Self-Hosted Software Content Management Systems (CMS)

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1. Alfresco Community Edition

The open source Enterprise Content Management software that handles any type of content, allowing users to easily share and collaborate on content. ([Source Code](https://hub.alfresco.com/t5/alfresco-content-services-hub/project-overview-repository/ba-p/290502)) `LGPL-3.0` `Java`

2. Apostrophe

CMS with a focus on extensible in-context editing tools. ([Demo](https://dashboard.apostrophecmsdemo.org), [Source Code](https://github.com/apostrophecms/apostrophe)) `MIT` `Nodejs`

3. b2evolution CMS

The most integrated CMS ever: b2evolution includes everything you need to build websites for publishing, sharing and interacting with your community. ([Source Code](https://github.com/b2evolution/b2evolution)) `GPL-2.0` `PHP`

4. Backdrop CMS

Comprehensive CMS for small to medium sized businesses and non-profits. ([Source Code](https://github.com/backdrop/backdrop)) `GPL-2.0` `PHP`

5. BigTree CMS

Straightforward, well documented, and capable written with PHP and MySQL. ([Source Code](https://github.com/bigtreecms/BigTree-CMS)) `LGPL-2.1` `PHP`

6. Bolt CMS

Open source Content Management Tool, which strives to be as simple and straightforward as possible. ([Demo](https://try.bolt.cm/), [Source Code](https://github.com/bolt/bolt)) `MIT` `PHP`

7. CMS Made Simple

Open source content management system, faster and easier management of website contents, scalable for small businesses to large corporations. ([Source Code](http://svn.cmsmadesimple.org/svn/cmsmadesimple/trunk/)) `GPL-1.0` `PHP`

8. Cockpit

Simple Content Platform to manage any structured content. ([Source Code](https://github.com/agentejo/cockpit)) `MIT` `PHP`

9. Concrete 5 CMS

Open source content management system. ([Source Code](https://github.com/concrete5/concrete5)) `MIT` `PHP`

10. Contao

Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications. ([Source Code](https://github.com/contao/contao/)) `LGPL-3.0` `PHP`

11. CouchCMS

Simple Open-Source CMS for designers. ([Source Code](https://github.com/CouchCMS/CouchCMS)) `CPAL-1.0` `PHP`

12. Directus

An Instant App & API for your SQL Database. Directus wraps your new or existing SQL database with a realtime GraphQL+REST API for developers, and an intuitive admin app for non-technical users. ([Source Code](https://github.com/directus/directus)) `GPL-3.0` `Nodejs`

13. Drupal

Advanced open source content management platform. ([Source Code](https://git.drupalcode.org/project/drupal)) `GPL-2.0` `PHP`

14. eLabFTW

Online lab notebook for research labs. Store experiments, use a database to find reagents or protocols, use trusted timestamping to legally timestamp an experiment, export as pdf or zip archive, share with collaborators…. ([Demo](https://demo.elabftw.net), [Source Code](https://github.com/elabftw/elabftw)) `AGPL-3.0` `PHP`

15. Expressa

Content Management System for powering database driven websites using JSON schemas. Provides permission management and automatic REST APIs. `MIT` `Nodejs`

16. Flextype

Flextype is an open-source Hybrid Content Management System with the freedom of a headless CMS and with the full functionality of a traditional CMS. ([Demo](https://demo.flextype.org/), [Source Code](https://github.com/flextype/flextype)) `MIT` `PHP`

17. GetSimple CMS

The Simplest Content Management System. Ever. ([Source Code](https://github.com/GetSimpleCMS/GetSimpleCMS)) `GPL-3.0` `PHP`

18. Joomla!

Advanced Content Management System (CMS). ([Source Code](https://github.com/joomla/joomla-cms)) `GPL-2.0` `PHP`

19. KeystoneJS

CMS and Web Application Platform. ([Demo](https://demo.keystonejs.com/), [Source Code](https://github.com/keystonejs/keystone)) `MIT` `Nodejs`

20. MODX

MODX is an advanced content management and publishing platform. The current version is called 'Revolution'. ([Source Code](https://github.com/modxcms/revolution)) `GPL-2.0` `PHP`

21. Neos

Neos or TYPO3 Neos (for version 1) is a modern, open source CMS. ([Source Code](https://git.typo3.org/Packages/TYPO3.Neos.git)) `GPL-3.0` `PHP`

22. Noosfero

Noosfero is a web platform for social and solidarity economy networks with blog, e-Portfolios, CMS, RSS, thematic discussion, events agenda and collective intelligence for solidarity economy in the same system. `AGPL-3.0` `Ruby`

