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


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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 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