Bolt is a fully open source, adaptable platform for building and running modern websites. It's built on PHP, Symfony, Doctrine, Twig, API-Platform and more. Bolt can be used as a traditional CMS or headless/decoupled. It is fully multilingual, and extensible using custom code in your projects, or through extensions installed from the Composer ecosystem.
 
It is fully extensible with Symfony 5 extensions. Adding new types of pages, new fields, new languages, etc. is all done in neat YAML. It has out of the box RESTful and GraphQL support.

Bolt is a fully open source, adaptable platform for building and running modern websites. It's built on PHP, Symfony, Doctrine, Twig, API-Platform and more. Bolt can be used as a traditional CMS or headless/decoupled. It is fully multilingual, and extensible using custom code in your projects, or through extensions installed from the Composer ecosystem.

Bolt CMS - A tool for Content Management, which strives to be as simple and straightforward as possible

The Sanity Studio is an open-source CMS built with React.js. It offers rapid configuration and free form customization. It ships as an open-source single page application. Install plugins from npm or build your own. Integrate Sanity in your applications. It provides instant updates, describe content models, validations, and UI structures in JavaScript and see them instantly hot-reload in the next window.
 
It supports efficient workflows for editing, organizing, and enhancing your content. Sanity was built for real-time from the ground up. The real-time capabilities not only gives you very fine-grained keystroke level audit logs. It also means that there’s no locking and that multiple people can work on the same document at once.

The Sanity Studio is an open-source CMS built with React.js. It offers rapid configuration and free form customization. It ships as an open-source single page application. Install plugins from npm or build your own. Integrate Sanity in your applications. It provides instant updates, describe content models, validations, and UI structures in JavaScript and see them instantly hot-reload in the next window.

The Sanity Content Studio – Collaborate in real-time on structured content

Symphony is a web-based content management system (CMS) that enables users to create and manage websites and web applications of all shapes and sizes—from the simplest of blogs to bustling news sites and feature-packed social networks. 

 A project's content types are defined using sections and fields. Its pages provide dynamic front-end interfaces for viewing and interacting with that content. Data sources fetch and organize the content and deliver it to pages as XML, where page templates and utilities are applied to transform it into a desired format (HTML, for example). Advanced interactions, like data submission, can be enabled using events. 

 You will need to design your own data models, thinking carefully about the structure of your content and how different types relate to one another. You will have to draw up an architecture and URL schema for your front end. And you'll need to map out how you want your content to flow through the system. <img src="/AppImages/Article/symphony-screen1.png" alt="" class="float-center">

Symphony is a web-based content management system (CMS) that enables users to create and manage websites and web applications of all shapes and sizes—from the simplest of blogs to bustling news sites and feature-packed social networks.

Symphony CMS - XSLT powered CMS

Cezerin is React and Node.js based eCommerce platform. Allows creating a Progressive Web Apps. It feature include list Product details, Product categories, Inventory and stock management, Orders, Pages, Shipping and payment methods, Payment Gateways,  Checkout options, Theme Settings, App store, Server-side rendering (SEO friendly) and lot more.

Cezerin - Ecommerce Progressive Web Apps

Radiant is a no-fluff, open source content management system designed for small teams. Its features include: 
 <UL>
	<LI>Simple Admin Interface</LI>
	<LI>Pages are composed of multiple parts such as a body and sidebar</LI>
	<LI>Content that is used in multiple places can be stored in a Snippet</LI>
	<LI>Layouts</LI>
	<LI>Flexible Site Structure</LI>
	<LI>Radius Template Language</LI>
	<LI>Custom Text Filters</LI>
	<LI>Intelligent Page Caching</LI>
 </UL>

Radiant is a no-fluff, open source content management system designed for small teams.

Radiantcms

Open Source Content Management Platform - CMS for the magazines, newspappers websites and portals with high-traffic, using the Django Framework. 

Opps - Content Management Platform for the magazine websites

 Squidex is an open source headless CMS and content management hub. In contrast to a traditional CMS Squidex provides a rich API with OData filter and Swagger definitions. It is up to you to build your UI on top of it. It can be website, a native app or just another server. We build it with ASP.NET Core and CQRS and is tested for Windows and Linux on modern browsers. 

