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ThibG 3086c645fd Add option to disable blurhash previews (#11188) 5 years ago
.circleci Fix check-i18n builds (#11084) 5 years ago
.dependabot Change dependabot update schedule from live to weekly (#10949) 5 years ago
.github Add sponsor button to GitHub web UI (#10814) 5 years ago
app Add option to disable blurhash previews (#11188) 5 years ago
bin Bump webpacker from 3.5.5 to 4.0.2 (#10277) 5 years ago
config Add option to disable blurhash previews (#11188) 5 years ago
db Fix old migrations failing because of new version of `strong_migrations` (#11018) 5 years ago
dist Cache error 410 responses in recommended nginx configuration (#10425) 5 years ago
lib Bump version to 2.9.2 (#11152) 5 years ago
log Initial commit 8 years ago
nanobox Resync Nanobox files with the 2.9.0 release (#11083) 5 years ago
public Disallow robots from indexing /interact/ (#10666) 5 years ago
spec Add support for Audio activities (#11189) 5 years ago
streaming Improve streaming server security (#10818) 5 years ago
vendor Increase files checked by ESLint (#9705) 5 years ago
.buildpacks Add ffmpeg buildpack for scalingo (#8500) 6 years ago
.codeclimate.yml Replace from scss-lint to sass-lint (#10958) 5 years ago
.dockerignore Add .bundle to .dockerignore (#7895) 6 years ago
.editorconfig Add final newline to locale files (#2890) 7 years ago
.env.nanobox Rename S3_CLOUDFRONT_HOST to S3_ALIAS_HOST. (#8423) 6 years ago
.env.production.sample Add ES_PREFIX in .env.production.sample (#10087) 5 years ago
.env.test Do not test PAM authentication by default (#9027) 6 years ago
.env.vagrant update vagrant configs (#8706) 6 years ago
.eslintignore Increase files checked by ESLint (#9705) 5 years ago
.eslintrc.js Refactor icons in web UI to use Icon component (#9951) 5 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 Ignore elasticsearch directory (#7070) 6 years ago
.haml-lint.yml Added haml-lint and fix warnings (#2773) 7 years ago
.nanoignore Remove Storybook (#4397) 7 years ago
.nvmrc Upgrade Node.js to v8.x on nvmrc (#8023) 6 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 8 years ago
.rubocop.yml require rubocop-rails in .rubocop.yml (#10974) 5 years ago
.ruby-version Upgrade Ruby to 2.6.1 (#9956) 5 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 2.8.0rc1 (#10340) 5 years ago
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) 6 years ago Fix unconverted PRs in the changelog (#11155) 5 years ago Add code of conduct from GitHub generator (#5674) 7 years ago Update translating platform has changed to crowdin ( (#11094) 5 years ago
Capfile remove capistrano/faster_assets from Capfile (#2737) 7 years ago
Dockerfile Docker: Remove dist-upgrade (#10822) 5 years ago
Gemfile Bump aws-sdk-s3 from 1.42.0 to 1.43.0 (#11172) 5 years ago
Gemfile.lock Bump derailed_benchmarks from 1.3.5 to 1.3.6 (#11171) 5 years ago
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 8 years ago
Procfile More robust PuSH subscription refreshes (#2799) 7 years ago Fix Procfile on OS X (#6748) 6 years ago Change translations badge in README to Crowdin (#11054) 5 years ago
Rakefile Initial commit 8 years ago
Vagrantfile Add clearer error when/if gpg fails to install (#10228) 5 years ago
app.json Change logo URL for Heroku and Scalingo (#4476) 7 years ago
babel.config.js New Crowdin translations (#11077) 5 years ago
boxfile.yml Resync Nanobox files with the 2.9.0 release (#11083) 5 years ago Fix rubocop issues, introduce usage of frozen literal to improve performance 8 years ago
crowdin.yml Update crowdin.yml 5 years ago
docker-compose.yml Upgrade redis in docker-compose.yml from 4 to 5 (#9063) 5 years ago
package.json Bump stringz from 1.0.0 to 2.0.0 (#11168) 5 years ago
postcss.config.js Increase files checked by ESLint (#9705) 5 years ago
priv-config TOR federation (#7875) 6 years ago
scalingo.json Add ffmpeg buildpack for scalingo (#8500) 6 years ago
yarn.lock Bump stringz from 1.0.0 to 2.0.0 (#11168) 5 years ago


GitHub release Build Status Code Climate Crowdin Docker Pulls

Mastodon is a free, open-source social network server based on ActivityPub. Follow friends and discover new ones. Publish anything you want: links, pictures, text, video. All servers of Mastodon are interoperable as a federated network, i.e. users on one server can seamlessly communicate with users from another one. This includes non-Mastodon software that also 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 choice!


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 8+

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) 2016-2019 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