Headless UI

Headless UI is an unstyled component library for either React.js or Vue.js from the same people that created Tailwind CSS.

JavaScript Framework902 eligible domainsheadlessui.dev

Broader database observations

Share of tracked domains0.4%

Avg confidence100%

30-day observation change+9

These statistics include detections outside the stricter public preview. Counts can exceed the qualifying domains above; they describe our coverage, not internet-wide market share.

Search database

What is Headless UI?

Headless UI is a javascript framework technology. Headless UI is an unstyled component library for either React.js or Vue.js from the same people that created Tailwind CSS.. Currently detected on 902 quality-eligible websites in the Glympt index.

Official website: headlessui.dev.

Recently detected on

Estimated countries across broader detections

Includes observations below the public country preview’s confidence and quality thresholds. These are website geography signals, not verified business locations.

AT · 11BR · 23CH · 10DE · 39ES · 15FR · 49GB · 30NL · 17SE · 16US · 148

Related technologies

jQuery

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.

119,736 domains

core-js

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

86,865 domains

Bootstrap

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

53,149 domains

jQuery Migrate

Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.

40,472 domains

Swiper

Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.

39,944 domains

React

JavaScript UI library commonly implied by modern React framework signals.

32,992 domains

jQuery UI

jQuery UI is a collection of GUI widgets, animated visual effects, and themes implemented with jQuery, Cascading Style Sheets, and HTML.

31,036 domains

LazySizes

LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.

16,051 domains

Co-detected in the broader database

Counts include broader stored detections, without the public preview’s quality filters. Co-detection describes an observation, not a recommendation or integration guarantee.

Node.js743 React723 Google Tag Manager703 Google Analytics667 Webpack657 Next.js632 Google Analytics 4605 Global Site Tag595 Cloudflare521 core-js377

Frequently asked questions

How does Glympt detect Headless UI?

By scanning headers, HTML, JS globals, meta tags, and cookies. Detection is automated and non-intrusive.

What does the score measure?

The average detector score for Headless UI is 100/100. It measures matching evidence, not independently verified accuracy.

Can I export?

Yes. Pro and Business plans include CSV export with full filtering.

Refresh rate?

Observation dates are shown on each report. Refresh timing varies with crawler capacity; you can request a fresh scan from the dashboard.

Does this measure Headless UI market growth?

Our database recorded a net change of 9 observations in 30 days. New coverage and rescans affect this number; it is not a measure of market growth or migrations.

What is "confidence"?

A 0–100 detector score based on matching signals. Stronger evidence increases the score, but false positives and missed technologies remain possible.