WordPress is a free and open source content management system (CMS) based on PHP and MySQL. It is the most widely used CMS software in the world, and as of May 2019, it powers more than 30% of the top 10 million websites and has an estimated 60% market share of all websites built using a CMS.
Joomla! is a free and open-source content management system (CMS) for publishing web content. Over the years Joomla! has won several awards. It is built on a model–view–controller web application framework that can be used independently of the CMS that allows you to build powerful online applications.
Drupal is content management software(CMS). It’s used to make many of the websites and applications you use every day. Drupal has great standard features, like easy content authoring, reliable performance, and excellent security. But what sets it apart is its flexibility; modularity is one of its core principles.
Magento is an ecommerce platform built on open source technology which provides online merchants with a flexible shopping cart system, as well as control over the look, content and functionality of their online store. Magento offers powerful marketing, search engine optimization, and catalog-management tools.