htmx is a modern JavaScript library that allows you to access AJAX, CSS Transitions, WebSockets and Server-Sent Events directly in HTML, rather than using JavaScript. It enables developers to create dynamic and interactive web applications with minimal JavaScript code. The main advantage of htmx is that it simplifies the process of adding interactivity to web applications by leveraging the existing HTML structure and attributes. This makes it easier to build responsive and fast web applications while reducing the amount of JavaScript code needed, leading to cleaner, more maintainable codebases.
The library was created to extend the flaws of HTML in order to leverage HTML as the Hypermedia as the engine of application state (HATEOAS). Enabling HTML to perform not only GET and POST but also PUT, PATCH and DELETE on any HTML tag and any DOM event allows to create truely RESTful applications. This leads to a fundamentally different software architecture called Hypermedia-Driven Application Architecture in contrast to Single Page Applications widely assumed to be the best practice nowdays.
We're using htmx in production and are experimenting with it in other projects as well.