barba.js is an open-source library designed to help developers create fluid and smooth transitions between a website's pages. By eliminating the traditional "hard refresh" when clicking a link, it allows for a more "app-like" user experience on the web.

The main features of this tool include:

• Seamless Page Transitions: Its core purpose is to enable "badass," fluid, and smooth animations as users navigate between different sections of a site.

• Highly Accessible: The tool is designed to be "User friendly" and "Easy peasy" to implement, making it accessible even for developers who are new to complex animations.

• Intelligent and Futureproof: It is described as a "Smart" and "Futureproof" solution, built to handle modern web development needs efficiently.

• Extensible Architecture: The library is "Extensible," allowing developers to build upon it and customize transitions to fit the specific aesthetic of any project.

• Community-Driven Development: As an open-source project hosted on Github, it benefits from a "Community" that collaborates on its improvement and support.