Ruby is an object-oriented programming language that is general-purpose, interactive, and interpreted. Ruby’s code is so human-like and similar to English that even someone who doesn’t know how to program can understand it to some degree.
On the other hand, creating new applications with just Ruby, is a time-consuming job. As a result, a unique tool called Rails was developed to streamline the development process. Ruby on Rails is a web development system written in Ruby. It was designed to make web app programming simpler and to assist in the creation of websites of any complexity.
Ruby’s main objective is to make it easy to develop new high-performance projects. However, since Ruby, like any general-purpose programming language, is ideal for a wide variety of programming tasks, there is no definitive response as to what Ruby is used for. Each programming language and technology stack is created to address a specific issue. RoR may or may not be the best option for your web project, depending on the reason (but rather yes than no).