Federated social network node, running on kosmos.social https://kosmos.social
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Eugen Rochko d5bfba3262
Do not test PAM authentication by default (#9027)
4 years ago
.circleci Use CircleCI workflows for ruby dependencies (#8228) 4 years ago
.github Fix feature request issue template 4 years ago
app Add "disable" button to report screen (#9024) 4 years ago
bin Upgrade Babel to version 7.0.0 (#5925) 4 years ago
config Add "disable" button to report screen (#9024) 4 years ago
db Add unread indicator to conversations (#9009) 4 years ago
dist Add nginx and systemd templates (#8770) 4 years ago
lib Bump version to 2.5.2 (#8960) 4 years ago
log Initial commit 7 years ago
nanobox [Nanobox] Tuning Update (#6660) 5 years ago
public update twemojie to v2 (#7911) 4 years ago
spec Do not test PAM authentication by default (#9027) 4 years ago
streaming Check if port/socket is available before forking in Streaming API (#9023) 4 years ago
vendor/assets Initial commit 7 years ago
.buildpacks Add ffmpeg buildpack for scalingo (#8500) 4 years ago
.codeclimate.yml fix RuboCop error (#7442) 4 years ago
.dockerignore Add .bundle to .dockerignore (#7895) 4 years ago
.editorconfig Add final newline to locale files (#2890) 5 years ago
.env.nanobox Rename S3_CLOUDFRONT_HOST to S3_ALIAS_HOST. (#8423) 4 years ago
.env.production.sample Rename S3_CLOUDFRONT_HOST to S3_ALIAS_HOST. (#8423) 4 years ago
.env.test Do not test PAM authentication by default (#9027) 4 years ago
.env.vagrant update vagrant configs (#8706) 4 years ago
.eslintignore Dev Tooling fixes (eslint/editorconfig) (#1398) 6 years ago
.eslintrc.yml Update ESLint for Code Climate (#7696) 4 years ago
.foreman Replace sprockets/browserify with Webpack (#2617) 5 years ago
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) 5 years ago
.gitignore Ignore elasticsearch directory (#7070) 5 years ago
.haml-lint.yml Added haml-lint and fix warnings (#2773) 5 years ago
.nanoignore Remove Storybook (#4397) 5 years ago
.nvmrc Upgrade Node.js to v8.x on nvmrc (#8023) 4 years ago
.postcssrc.yml Add object-fit polyfill for Edge (#4182) 5 years ago
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) 5 years ago
.rspec Adding a Mention model, test stubs 7 years ago
.rubocop.yml Move more tasks to tootctl (#8675) 4 years ago
.ruby-version Use Ruby ==2.5.2== 2.5.3 (#9003) 4 years ago
.scss-lint.yml Enable CodeClimate SCSS Lint checks (#2886) 5 years ago
.slugignore Remove Storybook (#4397) 5 years ago
.yarnclean Reduce container size with clean yarn (#3506) 5 years ago
AUTHORS.md using mailto scheme in AUTHORS.md (#8663) 4 years ago
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) 4 years ago
CHANGELOG.md Bump version to 2.5.2 (#8960) 4 years ago
CODE_OF_CONDUCT.md Add code of conduct from GitHub generator (#5674) 5 years ago
CONTRIBUTING.md Update CONTRIBUTING.md (#9014) 4 years ago
Capfile remove capistrano/faster_assets from Capfile (#2737) 5 years ago
Dockerfile Dockerfile: update Node to 8.12.0 and put Ruby on Alpine 3.7 for build system memory help (#8842) 4 years ago
Gemfile Bump strong_migrations from 0.2.3 to 0.3.0 (#8991) 4 years ago
Gemfile.lock Bump strong_migrations from 0.3.0 to 0.3.1 (#9015) 4 years ago
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 6 years ago
Procfile More robust PuSH subscription refreshes (#2799) 5 years ago
Procfile.dev Fix Procfile on OS X (#6748) 5 years ago
README.md Improve README (#9012) 4 years ago
Rakefile Initial commit 7 years ago
Vagrantfile update vagrant configs (#8706) 4 years ago
app.json Change logo URL for Heroku and Scalingo (#4476) 5 years ago
babel.config.js Upgrade Babel to version 7.0.0 (#5925) 4 years ago
boxfile.yml [Nanobox] Enable ElasticSearch support by default (#6977) 5 years ago
config.ru Fix rubocop issues, introduce usage of frozen literal to improve performance 6 years ago
docker-compose.yml Misc. typos (#8694) 4 years ago
jest.config.js Enable coverage for Jest (#5442) 5 years ago
package.json Revert Font Awesome 5 upgrade (#8810) 4 years ago
priv-config TOR federation (#7875) 4 years ago
scalingo.json Add ffmpeg buildpack for scalingo (#8500) 4 years ago
yarn.lock i18n: Update Polish translation (#8901) 4 years ago



GitHub release Build Status Code Climate Translation status 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 CONTRIBUTING.md

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/.