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Marcin Cieślak 8d3412c90c Ignore /vendor/bundle (#1880) 7 years ago
app Add FR locales to the onboarding modal (#1976) 7 years ago
bin Add binstub for rspec from rspec-core (#1913) 7 years ago
config Updated, improved and fixed Dutch language strings (#2030) 7 years ago
db Add language detection (#1772) 7 years ago
docs Fix redirect link on (#1595) 7 years ago
lib Fix #1972, fix #1870 - Fix special characters in XML, add tests (#1988) 7 years ago
log Initial commit 8 years ago
public Add mask-icon.svg (#1572) (#1585) 7 years ago
spec Instance helper to replace site title helper (#2038) 7 years ago
storybook Add function color remaining text (#1980) 7 years ago
streaming Improve streaming server with cluster (#1970) 7 years ago
vendor/assets Initial commit 8 years ago
.babelrc Debounce autosuggestions requests 8 years ago
.buildpacks Install nodejs before ruby 7 years ago
.codeclimate.yml Disable CodeClimate duplication checks (#1943) 7 years ago
.dockerignore Add eslint-plugin-jsx-a11y (#1651) 7 years ago
.editorconfig Dev Tooling fixes (eslint/editorconfig) (#1398) 7 years ago
.env.production.sample Add documentation of SMTP_DOMAIN (#1738) 7 years ago
.env.test Add recovery code support for two-factor auth (#1773) 7 years ago
.env.vagrant Add a default to .env.vagrant 7 years ago
.eslintignore Dev Tooling fixes (eslint/editorconfig) (#1398) 7 years ago
.eslintrc Add eslint-plugin-jsx-a11y (#1651) 7 years ago
.gitignore Ignore /vendor/bundle (#1880) 7 years ago
.nvmrc update Node to 6.x LTS (#1228) 7 years ago
.rspec Adding a Mention model, test stubs 8 years ago
.rubocop.yml Fix tests, add applications to eager loading/cache for statuses, fix 8 years ago
.ruby-version Version bumps for ruby and misc gems (#1159) 7 years ago
.slugignore Updates slugignore. 7 years ago
.travis.yml I18n health warnings (#1949) 7 years ago README tidy up (#2026) 7 years ago
Capfile Speed up capistrano deployments 7 years ago
Dockerfile Update node.js and imagemagick (#1951) 7 years ago
Gemfile Add language detection (#1772) 7 years ago
Gemfile.lock Add language detection (#1772) 7 years ago Adds note for instance admins. (#1925) 7 years ago
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 8 years ago
Procfile Force UTF8 encoding on generated XML (#1140) 7 years ago README tidy up (#2026) 7 years ago
Rakefile Initial commit 8 years ago
Vagrantfile NFS for shared folder requires a private_network (#1263) 7 years ago
app.json More SMTP customization (#1372) 7 years ago Fix rubocop issues, introduce usage of frozen literal to improve performance 8 years ago
docker-compose.yml Use image too in docker-compose (#1109) 7 years ago
package.json Add the licence key in package.json (#1914) 7 years ago
scalingo.json More SMTP customization (#1372) 7 years ago
yarn.lock Add eslint-plugin-jsx-a11y (#1651) 7 years ago


Build Status Code Climate

Mastodon is a free, open-source social network server. A decentralized solution to commercial platforms, it avoids the risks of a single company monopolizing your communication. Anyone can run Mastodon and participate in the social network seamlessly.

An alternative implementation of the GNU social project. Based on ActivityStreams, Webfinger, PubsubHubbub and Salmon.

Click on the screenshot to watch a demo of the UI:


The project focus is a clean REST API and a good user interface. Ruby on Rails is used for the back-end, while React.js and Redux are used for the dynamic front-end. A static front-end for public resources (profiles and statuses) is also provided.

If you would like, you can support the development of this project on Patreon. Alternatively, you can donate to this BTC address: 17j2g7vpgHhLuXhN4bueZFCvdxxieyRVWd



  • Fully interoperable with GNU social and any OStatus platform Whatever implements Atom feeds, ActivityStreams, Salmon, PubSubHubbub and Webfinger is part of the network
  • Real-time timeline updates See the updates of people you're following appear in real-time in the UI via WebSockets
  • Federated thread resolving If someone you follow replies to a user unknown to the server, the server fetches the full thread so you can view it without leaving the UI
  • Media attachments like images and WebM Upload and view images and WebM videos attached to the updates
  • OAuth2 and a straightforward REST API Mastodon acts as an OAuth2 provider so 3rd party apps can use the API, which is RESTful and simple
  • Background processing for long-running tasks Mastodon tries to be as fast and responsive as possible, so all long-running tasks that can be delegated to background processing, are
  • Deployable via Docker You don't need to mess with dependencies and configuration if you want to try Mastodon, if you have Docker and Docker Compose the deployment is extremely easy


There are guides in the documentation repository for deploying on various platforms.


You can open issues for bugs you've found or features you think are missing. You can also submit pull requests to this repository. Here are the guidelines for code contributions

IRC channel: #mastodon on

Extra credits

  • The Emoji One pack has been used for the emojis
  • The error page image courtesy of Dopatwo

Mastodon error image