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James Adney b059a98025 use S3 "domain-style" URLs vor 3 Monaten
.circleci Add missing locale file for ga and add rake task to check for it (#11813) vor 4 Monaten
.dependabot Change dependabot update schedule from live to weekly (#10949) vor 7 Monaten
.github Add sponsor button to GitHub web UI (#10814) vor 8 Monaten
app add noindex header to statuses#show vor 3 Monaten
bin Bump webpacker from 3.5.5 to 4.0.2 (#10277) vor 10 Monaten
config use S3 "domain-style" URLs vor 3 Monaten
db Fix old migration trying to use new column due to default status scope (#12095) vor 3 Monaten
dist Add TLS v1.3 support (#11603) vor 4 Monaten
lib Fix preloaded JSON-LD context for identity not being used (#12138) vor 3 Monaten
log Initial commit vor 3 Jahren
nanobox Resync Nanobox files with the 2.9.0 release (#11083) vor 7 Monaten
public Add OCR tool to media editing modal (#11566) vor 5 Monaten
spec feat(cookies): Use the same-site attribute to lax vor 3 Monaten
streaming Add whitelist mode (#11291) vor 5 Monaten
vendor Increase files checked by ESLint (#9705) vor 1 Jahr
.buildpacks Add ffmpeg buildpack for scalingo (#8500) vor 1 Jahr
.codeclimate.yml Replace from scss-lint to sass-lint (#10958) vor 7 Monaten
.dockerignore Add .bundle to .dockerignore (#7895) vor 1 Jahr
.editorconfig Add final newline to locale files (#2890) vor 2 Jahren
.env.nanobox Various updates for Nanobox deploys (#11988) vor 3 Monaten
.env.production.sample Remove quotes in `LDAP_SEARCH_FILTER` example (#12019) vor 3 Monaten
.env.test Do not test PAM authentication by default (#9027) vor 1 Jahr
.env.vagrant update vagrant configs (#8706) vor 1 Jahr
.eslintignore Increase files checked by ESLint (#9705) vor 1 Jahr
.eslintrc.js Refactor icons in web UI to use Icon component (#9951) vor 11 Monaten
.foreman Replace sprockets/browserify with Webpack (#2617) vor 2 Jahren
.gitattributes Add .gitattributes file to avoid unwanted CRLF (#3954) vor 2 Jahren
.gitignore Ignore elasticsearch directory (#7070) vor 1 Jahr
.haml-lint.yml Added haml-lint and fix warnings (#2773) vor 2 Jahren
.nanoignore Remove Storybook (#4397) vor 2 Jahren
.nvmrc Upgrade Node.js to v8.x on nvmrc (#8023) vor 1 Jahr
.profile Add ffmpeg and dependent packages as well as LD_LIBRARY_PATHs (#3276) vor 2 Jahren
.rspec Adding a Mention model, test stubs vor 3 Jahren
.rubocop.yml require rubocop-rails in .rubocop.yml (#10974) vor 7 Monaten
.ruby-version Use Ruby 2.6.5 (#12049) vor 3 Monaten
.sass-lint.yml Fix sass-lint config (#10982) vor 7 Monaten
.slugignore Remove Storybook (#4397) vor 2 Jahren
.yarnclean Replace from scss-lint to sass-lint (#10958) vor 7 Monaten
AUTHORS.md Update AUTHORS.md (#12096) vor 3 Monaten
Aptfile Adjust Aptfile for Heroku-18 stack (#8588) vor 1 Jahr
CHANGELOG.md Update changelog for 3.0.1 (#12139) vor 3 Monaten
CODE_OF_CONDUCT.md Add code of conduct from GitHub generator (#5674) vor 2 Jahren
CONTRIBUTING.md Update translating platform has changed to crowdin (CONTRIBUTING.md) (#11094) vor 7 Monaten
Capfile remove capistrano/faster_assets from Capfile (#2737) vor 2 Jahren
Dockerfile Update nodejs in Dockerfile (#12052) vor 3 Monaten
Gemfile Bump faker from 2.4.0 to 2.5.0 (#12010) vor 3 Monaten
Gemfile.lock Bump capistrano from 3.11.1 to 3.11.2 (#12012) vor 3 Monaten
LICENSE Fix #49 - License changed from GPL-2.0 to AGPL-3.0 vor 3 Jahren
Procfile Bind servers to in Procfile (#11378) vor 6 Monaten
Procfile.dev Fix Procfile on OS X (#6748) vor 1 Jahr
README.md Fix spelling error in README (#12086) vor 3 Monaten
Rakefile Initial commit vor 3 Jahren
Vagrantfile Add clearer error when/if gpg fails to install (#10228) vor 10 Monaten
app.json Remove deprecated config from Heroku and Scalingo (#11925) vor 3 Monaten
babel.config.js Fix tesseract.js being part of the common chunk (#11571) vor 5 Monaten
boxfile.yml Various updates for Nanobox deploys (#11988) vor 3 Monaten
config.ru Fix rubocop issues, introduce usage of frozen literal to improve performance vor 3 Jahren
crowdin.yml Update Crowdin configuration file vor 4 Monaten
docker-compose.yml Add healthcheck endpoint for web (#11770) vor 4 Monaten
package.json Bump tesseract.js from 2.0.0-alpha.15 to 2.0.0-alpha.16 (#12013) vor 3 Monaten
postcss.config.js Increase files checked by ESLint (#9705) vor 1 Jahr
priv-config TOR federation (#7875) vor 1 Jahr
scalingo.json Remove deprecated config from Heroku and Scalingo (#11925) vor 3 Monaten
yarn.lock Bump tesseract.js from 2.0.0-alpha.15 to 2.0.0-alpha.16 (#12013) vor 3 Monaten



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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 choices!


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. If your contributions are accepted into Mastodon, you can request to be paid through our OpenCollective.

IRC channel: #mastodon on irc.freenode.net


Copyright © 2016-2019 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/.