Intercooler.js is a lightweight JavaScript library that enables developers to add AJAX functionality to their web applications with minimal effort. Inspired by HTML’s simplicity, it allows the use of HTML attributes to handle dynamic updates instead of writing extensive JavaScript code. This library is ideal for developers who want the power of AJAX without diving into complex frameworks like React or Angular.

Note: While Intercooler.js is still supported, its successor, htmx, offers additional features and enhanced browser capabilities.