Squidex - Headless CMS and Content Managment Hub

concrete5 is a open source CMS implemented in PHP. It provides support to do In-context editing. File manager manages the images and documents which could be used throughout the site. Every page in a concrete5 site is part of one unified hierarchy called site tree. It provides support for User management, full text search, Page versions and lot more. Sourceforge location: <A HREF="http://sourceforge.net/projects/concretecms/" target="_blank">http://sourceforge.net/projects/concretecms/</A>

concrete5 is a open source CMS implemented in PHP. It provides support to do In-context editing. File manager manages the images and documents which could be used throughout the site. Every page in a concrete5 site is part of one unified hierarchy called site tree. It provides support for User management, full text search, Page versions and lot more.

concrete5 - CMS built for Geeks

Croogo is a content management system, built on top of CakePHP framework. It provides support to Create pages, Taxonomy, WYSIWYG Editor, Threaded comments, Email notification, Spam protection, Search engine friendly URLs, File Manager, Users and Group administration, File Manager, Custom fields and lot more.

Croogo - Content Management System built on CakePHP framework

The goal of Glav.in is to provide the most simplistic CMS experience possible. It is not intended for large, multifaceted websites - it just ain't got the juice. Glav.in is for simple, informational websites. Maybe a site for a local barber shop? Perhaps even a site for your cat? It does not requires database, all your data will be stored as JSON files.

Glav.in - A Simple CMS

PropertyWebBuilder is a toolkit for creating multi-lingual and mobile friendly real estate websites. Out of the box you get a fully functional website that allows you to manage properties available for sale or rent through the intuitive admin panel. It comes with great search functionality which allows users to search for properties by multiple criteria. The look and feel can be modified by adding themes and adjusting colours, fonts, images etc

PropertyWebBuilder -  The ultimate Ruby on Rails engine for creating real estate websites

October is a Content Management System (CMS) and web platform whose sole purpose is to make your development workflow simple again. October's mission is to show the world that web development is not rocket science. Pages, layouts and partials are just files, one file per template. This makes the website themes completely manageable with Content Version Systems like Git or SVN.

October - Content Management System (CMS) and Web Platform

Simple, beautiful publishing. Postleaf is a beautifully designed open source blogging platform built for the modern publisher. It has a minimal admin panel, Inline WYSIWYG Editing, Semantic Markup and lot more.

Postleaf - Simple, beautiful publishing with Node.js.

Pier is a content management system that is light, flexible and free. It aims at allowing users to manage their content from the browser. The central concept in Pier is the one of Structure. For example, the page is a structure. The blog is also a structure, A file is also a structure. Commands can be executed on a Structure. For example, a Structure can be edited, and once in edit mode, you can use the Pier syntax. In the original setup the commands appear in the footer, and are accessible after logging in. To make life easier, Pier also offers access to commands via Browser Keybindings. Any Structure can be Viewed. The default View is the one that renders the structure for normal usage. Another example, is the Browse View which offers a file system like view on the Pier structures. Any Structure has an environment which defines the template. To set the environment to be a different page use the Settings command. To edit the environment use the Edit Design command. A Structure can contain Widgets. For example, the environment of this page contains a menu widget on top, and a widget that enumerates the children of the current sturcture to the right. The seaside project website <A HREF="http://www.seaside.st/" target="_blank">http://www.seaside.st/</A> is powered by Pier CMS.

Pier is a content management system that is light, flexible and free. It aims at allowing users to manage their content from the browser.

Pier - Content management system in Smalltalk

Cosmo is a single page app CMS built on AngularJS and PHP. It provides support for SEO friendly URL,  Custom WYSIWYG, Always mobile ready and lot more. With AngularJS being at the core of cosmo, every installation becomes a single page app. This allows for faster page loads, keeps the number of header requests down and the total website size smaller.

Cosmo - Single Page CMS built on PHP and Angular 

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