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Mastodon

Your self-hosted, globally interconnected microblogging community

Updated May 16, 2025
By Eugen Rochko
Open Source Free Real World Example
Price: $0

Description

Mastodon is a free, open-source social network server based on ActivityPub where users can follow friends and discover new ones. On Mastodon, users can publish anything they want: links, pictures, text, and video. All Mastodon servers are interoperable as a federated network (users on one server can seamlessly communicate with users from another one, including non-Mastodon software that implements ActivityPub!)

Tech stack
  • Ruby on Rails powers the REST API and other web pages
  • React.js and Redux are used for the dynamic parts of the interface
  • Node.js powers the streaming API

Requirements
  • PostgreSQL 12+
  • Redis 4+
  • Ruby 3.2+
  • Node.js 18+

The repository includes deployment configurations for Docker and docker-compose as well as specific platforms like Heroku, and Scalingo.
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