What is Three.js?

UI Library

Three.js is an UI or JavaScript library: JavaScript 3D graphics library. Tech Stack Detector identifies Three.js on any website by analysing script URLs.

Three.js is an UI or JavaScript library (UI Library), detected on 6 websites in our index. See websites using Three.js ↓

CategoryUI Library
Official sitethreejs.org
Detection signals1 signal
In our index6 websites

How Tech Stack Detector detects Three.js

Three.js is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.

  • Script SrcThree.js script source

Websites using Three.js

Recently scanned websites where we detected Three.js. Open one to see its full technology stack.

levree.com10 technologies · 2 h ago trancedk.me5 technologies · 21 h ago boom.tech6 technologies · 3 d ago climentos.com5 technologies · 8 d ago webflow.com16 technologies · 8 d ago www.webflow.com16 technologies · 9 d ago

View all websites using Three.js

Often used with Three.js

Technologies most frequently detected alongside Three.js across scanned websites.

Google FontsFont5 sitesBootstrapUI Library4 sitescdnjsCDN4 sitesCloudflareCDN4 sitesSwiperUI Library3 sitesGoogle Tag ManagerAnalytics3 sitesjQueryUI Library3 sitesGSAPUI Library3 sites

Alternatives to Three.js

Other UI Library technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.

Tailwind CSSUI Library170 sitesBootstrapUI Library119 sitesjQueryUI Library78 sitesSwiperUI Library40 sitesGSAPUI Library14 sitesEmotionUI Library9 sitesstyled-componentsUI Library9 sitesAlpine.jsUI Library8 sitesChart.jsUI Library3 sitesVuetifyUI Library3 sitesAnt DesignUI Library2 sitesBulmaUI Library1 site

Compare Three.js

Side-by-side comparisons of Three.js with other UI Library technologies.

Three.js vs Tailwind CSS Three.js vs Bootstrap Three.js vs jQuery Three.js vs Swiper Three.js vs GSAP

Popular technologies

The technologies most often detected across all websites scanned on Tech Stack Detector.

CloudflareCDN247 sitesGoogle FontsFont215 sitesTailwind CSSUI Library170 sitesReactFramework165 sitesProgressive Web AppOther147 sitesPHPLanguage139 sitesNode.jsLanguage136 sitesNext.jsFramework124 sitesBootstrapUI Library119 sitesGoogle WorkspaceOther110 sites

Frequently asked questions

What is Three.js?

Three.js is an UI or JavaScript library: JavaScript 3D graphics library. Tech Stack Detector identifies Three.js on any website by analysing script URLs. Its official website is https://threejs.org.

How can I tell if a website uses Three.js?

Enter any URL into Tech Stack Detector and it reports whether Three.js is present, with a confidence score and the exact evidence it matched. Detection is based on script URLs. No login or crawling of the site is required.

How many websites use Three.js?

Three.js has been detected on 6 websites in the public Tech Stack Detector scan index. This reflects sites that visitors have analysed here, not global market share.

What are some alternatives to Three.js?

Other UI Library technologies Tech Stack Detector detects include Tailwind CSS, Bootstrap, jQuery, Swiper, GSAP and styled-components. You can compare any of them side by side with Three.js.

Data last updated October 20, 2026 · based on 618 recently scanned websites.