Fat-Free vs MEAN: What are the differences?

What is Fat-Free? PHP micro-framework designed to help you build dynamic and robust Web applications - fast. Fat-Free Framework makes it easy to build entire Web sites in a jiffy. With the same power and brevity as modern Javascript toolkits and libraries, F3 helps you write better-looking and more reliable PHP programs.

What is MEAN? A Simple, Scalable and Easy starting point for full stack javascript web development. MEAN (Mongo, Express, Angular, Node) is a boilerplate that provides a nice starting point for MongoDB, Node.js, Express, and AngularJS based applications. It is designed to give you a quick and organized way to start developing MEAN based web apps with useful modules like Mongoose and Passport pre-bundled and configured.

Fat-Free and MEAN can be categorized as "Frameworks (Full Stack)" tools.

"Open source" is the primary reason why developers consider Fat-Free over the competitors, whereas "Javascript" was stated as the key factor in picking MEAN.

Fat-Free and MEAN are both open source tools. It seems that MEAN with 11.8K GitHub stars and 3.57K forks on GitHub has more adoption than Fat-Free with 2.3K GitHub stars and 443 GitHub forks.