Joomla! vs ProcessWire: What are the differences?
Developers describe Joomla! as "A content management system helping both novice users and expert developers to create powerful websites and applications". Joomla is a simple and powerful web server application and it requires a server with PHP and either MySQL, PostgreSQL, or SQL Server to run it. On the other hand, ProcessWire is detailed as "CMS with a jQuery inspired content API". ProcessWire is an open source content management system (CMS) and web application framework aimed at the needs of designers, developers and their clients. ProcessWire gives you more control over your fields, templates and markup than other platforms, and provides a powerful template system that works the way you do.
Joomla! and ProcessWire can be categorized as "Self-Hosted Blogging / CMS" tools.
"Powerful extension architecture " is the primary reason why developers consider Joomla! over the competitors, whereas "Superb api" was stated as the key factor in picking ProcessWire.
Joomla! and ProcessWire are both open source tools. It seems that Joomla! with 3.29K GitHub stars and 2.88K forks on GitHub has more adoption than ProcessWire with 748 GitHub stars and 226 GitHub forks.