Developer tool · Free · No sign-up

Tech Stack Finder

Paste a URL to reveal the technologies a website runs on.

Detection is based on public HTML and HTTP headers and won't catch everything. Treat results as strong hints, not a definitive inventory.

About this tool

Tech Stack Finder reveals the technologies powering any public website. Paste a URL and it fetches the page, then inspects the HTML, meta tags and HTTP response headers for tell-tale signatures of front-end frameworks (React, Next.js, Vue, Angular, Svelte), content management systems (WordPress, Shopify, Wix, Webflow), JavaScript libraries, web servers, CDNs and analytics tools. It's a quick way to research competitors, evaluate vendors, or satisfy your curiosity.

Key features

Framework & CMS detection

Spots React, Next.js, Vue, WordPress, Shopify and many more.

Infra & analytics

Identifies web server, CDN/hosting and common analytics tags.

Evidence shown

Each result lists the signal it was detected from.

How to use it

1Paste the full website URL (for example https://example.com).
2Click Analyze.
3Review the detected technologies, grouped by category.
4Each result shows the evidence used to detect it.

Common use cases

Researching what a competitor's site is built with.
Vetting a vendor's technology choices.
Learning what stack powers a site you admire.

Frequently asked questions

How does detection work?

We fetch the page server-side and match its HTML, meta tags and HTTP headers against a library of technology signatures — similar in spirit to tools like Wappalyzer or BuiltWith.

Is detection always complete?

No tool catches everything. Sites behind logins, heavy bot protection, or aggressive build tools can hide their stack, so treat results as strong hints rather than a guarantee.

Which sites can I check?

Any publicly reachable http or https website. For security, internal, local and private network addresses are blocked.

Private and free. Most of our tools run entirely in your browser, so the data you enter isn't uploaded or stored. There's no sign-up, and there never will be — they're built by the Fusion Trail Solutions team to be genuinely useful.