What it detects
| Library | What it does |
|---|---|
| GSAP + ScrollTrigger | Timelines, tweens and scroll-scrubbed animation |
| Three.js | WebGL 3D scenes, models and shaders |
| Lenis | Smooth scrolling (how to spot it by hand) |
| Framer Motion | React animation and layout transitions |
| CSS keyframes | Native animations with no library at all |
Detection happens while the page runs in a real browser, which matters: a site can ship a library in its bundle and never use it. The longer explanation is in how to find out what animation library a website uses.
Other free tools
FAQ
How can I tell if a website uses GSAP?
Paste the URL above, or open the browser console and type window.gsap. Bundled sites often hide the global, so this tool watches the page run instead and reports the GSAP tweens and ScrollTriggers that actually played.
How do I know if a site uses Three.js?
A full-screen canvas is a hint. This tool checks the live WebGL context and reports the 3D library, shader count and models it loaded.
Why does this differ from Wappalyzer or BuiltWith?
Those mostly match file names and code patterns, which shows what is shipped. This tool reports what ran while the page was open, so a library that is bundled but unused is not mistaken for the one driving the effect.
Can it tell me the exact easing and timing?
The free lookup reports the libraries and counts. Connected to Claude or Cursor, Enrichr returns each tween’s duration, easing curve and ScrollTrigger settings.
Is it free?
Yes. Famous sites answer instantly from our gallery, and your first fresh lookup of any other site is free without an account.