HTMX vs React: A Comparative Overview of Modern Front‑End Libraries

HTMX’s ultimate goal is to let developers achieve modern browser‑level interactivity directly in HTML without writing JavaScript . Although it debuted at the end of 2020, it quickly attracted community attention.

In the 2023 “JavaScript Rising Stars” ranking, HTMX placed second in the “Front‑End Framework” category, just behind React.

HTMX has also gathered more than 20k stars on GitHub, prompting a detailed comparison with React.

Simple Comparison

HTMX

React

Developer

Big Sky Software

Meta

Open source

✅

✅

GitHub Stars

29k+

218k+

File size

2.9 kB

6.4 kB

Syntax

Based on

HTML

with custom attributes

Based on

JSX

, an extension of

JavaScript

Goal

Add modern interactivity directly in

HTML

Provide a full‑featured component‑based

JavaScript

UI library

Learning curve

Smooth

Steep

Features

AJAX requests and a few auxiliary features

Composability, one‑way data binding, state management, Hooks, etc.

Performance

Excellent

Good, especially for large‑scale or complex web apps

Integration

Can be embedded into any existing HTML page

Can be embedded but primarily used in JavaScript‑centric projects

Community

Small but growing

Largest in the market

Ecosystem

Small

Very rich

From jQuery to Modern Web Frameworks

In the early days of web development, developers relied on jQuery for AJAX, DOM manipulation, and event handling. As applications grew more structured and scalable, frameworks such as Angular, React, and Vue emerged and changed the landscape.

React introduced a component‑based architecture, declarative UI, and one‑way data flow, making it the preferred solution for dynamic, responsive web applications.

Moving from Full‑Stack Frameworks to HTMX

While Angular, Vue, and React excel at building structured applications, their complexity can be a burden for developers seeking simplicity. HTMX offers a lightweight alternative that brings modern interactivity to HTML while retaining the simplicity of jQuery.

HTMX extends HTML with custom attributes that trigger AJAX requests, WebSocket connections, and server‑sent events without any JavaScript code.

HTMX: A Modern Interaction Method

HTMX is a dependency‑free, extensible front‑end library that enables direct access to modern browser features from HTML . It allows developers to handle AJAX , CSS animations, WebSockets , and server‑sent events directly within HTML markup.

Below are core HTMX concepts and examples.

AJAX Request Triggers

HTMX can send AJAX requests directly from HTML using attributes such as hx-get , hx-post , hx-put , hx-patch , and hx-delete . The request is normally triggered by the element’s natural event (e.g., change on <input> , submit on <form> , or click on other elements). The hx-trigger attribute can customize this behavior.

<div hx-get="/users">
Hello HTMX
</div>

This tells the browser to send a GET request to /users when the <div> is clicked and replace the element’s content with the server response.

Query Parameters and Request Body

For GET requests, query parameters must be added to the URL or overridden with hx-params="*" . For non‑GET requests, HTMX automatically includes the values of form inputs (or the nearest <form> ) in the request body. The hx-include attribute can add values from other elements.

<div hx-get="/example" hx-params="*">
Hello HTMX
</div>

<div>
<button hx-post="/register" hx-include="[name='email']">
Register!
</button>
Email:
<input name="email" type="email"/>
</div>

Developers can filter parameters with hx-params or programmatically modify the request via the htmx:configRequest event.

document.body.addEventListener('htmx:configRequest', function(evt) {
    evt.detail.parameters['auth_token'] = getAuthToken(); // add a new parameter
});

AJAX Result Handling

HTMX replaces the triggering element’s inner HTML with the server’s response. The hx-swap attribute controls how the response is inserted (e.g., innerHTML , outerHTML , beforebegin , afterend , delete , etc.), while hx-target specifies a CSS selector for the element to be swapped.

<button hx-post="/tasks" hx-swap=".todo-list" hx-target="afterend">
    Add task
</button>

This instructs the browser to POST to /tasks and append the returned HTML after the element with class .todo-list .

HTMX vs React

Both libraries can coexist in the same page, but they serve different needs.

Syntax

HTMX extends HTML with attributes like hx-get , keeping markup concise and readable. React uses JSX, a JavaScript‑based syntax for defining reusable components.

<div hx-get="/hello-world">
Hello HTMX
</div>

import React, { useState } from "react";

export default function HelloWorldComponent() {
  const [responseData, setResponseData] = useState(null);
  const handleClick = () => {
    fetch("/hello-world")
      .then(response => response.text())
      .then(data => setResponseData(data));
  };
  return (
{responseData ? <> {responseData}  : "Hello HTMX"}
);
}

Learning Curve

HTMX has a smooth learning curve because it builds on standard HTML. React’s learning curve is steeper due to concepts such as SPA, virtual DOM, state management, and JSX.

Feature Set

HTMX focuses on enabling AJAX, WebSocket, and server‑sent events directly in HTML with minimal overhead. React offers a rich ecosystem: component reuse, state management, hooks, CSS‑in‑JS, server‑side rendering, and a vast library ecosystem.

Performance

HTMX’s lightweight nature yields fast initial rendering for simple interactions. React’s virtual DOM and diffing algorithm provide efficient UI updates for large, complex applications, though they involve more JavaScript payload.

Integration

HTMX can be dropped into any HTML page and works with back‑ends that return raw HTML (Node.js, Django, Laravel, Spring Boot, Flask, etc.). React can also be integrated, but it typically requires a JavaScript‑centric build pipeline.

Community & Ecosystem

HTMX is relatively new (first released in 2020) and has a smaller community and fewer third‑party extensions (≈35 npm packages). React, by contrast, has a massive community, over 218k GitHub stars, and thousands of libraries.

Pros & Cons

HTMX Advantages :

Simple, HTML‑based syntax.

Few attributes needed for AJAX and DOM updates.

No JavaScript required for basic interactivity.

Easy to embed in existing pages.

Lightweight (a few KB).

HTMX Disadvantages :

Requires the back‑end to return raw HTML.

Relatively new, smaller ecosystem.

React Advantages :

Component‑based UI with JSX.

Powerful state management and extensive features.

World’s most popular front‑end library, backed by Meta.

Framework‑agnostic back‑end integration.

React Disadvantages :

Steep learning curve.

Harder to integrate into non‑JavaScript projects.

Which One to Choose?

If you need a complex, state‑driven application with reusable components, React is likely the better fit. For simple sites that need modest interactivity without the overhead of a full JavaScript framework, HTMX provides a lightweight and elegant solution.

Both libraries can coexist; you can embed HTMX attributes inside a React‑driven page or use React components alongside HTMX‑enhanced elements.

References:

https://htmx.org/

https://semaphoreci.com/blog/htmx-react

https://risingstars.js.org/2023/en#section-framework

https://react.dev/learn/writing-markup-with-jsx