple comment engine, which doesn't spy on users. It can be embedded into blogs, articles or any other place where readers add comments. (Demo, Source Code) MIT Docker/Go
  • Retrospring - A free, open-source social network following the Q/A (question and answer) principle of sites like Formspring, ask.fm or CuriousCat. (Demo) AGPL-3.0 Ruby/Nodejs
  • Scoold - Stack Overflow in a JAR. An enterprise-ready Q&A platform with full-text search, SAML, LDAP integration and social login support. (Demo, Source Code) Apache-2.0 Java/Docker/K8S
  • 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
  • Socialhome - Federated and decentralized profile builder and social network engine. (Demo, Source Code) AGPL-3.0 Docker/Python
  • Takahē - Federated microblogging server. Mastodon, & ActivityPub compatible. (Source Code) BSD-3-Clause Docker
  • Talkyard - Create a community, where your users can suggest ideas and get questions answered. And have friendly open-ended discussions and chat (Slack/StackOverflow/Discourse/Reddit/Disqus hybrid). (Demo, Source Code) AGPL-3.0 Docker/Scala
  • yarn.social - Self-Hosted, Twitter™-like Decentralised micro-logging platform. No ads, no tracking, your content, your data. (Source Code) MIT Go
  • Zusam - Free and open-source way to self-host private forums for groups of friends or family. (Demo) AGPL-3.0 PHP

Communication - Video Conferencing

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Video/Web Conferencing tools and software.

Related: Conference Management

  • 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
  • Galene - Galène (or Galene) is a videoconference server (an “SFU”) that is easy to deploy and that requires moderate server resources. (Source Code) MIT Go
  • Janus - General-purpose, lightweight, minimalist WebRTC Server. (Demo, Source Code) GPL-3.0 C
  • Jitsi Meet - Jitsi Meet is an OpenSource (MIT) WebRTC Javascript application that uses Jitsi Videobridge to provide high quality, scalable video conferences. (Demo, Source Code) Apache-2.0 Nodejs/Docker/deb
  • Jitsi Video Bridge - WebRTC compatible Selective Forwarding Unit (SFU) that allows for multiuser video communication. (Source Code) Apache-2.0 Java/deb
  • MiroTalk C2C - Real-time cam-2-cam video calls & screen sharing, end-to-end encrypted, to embed in any website with a simple iframe. (Source Code) MIT Nodejs/Docker
  • MiroTalk P2P - Simple, secure, fast real-time video conferences up to 4k and 60fps, compatible with all browsers and platforms. (Demo, Source Code) AGPL-3.0 Nodejs/Docker
  • MiroTalk SFU - Simple, secure, scalable real-time video conferences up to 4k, compatible with all browsers and platforms. (Demo, Source Code) AGPL-3.0 Nodejs/Docker
  • plugNmeet - Scalable, High Performance, Open source web conferencing system. (Demo, Source Code) MIT Docker/Go

Communication - XMPP - Servers

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Extensible Messaging and Presence Protocol servers.

Communication - XMPP - Web Clients

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Extensible Messaging and Presence Protocol Web clients/interfaces.

  • Converse.js - Free and open-source XMPP chat client in your browser. (Source Code) MPL-2.0 Javascript
  • JSXC - Real-time XMPP web chat application with video calls, file transfer and encrypted communication. There are also versions for Nextcloud/Owncloud and SOGo. (Source Code) MIT Javascript
  • Libervia - Web frontend from Salut à Toi. AGPL-3.0 Python
  • Salut à Toi - Multipurpose, multi frontend, libre and decentralized communication tool. (Source Code) AGPL-3.0 Python

Community-Supported Agriculture (CSA)

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Management and administration tools for community supported agriculture and food cooperatives.

Related: E-commerce

  • ACP Admin - CSA administration. Manage members, subscriptions, deliveries, drop-off locations, member participation, invoices and emails (documentation in French). (Source Code) MIT Ruby
  • E-Label - Solution for electronic labels, with QR Codes, on wine bottles sold within the European Union. (Source Code) MIT Docker
  • FoodCoopShop - User-friendly open source software for food-coops. (Source Code) AGPL-3.0 PHP/Docker
  • Foodsoft - Web-based software to manage a non-profit food coop (product catalog, ordering, accounting, job scheduling). (