high power tools for HTML
NEWS: htmx finished 2nd in the 2023 JavaScript Rising Stars "Front-end Frameworks" category, just behind React (htmx is a library, btw) and #10 overall! Thank you to everyone who starred us!


htmx gives you access to AJAX, CSS Transitions, WebSockets and Server Sent Events directly in HTML, using attributes, so you can build modern user interfaces with the simplicity and power of hypertext

htmx is small (~14k min.gz’d), dependency-free, extendable, IE11 compatible & has reduced code base sizes by 67% when compared with react


By removing these constraints, htmx completes HTML as a hypertext

quick start

  <script src="https://unpkg.com/htmx.org@1.9.12"></script>
  <!-- have a button POST a click via AJAX -->
  <button hx-post="/clicked" hx-swap="outerHTML">
    Click Me

The hx-post and hx-swap attributes on this button tell htmx:

“When a user clicks on this button, issue an AJAX request to /clicked, and replace the entire button with the HTML response”

htmx is the successor to intercooler.js

Read the docs introduction for a more in-depth… introduction.


We are happy to announce the release of Hypermedia Systems, a book on how to build Hypermedia-Driven Applications using htmx & more:

hypermedia systems


htmx development can be supported via GitHub Sponsors

Thank you to all our generous supporters, including:

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