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abcang b5ad787ebf
Fix rubocop warning (#16214)
3 years ago
.circleci Add Ruby 3.0 support (#16046) 3 years ago
.github Apply label automatically when issue creation from template (#15154) 3 years ago
app Fix rubocop warning (#16214) 3 years ago
bin Update Mastodon to Rails 6.1 (#15910) 3 years ago
chart helm: upgrade elasticsearch chart to 14 (#15767) 3 years ago
config Ignore brakeman false positive warning (#16213) 3 years ago
db Remove PubSubHubbub-related columns from accounts table (#16170) 3 years ago
dist templates/systemd/mastodon: optimize SystemCallFilters (#16127) 3 years ago
lib Bump version to 3.4.0rc2 (#16206) 3 years ago
public Add border to 🚲 emoji (#16035) 3 years ago
spec Fix blocking someone not clearing up list feeds (#16205) 3 years ago
streaming Fix "cb is not a function" error in streaming API server (#16134) 3 years ago
.buildpacks Remove nodejs buildpack from buildpacks (#14364) 4 years ago
.codeclimate.yml Bump rubocop from 1.8.1 to 1.9.1 (#15677) 3 years ago
.deepsource.toml Update .deepsource.toml (#15753) 3 years ago
.dockerignore dockerignore helm chart (#15747) 3 years ago
.env.nanobox Fix sample SAML_ACS_URL, SAML_ISSUER (#12669) 4 years ago
.env.production.sample Fix the wrong full documentation link (#14293) 4 years ago
.env.test Bump webpacker from 4.0.7 to 4.2.0 (#12416) 4 years ago
.env.vagrant Add a default DB_HOST to .env.vagrant for enable the streaming (#14030) 4 years ago
.eslintrc.js Enable promise/catch-or-return allowFinally (#14289) 4 years ago
.gitignore helm: pin versions, commit lockfile (#15749) 3 years ago
.nvmrc Upgrade .nvmrc to Node.js 12 (#12906) 4 years ago
.rubocop.yml Fix rubocop config and warnings (#15503) 3 years ago
.ruby-version Revert default Ruby version to 2.7.2 (#16154) 3 years ago
.yarnclean Bump version to 3.3.0 (#15433) 3 years ago
Aptfile Use libvpx >= 5 (#15591) 3 years ago Bump version to 3.4.0rc2 (#16206) 3 years ago Fix link to documentation repo (#15620) 3 years ago
Dockerfile Revert default Ruby version to 2.7.2 (#16154) 3 years ago
Gemfile Bump rubocop from 1.13.0 to 1.14.0 (#16192) 3 years ago
Gemfile.lock Bump brakeman from 5.0.0 to 5.0.1 (#16146) 3 years ago
Procfile fix: make Procfile compatible with herokuish (#12685) 4 years ago Set RAILS_ENV in (#15502) 3 years ago Update copyright year (#16003) 3 years ago
Rakefile Add Security Policy (#13946) 4 years ago
Vagrantfile Fixed issue with .env.vagrant not setting RAILS_ENV variable (#15709) 3 years ago
app.json Stop using heroku-buildpack-nodejs (#14341) 4 years ago
babel.config.js Remove dependency for @babel/plugin-proposal-class-properties (#16155) 3 years ago
boxfile.yml Fix to isolate the sidekiq process that runs the scheduler job (#15314) 3 years ago
crowdin.yml Update Crowdin configuration file 5 years ago
docker-compose.yml Update Elasticsearch from 6.1 to 6.8 in docker-compose.yml (Fix glitch-soc#1348) (#14016) 4 years ago
ide-helper.js Add JS IDE helper (#13012) 4 years ago
package.json Bump glob from 7.1.6 to 7.1.7 (#16204) 3 years ago
scalingo.json Remove deprecated config from Heroku and Scalingo (#11925) 5 years ago
yarn.lock Bump glob from 7.1.6 to 7.1.7 (#16204) 3 years ago


GitHub release Build Status Code Climate Crowdin Docker Pulls

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, 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)!

Click below to learn more in a video:




No vendor lock-in: Fully interoperable with any conforming platform

It doesn't have to be Mastodon, whatever implements ActivityPub is part of the social network! Learn more

Real-time, chronological timeline updates

See the updates of people you're following appear in real-time in the UI via WebSockets. There's a firehose view as well!

Media attachments like images and short videos

Upload and view images and WebM/MP4 videos attached to the updates. Videos with no audio track are treated like GIFs; normal videos are looped - like vines!

Safety and moderation tools

Private posts, locked accounts, phrase filtering, muting, blocking and all sorts of other features, along with a reporting and moderation system. Learn more

OAuth2 and a straightforward REST API

Mastodon acts as an OAuth2 provider so 3rd party apps can use the REST and Streaming APIs, resulting in a rich app ecosystem with a lot of choices!


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


  • PostgreSQL 9.5+
  • Redis 4+
  • Ruby 2.5+
  • Node.js 10.13+

The repository includes deployment configurations for Docker and docker-compose, but also a few specific platforms like Heroku, Scalingo, and Nanobox. The stand-alone installation guide is available in the documentation.

A Vagrant configuration is included for development purposes.


Mastodon is free, open-source software licensed under AGPLv3.

You can open issues for bugs you've found or features you think are missing. You can also submit pull requests to this repository, or submit translations using Crowdin. To get started, take a look at If your contributions are accepted into Mastodon, you can request to be paid through our OpenCollective.

IRC channel: #mastodon on


Copyright (C) 2016-2021 Eugen Rochko & other Mastodon contributors (see

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see