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Matt Jankowski 532bec6e56 Clean up flash display in views (#2336) 7 years ago
app Clean up flash display in views (#2336) 7 years ago
bin Install Yarn dependencies during setup (#1169) 7 years ago
config Move force_ssl check to production config (#2165) 7 years ago
db it may be mentions_status_id_index is duplicated of index_mentions_on_status_id index. (#2224) 7 years ago
docs Fix redirect link on (#1595) 7 years ago
lib Adds version to about/more and API (#2181) 7 years ago
log Initial commit 9 years ago
public Add mask-icon.svg (#1572) (#1585) 7 years ago
spec Add og:url tags (#2298) 7 years ago
storybook Update storybook file autoload (#2057) 7 years ago
streaming refactor-cores (#2308) 7 years ago
vendor/assets Initial commit 9 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 Updated note about 'none' SMTP authentication method in .env.production.sample (#2167) 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 8 years ago
.eslintignore Dev Tooling fixes (eslint/editorconfig) (#1398) 7 years ago
.eslintrc.json Use new ESLint filename (.json) (#2248) 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 9 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 Fix #2108 - Fix gif uploads (#2171) 7 years ago README tidy up (#2026) 7 years ago
Capfile Speed up capistrano deployments 8 years ago
Dockerfile Make Docker image buildable on ARM (#2065) 7 years ago
Gemfile Use local_time gem for timezone replacement (#2174) 7 years ago
Gemfile.lock Use local_time gem for timezone replacement (#2174) 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 9 years ago
Vagrantfile Fix issue with line return in file (#1947) 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 update emojione-picker for fixed warnings. (#2324) 7 years ago
scalingo.json More SMTP customization (#1372) 7 years ago
yarn.lock update emojione-picker for fixed warnings. (#2324) 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