Shiny
Shiny is an R package for building interactive web applications directly from R, without requiring knowledge of HTML, CSS, or JavaScript. It enables data scientists and analysts to create dashboards, visualizations, and tools that allow users to explore data through dynamic inputs and outputs. The framework uses a reactive programming model to automatically update outputs when inputs change, making it ideal for data-driven applications.
Developers should learn Shiny when they need to create interactive data applications or dashboards for sharing R analyses with non-technical stakeholders, such as in business intelligence, research, or educational contexts. It is particularly useful for prototyping data tools quickly, embedding statistical models into user-friendly interfaces, or deploying internal reporting systems where R is the primary analysis language.