htmx Has a Free API — Build Interactive Apps Without JavaScript

htmx is the HTML-over-the-wire library that lets you build modern, interactive web apps with just HTML attributes — no JavaScript framework needed. 35K+ GitHub stars and growing. Why htmx? No build step — just a script tag No JavaScript — HTML attributes for AJAX, WebSockets, SSE Works with any backend — Django, Rails, Express, Go, PHP 12KB gzipped — smaller than a React hello world Hypermedia-driven — the server returns HTML, not JSON Quick Start <script src= "https://unpkg.com/htmx.org@2.0.4" ></script> That's it. No npm install. No webpack. No bundler. Core Concepts <!-- Click button → GET /api/users → insert response into #user-list --> <button hx-get= "/api/users" hx-target= "#user-list" hx-swap= "innerHTML" > Load Users </button> <div id= "user-list" ></div> <!-- Submit form → POST /api/contacts → append to list --> <form hx-post= "/api/contacts" hx-target= "#contacts" hx-swap= "beforeend" > <input name= "name" placeholder= "Name" /> <input name= "email" placeholder= "Email" /> <