Radiant is described as 'CMS' and is a CMS Tool in the Development category. There are more than 100 alternatives to Radiant for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Linux, Windows and Mac. The best alternative is WordPress, which is both free and Open Source. Other great apps like Radiant are Ghost (Free Personal, Open Source), Drupal (Freemium, Open Source), Grav (Free, Open Source) and Joomla (Free, Open Source).
A headless CMS that manages your content, not your workflow. Directus is an API-driven content management framework for custom databases. It decouples content for use in apps, websites, or any other data-driven projects. Core Principles
SPIP is a publishing system for the Internet in which great importance is attached to collaborative working, to multilingual environments, and to simplicity of use for web authors. It is free software, distributed under the GNU/GPL licence.
Web Start Today is the small business owner’s ticket to Internet success. With our easy-to-use Website Builder, hands-on business owners can create and customize a feature-rich website in few easy steps and go live the same day for free.
ORCHID is a tool that allows you to quickly write simple but powerful websites and applications. Provided as a package for Laravel, you can easily integrate it as a third-party component using Composer.
FlatPress is an open-source standard-compliant multi-lingual extensible blogging engine which does not require a DataBase Management System to work. You don’t need MySQL because FlatPress stores all of its content on text files.