Pull request Compare This branch is 3 commits ahead of tootsuite:master.
Latest commit 15f7295 Mar 29, 2018
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.circleci Use CircleCI workflows for ruby dependencies (#8228) Aug 18, 2018
.github Multiple Issue templates (#7402) May 8, 2018
app 8k対応 Sep 25, 2018
bin Upgrade Babel to version 7.0.0 (#5925) Sep 14, 2018
config URL置換 Sep 25, 2018
db Add missing indices for ON DELETE CASCADE constraints (#8332) Aug 21, 2018
dist Add nginx and systemd templates (#8770) Sep 24, 2018
lib Unconditionally re-encode locally-uploaded images to strip metadata (#… Sep 17, 2018
log Initial commit Feb 20, 2016
nanobox [Nanobox] Tuning Update (#6660) Mar 6, 2018
public update twemojie to v2 (#7911) Jul 5, 2018
spec Refactor active_nav_class for use with multiple paths (#8757) Sep 23, 2018
streaming Add health endpoint to streaming API (#8441) Aug 26, 2018
vendor/assets Initial commit Feb 20, 2016
.buildpacks Add ffmpeg buildpack for scalingo (#8500) Aug 28, 2018
.codeclimate.yml fix RuboCop error (#7442) Jun 4, 2018
.dockerignore Add .bundle to .dockerignore (#7895) Jun 26, 2018
.editorconfig Add final newline to locale files (#2890) May 7, 2017
.env.nanobox Rename S3_CLOUDFRONT_HOST to S3_ALIAS_HOST. (#8423) Aug 25, 2018
.env.production.sample Rename S3_CLOUDFRONT_HOST to S3_ALIAS_HOST. (#8423) Aug 25, 2018
.env.test Add parallel test processors (#7215) Apr 21, 2018
.env.vagrant update vagrant configs (#8706) Sep 16, 2018
.eslintignore Dev Tooling fixes (eslint/editorconfig) (#1398) Apr 10, 2017
.eslintrc.yml Update ESLint for Code Climate (#7696) Jun 1, 2018
.foreman Replace sprockets/browserify with Webpack (#2617) May 3, 2017
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) Jun 26, 2017
.gitignore Ignore elasticsearch directory (#7070) Apr 8, 2018
.haml-lint.yml Added haml-lint and fix warnings (#2773) May 8, 2017
.nanoignore Remove Storybook (#4397) Jul 27, 2017
.nvmrc Upgrade Node.js to v8.x on nvmrc (#8023) Jul 15, 2018
.postcssrc.yml Add object-fit polyfill for Edge (#4182) Jul 13, 2017
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) May 24, 2017
.rspec Adding a Mention model, test stubs Feb 24, 2016
.rubocop.yml Move more tasks to tootctl (#8675) Sep 14, 2018
.ruby-version Update Ruby to version 2.4.4 (#6964) Apr 1, 2018
.scss-lint.yml Enable CodeClimate SCSS Lint checks (#2886) May 7, 2017
.slugignore Remove Storybook (#4397) Jul 27, 2017
.yarnclean Reduce container size with clean yarn (#3506) Sep 30, 2017
AUTHORS.md using mailto scheme in AUTHORS.md (#8663) Sep 10, 2018
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) Sep 9, 2018
CODE_OF_CONDUCT.md Add code of conduct from GitHub generator (#5674) Nov 13, 2017
CONTRIBUTING.md Improve “how to translate” (#7358) May 4, 2018
Capfile remove capistrano/faster_assets from Capfile (#2737) May 3, 2017
Dockerfile Revert "Updated ruby/node images" (#8712) Sep 17, 2018
Gemfile Bump devise from 4.4.3 to 4.5.0 (#8778) Sep 25, 2018
Gemfile.lock Bump devise from 4.4.3 to 4.5.0 (#8778) Sep 25, 2018
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 Sep 21, 2016
Procfile More robust PuSH subscription refreshes (#2799) May 5, 2017
Procfile.dev Fix Procfile on OS X (#6748) Mar 12, 2018
README.md Update README.md Sep 2, 2018
Rakefile Initial commit Feb 20, 2016
Vagrantfile update vagrant configs (#8706) Sep 16, 2018
app.json Change logo URL for Heroku and Scalingo (#4476) Aug 1, 2017
babel.config.js Upgrade Babel to version 7.0.0 (#5925) Sep 14, 2018
boxfile.yml [Nanobox] Enable ElasticSearch support by default (#6977) Mar 31, 2018
config.ru Fix rubocop issues, introduce usage of frozen literal to improve perf… Nov 15, 2016
docker-compose.yml Misc. typos (#8694) Sep 13, 2018
jest.config.js Enable coverage for Jest (#5442) Oct 18, 2017
package.json Add bot icon to bot avatars and migrate to newer version of Font Awes… Sep 25, 2018
priv-config TOR federation (#7875) Jun 26, 2018
scalingo.json Add ffmpeg buildpack for scalingo (#8500) Aug 28, 2018
yarn.lock Add bot icon to bot avatars and migrate to newer version of Font Awes… Sep 25, 2018



Build Status Code Climate Translation status

Mastodon is a free, open-source social network server based on open web protocols like ActivityPub and OStatus. The social focus of the project is a viable decentralized alternative to commercial social media silos that returns the control of the content distribution channels to the people. The technical focus of the project is a good user interface, a clean REST API for 3rd party apps and robust anti-abuse tools.

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


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.



No vendor lock-in: Fully interoperable with any conforming platform

It doesn't have to be Mastodon, whatever implements ActivityPub or OStatus is part of the social network!

Real-time 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!

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 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!

OAuth2 and a straightforward REST API

Mastodon acts as an OAuth2 provider so 3rd party apps can use the API

Fast response times

Mastodon tries to be as fast and responsive as possible, so all long-running tasks are delegated to background processing

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


Please follow the development guide from the documentation repository.


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 irc.freenode.net


Copyright (C) 2016-2018 Eugen Rochko & other Mastodon contributors (see AUTHORS.md)

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 https://www.gnu.org/licenses/.

Extra credits

The elephant friend illustrations are created by Dopatwo