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Arlo (Hyena) 58cfdec360 Merge branch 'fix-wider' of asonix/mastodon into asonix/changes 6 days ago
.circleci Add missing locale file for ga and add rake task to check for it (#11813) 1 month ago
.dependabot Change dependabot update schedule from live to weekly (#10949) 4 months ago
.github Add sponsor button to GitHub web UI (#10814) 4 months ago
app Make wider work better on single-column layout 6 days ago
bin Bump webpacker from 3.5.5 to 4.0.2 (#10277) 7 months ago
config Merge branch 'asonix/changes' into v3.0.0-branch 6 days ago
db Fix account counters being overwritten by parallel writes (#12045) 1 week ago
dist Add TLS v1.3 support (#11603) 1 month ago
lib Merge branch 'asonix/changes' into v3.0.0-branch 6 days ago
log Initial commit 3 years ago
nanobox Resync Nanobox files with the 2.9.0 release (#11083) 4 months ago
public Add OCR tool to media editing modal (#11566) 2 months ago
spec Add `reason` param to `POST /api/v1/accounts` REST API (#12064) 1 week ago
streaming Add whitelist mode (#11291) 2 months ago
vendor Increase files checked by ESLint (#9705) 9 months ago
.buildpacks Add ffmpeg buildpack for scalingo (#8500) 1 year ago
.codeclimate.yml Replace from scss-lint to sass-lint (#10958) 4 months ago
.dockerignore Add .bundle to .dockerignore (#7895) 1 year ago
.editorconfig Dev Tooling fixes (eslint/editorconfig) (#1398) 2 years ago
.env.nanobox Various updates for Nanobox deploys (#11988) 1 week ago
.env.production.sample Remove quotes in `LDAP_SEARCH_FILTER` example (#12019) 1 week ago
.env.test Do not test PAM authentication by default (#9027) 11 months ago
.env.vagrant update vagrant configs (#8706) 1 year ago
.eslintignore Increase files checked by ESLint (#9705) 9 months ago
.eslintrc.js Refactor icons in web UI to use Icon component (#9951) 8 months ago
.foreman Replace sprockets/browserify with Webpack (#2617) 2 years ago
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) 2 years ago
.gitignore Merge tag 'v2.4.0rc1' into asonix/changes 1 year ago
.haml-lint.yml Added haml-lint and fix warnings (#2773) 2 years ago
.nanoignore Remove Storybook (#4397) 2 years ago
.node-version Bump node version 6 months ago
.nvmrc Upgrade Node.js to v8.x on nvmrc (#8023) 1 year ago
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) 2 years ago
.rspec Adding a Mention model, test stubs 3 years ago
.rubocop.yml require rubocop-rails in .rubocop.yml (#10974) 4 months ago
.ruby-version Use Ruby 2.6.5 (#12049) 1 week ago
.sass-lint.yml Fix sass-lint config (#10982) 4 months ago
.slugignore Remove Storybook (#4397) 2 years ago
.yarnclean Replace from scss-lint to sass-lint (#10958) 4 months ago Bump version to 2.8.0rc1 (#10340) 6 months ago
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) 1 year ago Bump version to 3.0.0 (#12000) 1 week ago Add code of conduct from GitHub generator (#5674) 1 year ago Update translating platform has changed to crowdin ( (#11094) 4 months ago
Capfile remove capistrano/faster_assets from Capfile (#2737) 2 years ago
Dockerfile Update nodejs in Dockerfile (#12052) 1 week ago
Gemfile Add parallelization to `tootctl search deploy` (#12051) 1 week ago
Gemfile.lock Bump patch level of Ruby (#12070) 1 week ago
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 3 years ago
Procfile Bind servers to in Procfile (#11378) 2 months ago Fix Procfile on OS X (#6748) 1 year ago Change translations badge in README to Crowdin (#11054) 4 months ago
Rakefile Initial commit 3 years ago
Vagrantfile Add clearer error when/if gpg fails to install (#10228) 7 months ago
app.json Remove deprecated config from Heroku and Scalingo (#11925) 3 weeks ago
babel.config.js Fix tesseract.js being part of the common chunk (#11571) 2 months ago
boxfile.yml Various updates for Nanobox deploys (#11988) 1 week ago Fix rubocop issues, introduce usage of frozen literal to improve performance 2 years ago
crowdin.yml Update Crowdin configuration file 1 month ago
docker-compose.yml Add healthcheck endpoint for web (#11770) 1 month ago
package.json Bump eslint from 6.1.0 to 6.4.0 (#11929) 3 weeks ago
postcss.config.js Increase files checked by ESLint (#9705) 9 months ago
priv-config TOR federation (#7875) 1 year ago
scalingo.json Remove deprecated config from Heroku and Scalingo (#11925) 3 weeks ago
yarn.lock Bump webpack from 4.35.3 to 4.41.0 (#12026) 1 week 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 © 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