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Claire e2844b7e58
Change number_to_human calls to always use 3-digits precision (#16469)
3 years ago
.circleci Add Actions for check i18n (#16285) 3 years ago
.github Replace to issue form (#16429) 3 years ago
app Change number_to_human calls to always use 3-digits precision (#16469) 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 Fix compression-webpack-plugin configuration (#16356) 3 years ago
db Fix missing on_delete: :cascade for canonical_email_blocks foreign key (#16448) 3 years ago
dist Preload for long-running Ruby (#16462) 3 years ago
lib Update emoji codepoint mappings to v13.1 (#16352) 3 years ago
log Initial commit 9 years ago
nanobox Resync Nanobox files with the 2.9.0 release (#11083) 5 years ago
public Add assets from Twemoji 13.1.0 (#16345) 3 years ago
spec Add tests for BootstrapTimelineService (#16476) 3 years ago
streaming Fix "cb is not a function" error in streaming API server (#16134) 3 years ago
vendor Increase files checked by ESLint (#9705) 6 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 Ignore git related files from docker build (#16282) 3 years ago
.editorconfig Add final newline to locale files (#2890) 7 years ago
.env.nanobox Fix sample SAML_ACS_URL, SAML_ISSUER (#12669) 5 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) 5 years ago
.env.vagrant Add a default DB_HOST to .env.vagrant for enable the streaming (#14030) 4 years ago
.eslintignore Increase files checked by ESLint (#9705) 6 years ago
.eslintrc.js Enable promise/catch-or-return allowFinally (#14289) 4 years ago
.foreman Replace sprockets/browserify with Webpack (#2617) 7 years ago
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) 7 years ago
.gitignore helm: pin versions, commit lockfile (#15749) 3 years ago
.haml-lint.yml Added haml-lint and fix warnings (#2773) 7 years ago
.nanoignore Remove Storybook (#4397) 7 years ago
.nvmrc Upgrade .nvmrc to Node.js 12 (#12906) 5 years ago
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) 7 years ago
.rspec Adding a Mention model, test stubs 9 years ago
.rubocop.yml Fix rubocop config and warnings (#15503) 4 years ago
.ruby-version Revert default Ruby version to 2.7.2 (#16154) 3 years ago
.sass-lint.yml Fix sass-lint config (#10982) 5 years ago
.slugignore Remove Storybook (#4397) 7 years ago
.yarnclean Replace from scss-lint to sass-lint (#10958) 5 years ago Bump version to 3.4.0 (#16239) 3 years ago
Aptfile Use libvpx >= 5 (#15591) 4 years ago Bump version to 3.4.1 (#16350) 3 years ago Add code of conduct from GitHub generator (#5674) 7 years ago Add pull request title recommendations to (#16247) 3 years ago
Capfile remove capistrano/faster_assets from Capfile (#2737) 7 years ago
Dockerfile Revert default Ruby version to 2.7.2 (#16154) 3 years ago
Gemfile Bump rails from to 6.1.4 (#16436) 3 years ago
Gemfile.lock Bump rails from to 6.1.4 (#16436) 3 years ago
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 8 years ago
Procfile fix: make Procfile compatible with herokuish (#12685) 4 years ago Set RAILS_ENV in (#15502) 4 years ago Change IRC channel to LiberaChat in README (#16279) 3 years ago
Rakefile Initial commit 9 years ago Fix security policy (#16248) 3 years ago
Vagrantfile updated node version in Vagrantfile (#16230) 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) 4 years ago Fix rubocop issues, introduce usage of frozen literal to improve performance 8 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 eslint from 7.29.0 to 7.30.0 (#16461) 3 years ago
postcss.config.js Increase files checked by ESLint (#9705) 6 years ago
priv-config TOR federation (#7875) 6 years ago
scalingo.json Remove deprecated config from Heroku and Scalingo (#11925) 5 years ago
yarn.lock Bump eslint from 7.29.0 to 7.30.0 (#16461) 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 12+

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