Ponzu is a powerful and efficient open-source HTTP server framework and CMS. It provides automatic, free, and secure HTTP/2 over TLS (certificates obtained via Let's Encrypt), a useful CMS and scaffolding to generate content editors, and a fast HTTP API on which to build modern applications.
Tina is an open-source site editing toolkit for React-based sites like Next.js & Gatsby to build content management directly into your website.
Open source Node.js Headless CMS to easily build customisable APIs
Simple Content Platform to manage any structured content.
A self-hosted headless and api-driven CMS.
Twill is an open source Laravel package that helps developers rapidly create a custom CMS that is beautiful, powerful, and flexible. By standardizing common functions without compromising developer control, Twill makes it easy to deliver a feature-rich admin console that focuses on modern publishing needs.
Grav is a modern open source flat-file CMS written in PHP
Known is a social learning platform.
Create your educational community and empower students to publish work, share feedback, and communicate across social media.
Sanity is a headless, real-time CMS where the front end is an open source React-based construction kit and the back end is a graph-oriented cloud datastore with a globally distributed CDN.
A stupidly simple & blazing fast, flat file CMS.
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. A simple and modular CMS that grows with you, with a precise and beautiful interface that comes as second nature.
An extremely simple, pluggable static site generator.
Bolt is a tool for Content Management, which strives to be as simple and straightforward as possible. It is quick to set up, easy to configure, uses elegant templates, and above all: It’s a joy to use. Bolt is created using modern open source libraries, and is best suited to build sites in HTML5 with modern markup.
From a technical perspective: Bolt is written in PHP, and uses either SQLite, MySQL or PostgreSQL as a database. It's built upon the Silex framework together with a number of Symfony components and other libraries. Bolt is released under the open source MIT-license.
A filesystem based wiki
Apostrophe is a content management system designed for maximum flexibility with a minimal learning curve.
The interface is ergonomic. All content editing is performed in context.
And it's open source, so you can contribute.
a simple CMS based on XML standards
Open Source CMS / Framework
GetSimple is an XML based, stand-a-alone, fully independant and lite Content Management System.
CMSmatrix lets you easily compare the features in over 1200 content management system products. Check the boxes next to the software you're interested in and click the Compare button. CMS comparison data is added/maintained by the vendors who develop the products. If a product is out of date or not included in the matrix, be sure to contact the vendor of the software and ask them to update or add their product listing on CMSmatrix.org.
Drupal is an open source content management platform powering millions of websites and applications. It’s built, used, and supported by an active and diverse community of people around the world.
Tiki Wiki CMS Groupware is a free and open source Wiki-based content management system and online office suite written primarily in PHP and distributed under the GNU Lesser General Public License (LGPL) license.