htmx Has a Free API: Add AJAX, WebSockets, and SSE to HTML Without JavaScript

htmx lets you build modern interactive web applications using HTML attributes instead of JavaScript. It adds AJAX requests, CSS transitions, WebSockets, and Server-Sent Events directly in HTML. Why htmx Matters React, Vue, and Svelte require complex JavaScript build toolchains. htmx gives you the same interactivity with zero JavaScript — just HTML attributes. What you get for free: AJAX requests from any HTML element Partial page updates (swap HTML fragments) CSS transitions and animations WebSocket and SSE support Form validation and error handling History management (back/forward) 14KB gzipped, zero dependencies Quick Start <script src= "https://unpkg.com/htmx.org@2.0.0" ></script> <!-- Click button, load content into div --> <button hx-get= "/api/users" hx-target= "#user-list" hx-swap= "innerHTML" > Load Users </button> <div id= "user-list" ></div> <!-- Submit form without page reload --> <form hx-post= "/api/users" hx-target= "#result" hx-swap= "innerHTML" > <input name= "name" pla