The code powering
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Matt Baer 16f6e3e351 Merge branch 'master' of há 1 ano
.circleci Fix Gemfile.lock (#12995) há 1 ano
.dependabot Change dependabot update schedule from live to weekly (#10949) há 2 anos
.github Add config for issue template (#12306) há 1 ano
app Merge branch 'master' of há 1 ano
bin Bump webpacker from 3.5.5 to 4.0.2 (#10277) há 2 anos
config Merge branch 'master' of há 1 ano
db Fix interactive delays in database migrations with no TTY (#12969) há 1 ano
dist Add TLS v1.3 support (#11603) há 2 anos
lib Fix installation failing when Redis password contains special characters (#13156) há 1 ano
log Initial commit há 5 anos
nanobox Resync Nanobox files with the 2.9.0 release (#11083) há 2 anos
public Merge branch 'master' of há 1 ano
spec Fix leak of arbitrary statuses through unfavourite action in REST API (#13161) há 1 ano
streaming minor server-sent events fixes (#12945) há 1 ano
vendor Increase files checked by ESLint (#9705) há 2 anos
.buildpacks Add ffmpeg buildpack for scalingo (#8500) há 3 anos
.codeclimate.yml Update ESLint and RuboCop in Code Climate (#12534) há 1 ano
.dockerignore Add .bundle to .dockerignore (#7895) há 3 anos
.editorconfig Add final newline to locale files (#2890) há 4 anos
.env.nanobox Fix sample SAML_ACS_URL, SAML_ISSUER (#12669) há 1 ano
.env.production.sample Document AUTHORIZED_FETCH mode and WHITELIST_MODE (#12856) há 1 ano
.env.test Bump webpacker from 4.0.7 to 4.2.0 (#12416) há 1 ano
.env.vagrant fix vagrant connection error (#12180) há 2 anos
.eslintignore Increase files checked by ESLint (#9705) há 2 anos
.eslintrc.js Refactor icons in web UI to use Icon component (#9951) há 2 anos
.foreman Replace sprockets/browserify with Webpack (#2617) há 4 anos
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) há 4 anos
.gitignore Use eslint cache (#12668) há 1 ano
.haml-lint.yml Added haml-lint and fix warnings (#2773) há 4 anos
.nanoignore Remove Storybook (#4397) há 4 anos
.nvmrc Upgrade .nvmrc to Node.js 12 (#12906) há 1 ano
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) há 4 anos
.rspec Adding a Mention model, test stubs há 5 anos
.rubocop.yml Update ESLint and RuboCop in Code Climate (#12534) há 1 ano
.ruby-version Use Ruby 2.6.5 (#12049) há 2 anos
.sass-lint.yml Fix sass-lint config (#10982) há 2 anos
.slugignore Remove Storybook (#4397) há 4 anos
.yarnclean Replace from scss-lint to sass-lint (#10958) há 2 anos Update (#12096) há 2 anos
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) há 3 anos Bump version to 3.1.2 (#13162) há 1 ano Add code of conduct from GitHub generator (#5674) há 3 anos Edit (#12401) há 1 ano
Capfile remove capistrano/faster_assets from Capfile (#2737) há 4 anos
Dockerfile Fix non-x64 architectures not being able to build Docker image because of hardcoded Node.js architecture (#13081) há 1 ano
Gemfile Bump rack from 2.1.2 to 2.2.2 (#13108) há 1 ano
Gemfile.lock Fix elasticsearch-api and faraday incompatibilities (#13166) há 1 ano
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 há 5 anos
Procfile Bind servers to in Procfile (#11378) há 2 anos Fix Procfile on OS X (#6748) há 3 anos 2019 -> 2020 (#12867) há 1 ano
Rakefile Initial commit há 5 anos
Vagrantfile Fix Node version in Vagrant (#13008) há 1 ano
app.json Remove deprecated config from Heroku and Scalingo (#11925) há 2 anos
babel.config.js Remove unnecessary dependencies (#12533) há 1 ano
boxfile.yml Correct the Nanobox deploy hooks for order and context (#12663) há 1 ano Fix rubocop issues, introduce usage of frozen literal to improve performance há 5 anos
crowdin.yml Update Crowdin configuration file há 2 anos
docker-compose.yml Merge branch 'master' of há 1 ano
package.json Bump react-redux from 7.1.3 to 7.2.0 (#13141) há 1 ano
postcss.config.js Increase files checked by ESLint (#9705) há 2 anos
priv-config TOR federation (#7875) há 3 anos
scalingo.json Remove deprecated config from Heroku and Scalingo (#11925) há 2 anos
yarn.lock Bump react-redux from 7.1.3 to 7.2.0 (#13141) há 1 ano


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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