Best Self-hosted Community & Social tools in 2026

Open-source web application for complex organization hierarchies: members, events, courses, mailings and payments. Plugin-based, Rails-backed, community-driven.

AGPL-3.0Actively maintained

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WildApricot+12

Open-source PHP membership and user management system for clubs, associations and organizations with roles, events, media, documents and exports.

GPL-2.0Actively maintained

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WildApricot+14

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

GPL-3.0Actively maintained

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Evite+12

Federated, open-source short-video platform for communities and creators with ActivityPub federation, API access, and creator-focused features.

AGPL-3.0Actively maintained

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PeerTube+1

QPixel is a Ruby on Rails Q&A platform powering Codidact, supporting multiple communities, categories, Markdown content, voting and activity-based privileges.

AGPL-3.0Actively maintained

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Stack Overflow+5

Lightweight single-user ActivityPub server using SQLite; supports rich text, Markdown, images, polls, threading, translations and MCP.

AGPL-3.0Actively maintained

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Mastodon (mastodon.social)+5

Mbin is a federated content aggregator offering voting, discussion and microblogging via ActivityPub. A community-focused fork of kbin, built with PHP and Symfony.

AGPL-3.0Actively maintained

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Reddit+19

Self-hosted web app for family wishlists to share gift ideas, avoid duplicate gifts, supports SSO, CouchDB/PouchDB storage and Docker deployment.

AGPL-3.0Actively maintained

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Elfster+3

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

AGPL-3.0Actively maintained

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Google Forms+12

AnonymousOverflow is a lightweight Go service that proxies StackOverflow questions into a simplified, privacy-preserving, read-only interface served as server-side rendered HTML.

MPL-2.0Actively maintained

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Stack Overflow+1

Web-based global administration and ban management system for Valve Source engine games, with a PHP web panel, SourceMod plugins, and MySQL/MariaDB backend.

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

MPL-2.0Actively maintained

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Discourse+14

Lurker is a self-hosted, read-only Reddit client with a mobile-first UI, minimal JavaScript, sqlite storage and account/invite subscription management.

MITSlowing down

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Reddit+2

Django-based application to create date/time polls and general surveys for scheduling meetings, with anonymous voting, private events, and LDAP support.

GPL-3.0Actively maintained

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Doodle+13

Open-source mailing list manager for automating subscriptions, moderation, archives and message distribution with web, CLI and SOAP interfaces for large lists.

GPL-2.0Actively maintained

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Groups.io

Accessible, rule-based spam protection for web forms that inspects form fields, stores minimal data encrypted, and auto-deletes entries after 14 days.

MITActively maintained

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hCaptcha+4

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

Apache-2.0Slowing down

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Headway+19

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 replies via feeds.

AGPL-3.0Actively maintained

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Mastodon (mastodon.social)+4

A TypeScript Node.js crossposter that synchronizes Twitter tweets to Mastodon and Bluesky; distributed as a Docker image. Project is archived.

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

Actively maintained

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Reddit+4

Lightweight federated social network served over the Gemini protocol; implements ActivityPub, stores data in a single SQLite file, and is written in Go.

Apache-2.0Actively maintained

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Mastodon (mastodon.social)+6

A compact, privacy-minded read-only frontend for Reddit with mobile-friendly UI, RSS support, and easy self-hosting using Python and ASGI.

MITActively maintained

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Reddit+2

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

Actively maintained

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Private Captcha+4

Open-source event listing and aggregator built on Laravel. Provides iCal feeds, tags, RSVP, photos, and multiple authentication methods for community and organization event sites.

MITActively maintained

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Meetup+6

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

AGPL-3.0Actively maintained

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Civica Modern.Gov+9

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

AGPL-3.0Actively maintained

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Raindrop.io+13

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

AGPL-3.0Actively maintained

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Miro+7

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.

AGPL-3.0Slowing down

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Whova+16

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

MITActively maintained

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Devpost+3

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