The code powering
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Matt Baer 16f6e3e351 Merge branch 'master' of 3 anni fa
.circleci Fix Gemfile.lock (#12995) 3 anni fa
.dependabot Change dependabot update schedule from live to weekly (#10949) 4 anni fa
.github Add config for issue template (#12306) 4 anni fa
app Merge branch 'master' of 3 anni fa
bin Bump webpacker from 3.5.5 to 4.0.2 (#10277) 4 anni fa
config Merge branch 'master' of 3 anni fa
db Fix interactive delays in database migrations with no TTY (#12969) 3 anni fa
dist Add TLS v1.3 support (#11603) 4 anni fa
lib Fix installation failing when Redis password contains special characters (#13156) 3 anni fa
log Initial commit 7 anni fa
nanobox Resync Nanobox files with the 2.9.0 release (#11083) 4 anni fa
public Merge branch 'master' of 3 anni fa
spec Fix leak of arbitrary statuses through unfavourite action in REST API (#13161) 3 anni fa
streaming minor server-sent events fixes (#12945) 3 anni fa
vendor Increase files checked by ESLint (#9705) 4 anni fa
.buildpacks Add ffmpeg buildpack for scalingo (#8500) 5 anni fa
.codeclimate.yml Update ESLint and RuboCop in Code Climate (#12534) 4 anni fa
.dockerignore Add .bundle to .dockerignore (#7895) 5 anni fa
.editorconfig Add final newline to locale files (#2890) 6 anni fa
.env.nanobox Fix sample SAML_ACS_URL, SAML_ISSUER (#12669) 3 anni fa
.env.production.sample Document AUTHORIZED_FETCH mode and WHITELIST_MODE (#12856) 3 anni fa
.env.test Bump webpacker from 4.0.7 to 4.2.0 (#12416) 4 anni fa
.env.vagrant fix vagrant connection error (#12180) 4 anni fa
.eslintignore Increase files checked by ESLint (#9705) 4 anni fa
.eslintrc.js Refactor icons in web UI to use Icon component (#9951) 4 anni fa
.foreman Replace sprockets/browserify with Webpack (#2617) 6 anni fa
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) 6 anni fa
.gitignore Use eslint cache (#12668) 3 anni fa
.haml-lint.yml Added haml-lint and fix warnings (#2773) 6 anni fa
.nanoignore Remove Storybook (#4397) 6 anni fa
.nvmrc Upgrade .nvmrc to Node.js 12 (#12906) 3 anni fa
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) 6 anni fa
.rspec Adding a Mention model, test stubs 7 anni fa
.rubocop.yml Update ESLint and RuboCop in Code Climate (#12534) 4 anni fa
.ruby-version Use Ruby 2.6.5 (#12049) 4 anni fa
.sass-lint.yml Fix sass-lint config (#10982) 4 anni fa
.slugignore Remove Storybook (#4397) 6 anni fa
.yarnclean Replace from scss-lint to sass-lint (#10958) 4 anni fa Update (#12096) 4 anni fa
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) 5 anni fa Bump version to 3.1.2 (#13162) 3 anni fa Add code of conduct from GitHub generator (#5674) 6 anni fa Edit (#12401) 4 anni fa
Capfile remove capistrano/faster_assets from Capfile (#2737) 6 anni fa
Dockerfile Fix non-x64 architectures not being able to build Docker image because of hardcoded Node.js architecture (#13081) 3 anni fa
Gemfile Bump rack from 2.1.2 to 2.2.2 (#13108) 3 anni fa
Gemfile.lock Fix elasticsearch-api and faraday incompatibilities (#13166) 3 anni fa
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 7 anni fa
Procfile Bind servers to in Procfile (#11378) 4 anni fa Fix Procfile on OS X (#6748) 5 anni fa 2019 -> 2020 (#12867) 3 anni fa
Rakefile Initial commit 7 anni fa
Vagrantfile Fix Node version in Vagrant (#13008) 3 anni fa
app.json Remove deprecated config from Heroku and Scalingo (#11925) 4 anni fa
babel.config.js Remove unnecessary dependencies (#12533) 4 anni fa
boxfile.yml Correct the Nanobox deploy hooks for order and context (#12663) 4 anni fa Fix rubocop issues, introduce usage of frozen literal to improve performance 7 anni fa
crowdin.yml Update Crowdin configuration file 4 anni fa
docker-compose.yml Merge branch 'master' of 3 anni fa
package.json Bump react-redux from 7.1.3 to 7.2.0 (#13141) 3 anni fa
postcss.config.js Increase files checked by ESLint (#9705) 4 anni fa
priv-config TOR federation (#7875) 5 anni fa
scalingo.json Remove deprecated config from Heroku and Scalingo (#11925) 4 anni fa
yarn.lock Bump react-redux from 7.1.3 to 7.2.0 (#13141) 3 anni fa


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
  • Ruby 2.4+
  • 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 Weblate. 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) 2016-2020 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