Ruby (IRB) for Chrome provides a unique interactive shell experience for users interested in Ruby programming. Built using Native Client, this tool showcases Rubycapabilities within the Chrome browser, allowing users to execute Ruby commands seamlessly. This free add-on enhances the browser’s functionality by offering a platform for real-time coding and testing of Ruby scripts.

Targeted at developers and programmers, Ruby (IRB) serves as a proof of concept for running Ruby in a web environment. While it lacks support for dynamic shared objects (DSOs) and the readline feature due to its reliance on newlib, it remains a valuable tool for exploring Ruby's syntax and functionalities directly from the browser. Users can access the source code via the naclports project for further customization and development.