Rails and Merb are MVC web application frameworks written in and for Ruby.
Both the framework is similar in terms of their directory structures and concepts.

Now, We have to compare Rails and Merb. and findout which one is best?

1. Rails is not Modular based. As Merb is Modular.

2. Rails is focused on rapid development for the web programmer.
   Merb is focused on speed and extensibility.