23. october

Free, open-source, self-hosted CMS platform. ([Source Code](https://github.com/octobercms/october)) `MIT` `PHP`

24. Omeka

Create complex narratives and share rich collections, adhering to Dublin Core standards with Omeka on your server, designed for scholars, museums, libraries, archives, and enthusiasts. ([Demo](https://omeka.org/classic/showcase/), [Source Code](https://github.com/omeka/Omeka)) `GPL-3.0` `PHP`

25. Pagekit

New modern CMS to create and share. ([Source Code](https://github.com/pagekit/pagekit)) `MIT` `PHP`

26. Pico

Stupidly simple, blazing fast, flat file CMS. ([Source Code](https://github.com/picocms/Pico)) `MIT` `PHP`

27. Pimcore

Multi-Channel Experience and Engagement Management Platform. ([Source Code](https://github.com/pimcore/pimcore)) `GPL-3.0-or-later` `PHP`

28. Plone

Powerful open-source CMS system. ([Source Code](https://github.com/plone)) `ZPL-2.0` `Python`

29. ProcessWire

ProcessWire is an open source content management system (CMS) and web application framework aimed at the needs of designers, developers and their clients. ([Source Code](https://github.com/ryancramerdesign/ProcessWire)) `MPL-2.0` `PHP`

30. PropertyWebBuilder

Ultimate Ruby on Rails engine for creating real estate websites. ([Demo](https://propertywebbuilder.herokuapp.com), [Source Code](https://github.com/etewiah/property_web_builder)) `MIT` `Ruby`

31. Publify

Simple but full featured web publishing software. ([Source Code](https://github.com/publify/publify)) `MIT` `Ruby`

32. REDAXO

Simple, flexible and useful content management system (documentation only available in German). ([Source Code](https://github.com/redaxo/redaxo)) `MIT` `PHP`

33. Redaxscript

Ultra lightweight CMS for MySQL, SQLite and PostgreSQL. ([Demo](https://demo.redaxscript.com/login), [Source Code](https://github.com/redaxscript/redaxscript)) `GPL-3.0` `PHP`

34. Roadiz

Modern CMS based on a node system which can handle many types of services. ([Source Code](https://github.com/roadiz/roadiz)) `MIT` `PHP`

35. SilverStripe

Easy to use CMS with powerful MVC framework underlying. ([Demo](https://demo.silverstripe.org/), [Source Code](https://github.com/silverstripe)) `BSD-3-Clause` `PHP`

36. SPIP

Publication system for the Internet aimed at collaborative work, multilingual environments, and simplicity of use for web authors. ([Source Code](https://git.spip.net/)) `GPL-3.0` `PHP`

37. Squidex

Headless CMS, based on MongoDB, CQRS and Event Sourcing. ([Demo](https://cloud.squidex.io), [Source Code](https://github.com/Squidex/squidex)) `MIT` `.NET`

38. Strapi

The most advanced open-source Content Management Framework (headless-CMS) to build powerful API with no effort. ([Source Code](https://github.com/strapi/strapi)) `MIT` `Nodejs`

39. Textpattern

Flexible, elegant and easy-to-use CMS. ([Demo](https://textpattern.co/demo), [Source Code](https://github.com/textpattern/textpattern)) `GPL-2.0` `PHP`

40. Typemill

Author-friendly flat-file-cms with a visual markdown editor based on vue.js. ([Source Code](https://github.com/typemill/typemill)) `MIT` `PHP`

41. TYPO3

Powerful and advanced CMS with a large community. ([Source Code](https://github.com/TYPO3/TYPO3.CMS)) `GPL-2.0` `PHP`

42. Umbraco

The friendly CMS. Free and open source with an amazing community. ([Source Code](https://github.com/umbraco/Umbraco-CMS)) `MIT` `.NET`

43. Wagtail

Django content management system focused on flexibility and user experience. ([Source Code](https://github.com/wagtail/wagtail)) `BSD-3-Clause` `Python`

44. WonderCMS

WonderCMS is the smallest flat file CMS since 2008. ([Demo](https://www.wondercms.com/demo), [Source Code](https://github.com/robiso/wondercms)) `MIT` `PHP`

45. WordPress

World's most-used blogging and CMS engine. ([Source Code](https://github.com/WordPress/WordPress)) `GPL-2.0` `PHP`

46. WriteFreely

Writing software for starting a minimalist, federated blog — or an entire community. ([Source Code](https://github.com/writefreely/writefreely)) `AGPL-3.0` `Go`