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).
SiteNOTE CMS web content management system on Microsoft Dot Net platform, is a simple and powerful solution to publish web site content, by CrossFactory. With SiteNOTE CMS, update or create web site contents, structured or not, while preserving a consistent look and feel.