JavaScript Framework Detector

Find out which JavaScript framework powers a website. Laikastack detects React, Next.js, Vue, Nuxt, Angular, Svelte and the libraries built on top of them.

What this tool detects

The front-end framework
Meta-frameworks (Next.js, Nuxt, Astro, Remix)
UI libraries
Bundlers and build signatures
Supporting libraries such as jQuery

How to use it

1Enter the website URL.
2We inspect the rendered DOM, script bundles and runtime markers.
3See the framework and supporting libraries.

Frequently asked questions

Can it detect Next.js vs plain React?

Yes – meta-frameworks leave distinct build and routing signatures.

Why does a site show no framework?

Many sites are server-rendered HTML with no JS framework – that's a valid result.

Is it free?

Yes, no signup needed.