Plone is described as 'Open source content management system based on the Zope application server, written in python. Its known to be powerful, reliable, secure and easy to use. Plone excels when compared to other content-management systems in standards conformance, access control' and is a popular CMS tool in the development category. There are more than 100 alternatives to Plone for a variety of platforms, including Web-based, Self-Hosted, Windows, Linux and Mac apps. The best Plone alternative is WordPress, which is both free and Open Source. Other great apps like Plone are Drupal, Joomla, EmDash CMS and Directus.
Apostrophe is a powerful website builder platform built on an enterprise open source CMS, offering in-context live editing, visual design tools, and multisite enablement in a full stack JS environment.
United States
SilverStripe is a free and open source Content Management System and Framework for creating, maintaining websites and web applications.
New Zealand
A comprehensive platform aiding photographers, designers, and artists to easily build portfolio websites, manage clients, sell products, and publish blogs without any coding. It offers a drag-and-drop interface, customizable themes, fast hosting, and affordable pricing, making online presence management effortless.
India
A web-based solution for sharing know-how: work instructions, procedures, knowledge base, product support, enterprise wiki.
France
EU
Portal CMS is a free and open source content management system with a powerful integrated page builder built in .NET MVC.
Tiki Wiki CMS Groupware is a full-featured, web-based, multilingual (40+ languages), tightly integrated, all-in-one Wiki+CMS+Groupware, Free Source Software (GNU/LGPL), using PHP + Smarty, MySQL, Zend Framework, jQuery and Bootstrap.
Canada
Open-source CMS leveraging Golang for high performance; features decoupled modules for integration, inspired by major platforms, offering versatility for industries from ecommerce to events, ensuring flexibility, scalability, and bespoke solutions with community support.
India
ImpressPages is a PHP framework with admin panel. A new MVC engine is under the hood so you can customize ImpressPages in no time. Write your own plugins and themes to suit your and customers’ needs best.
A new medium for your ideas—augment your thinking with a text editor designed for structuring lists. Side-by-side views allow 3 modes of thinking.
United States
Umbraco is a fully-featured open source content management system with the flexibility to run anything from small campaign or brochure sites right through to complex applications for Fortune 500's and some of the largest media sites in the world.
Symphony is an XSLT-powered open source content management system
It's 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-pack.
Quanta is an open source, PHP-based Content Management System that doesn't use a database, thought for the development of next-generation web applications.
Denmark
Italy