Best Self-hosted Community & Social tools in 2026
109 self-hosted open source alternatives in this category
109 services found
QPixel
Rails-based community Q&A and knowledge-sharing platform
QPixel is a Ruby on Rails Q&A platform powering Codidact, supporting multiple communities, categories, Markdown content, voting and activity-based privileges.
Hollo
Federated single-user microblogging server with Mastodon API
Headless federated microblogging server for single users that implements ActivityPub and Mastodon-compatible REST APIs for use with Mastodon clients.


Admidio
Membership and user management system for organizations
Open-source PHP membership and user management system for clubs, associations and organizations with roles, events, media, documents and exports.
Ktistec
Single-user ActivityPub server for small trusted communities
Lightweight single-user ActivityPub server using SQLite; supports rich text, Markdown, images, polls, threading, translations and MCP.


Gathio
Privacy-first, federated platform for shareable event pages
Create self-destructing, shareable event pages without registration. Privacy-focused, federated event hosting for ad-hoc and time-limited events.

Christmas Community
Web app for shared family wishlists and gift tracking
Self-hosted web app for family wishlists to share gift ideas, avoid duplicate gifts, supports SSO, CouchDB/PouchDB storage and Docker deployment.
Mbin
Federated content aggregator and discussion/microblogging platform
Mbin is a federated content aggregator offering voting, discussion and microblogging via ActivityPub. A community-focused fork of kbin, built with PHP and Symfony.


Nextcloud Forms
Simple forms and survey builder for Nextcloud
A lightweight Nextcloud app to create surveys and forms, visualize responses, and export results while keeping data on your Nextcloud instance.


AnonymousOverflow
Privacy-focused reader for StackOverflow pages
AnonymousOverflow is a lightweight Go service that proxies StackOverflow questions into a simplified, privacy-preserving, read-only interface served as server-side render...

SourceBans++
Admin, ban and communication management for Source engine servers
Web-based global administration and ban management system for Valve Source engine games, with a PHP web panel, SourceMod plugins, and MySQL/MariaDB backend.
Bitpoll
Web app for scheduling meetings and running polls
Django-based application to create date/time polls and general surveys for scheduling meetings, with anonymous voting, private events, and LDAP support.

Sympa
Open-source mailing list management software
Open-source mailing list manager for automating subscriptions, moderation, archives and message distribution with web, CLI and SOAP interfaces for large lists.
Lurker
Self-hosted, read-only Reddit web client optimized for mobile
Lurker is a self-hosted, read-only Reddit client with a mobile-first UI, minimal JavaScript, sqlite storage and account/invite subscription management.


mosparo
Rule-based form spam protection without CAPTCHAs
Accessible, rule-based spam protection for web forms that inspects form fields, stores minimal data encrypted, and auto-deletes entries after 14 days.


Storyden
Modern, extensible forum, wiki and community platform
A modern forum, wiki, and community hub for discussions, curated lists, and knowledgebases. Extensible, secure platform built with TypeScript and Go.


Touitomamout
Sync tweets from Twitter/X to Mastodon and Bluesky
A TypeScript Node.js crossposter that synchronizes Twitter tweets to Mastodon and Bluesky; distributed as a Docker image. Project is archived.
Loops
Federated short video sharing platform
Federated, open-source short-video platform for communities and creators with ActivityPub federation, API access, and creator-focused features.

BuddyPress
WordPress plugin adding social networking and community features
BuddyPress is a WordPress plugin that adds member profiles, activity streams, groups, messaging, and extensibility to build community and social networking sites.


ShipShipShip
Self-hostable changelog and roadmap platform with voting and newsletters
Modern self-hosted changelog and roadmap app with voting, emoji reactions, kanban roadmap, themeable public changelog, automated newsletters, and a REST API.

Hatsu
Self-hosted ActivityPub bridge to federate static website content
Hatsu is a self-hosted ActivityPub bridge that automates federation for static sites by mapping site users and posts to Fediverse actors, handling follows, posts, and rep...

tootik
Federated text-first social network with a Gemini frontend
Lightweight federated social network served over the Gemini protocol; implements ActivityPub, stores data in a single SQLite file, and is written in Go.


Meetable
Minimal Laravel-based events aggregator and listing platform
Open-source event listing and aggregator built on Laravel. Provides iCal feeds, tags, RSVP, photos, and multiple authentication methods for community and organization eve...
Eddrit
Lightweight alternative frontend for Reddit
A compact, privacy-minded read-only frontend for Reddit with mobile-friendly UI, RSS support, and easy self-hosting using Python and ASGI.

Private Captcha
Privacy-first, self-hosted proof-of-work CAPTCHA service
Privacy-first, GDPR-focused self-hosted Proof-of-Work CAPTCHA for forms and APIs with an adaptive lightweight widget and Postgres/ClickHouse backend.

Antragsgrün
Manage motions, resolutions and amendments for assemblies
Open-source platform to submit, discuss, amend and vote on motions and resolutions; supports speaking lists, roll calls, PDF/CSV exports and SSO integration.

mindwendel
Collaborative brainstorming board with voting and AI idea generation
Self-hosted Phoenix app for anonymous team brainstorming, idea upvoting, labeling, encrypted file attachments, AI-assisted idea generation, exports and live updates.


Betula
Federated single-user bookmark manager with Fediverse support
Single-user self-hosted federated bookmark manager written in Go, using a single SQLite file, with ActivityPub support, web archiving, RSS and tagging.

Dribdat
Open-source challenge board for running data-driven hackathons
Dribdat is a Flask-based, open-source platform for organising hackathons, code sprints and challenge-driven events with project curation, integrations and progress tracki...

Atria
Open-source event management and attendee networking platform
Atria is an AGPL-3.0 open-source platform for managing hybrid events, sessions, sponsors, and real-time attendee networking with chat and discovery tools.

Teikei
Maps community-supported agriculture across Germany, Switzerland and Austria
Web application and API that crowdsources and maps community-supported agriculture (CSA) locations in Germany, Switzerland and Austria; includes admin UI and REST API.