Discover the Tech Behind Any Website For Free

Instantly identify the technologies, frameworks, and platforms powering your favorite websites. Completely free, no account required.

Add to Chrome Learn More

Used by 250+ people on the Chrome Web Store

🔒 example-website.com

Framework

React, Next.js

Web Builder

Webflow

E-Commerce

Shopify

Powerful Detection Capabilities

StackSense identifies a wide range of technologies across multiple categories

🎨

Website Builders

Detect Webflow, Wix, Squarespace, Framer, Dorik, SwipePages, TypeDream, Unicorn Platform, and more.

🛒

E-Commerce Platforms

Identify Shopify, WooCommerce, BigCommerce, and Magento stores instantly.

📝

Content Management

Recognize WordPress, Ghost, HubSpot, Superblog, and other CMS platforms.

⚛️

JavaScript Frameworks

Detect React, Vue.js, Angular, Next.js, Gatsby, and Astro applications.

🔒

Privacy First

The extension runs all detection locally in your browser. No data collection or external requests.

⚡

Lightning Fast

Get instant results with a single click. No waiting, no loading screens.

How It Works

Simple, fast, and privacy-focused

1

Install the Extension

Add StackSense to your Chrome browser with a single click.

2

Visit Any Website

Browse the web as you normally would.

3

Click the Icon

Click the StackSense icon to see detected technologies.

4

View Results

Instantly see all frameworks, platforms, and tools used.

Coming soon

StackSense for Teams

A fast, low-cost BuiltWith alternative. Look up any site's stack, build lead lists by technology, and track changes, without the enterprise price tag.

🔎

Web App Lookups

Check the technology behind any domain from the web, no extension needed. Look up one site or paste a whole list.

🎯

Lead Lists by Technology

Find every site running a given platform, filter by category and country, and export to CSV for your sales team.

🔔

Change Tracking

Get alerts when a site you watch adds or drops a technology, like a prospect leaving WordPress or adding Shopify.

🔌

API Access

Pull technology data into your CRM or product with a simple REST API.

✨

AI Stack Summaries

Plain-language summaries of a site's stack, and lead search in natural language: "Shopify stores using Klaviyo in Germany."

👥

Shared Workspace

Share lists, saved searches, and alerts across your whole team.

Pricing

Free for individuals. Simple per-seat pricing for teams.

Individual

$0/forever

For developers, designers, and the curious.

  • Chrome extension
  • Unlimited one-click lookups
  • Builders, CMS, e-commerce, and frameworks
  • Runs locally, no account required
Add to Chrome
Coming soon

Teams

$29/seat/month

For sales, marketing, and research teams.

  • Everything in Individual
  • Web app and bulk lookups
  • Lead lists by technology with CSV export
  • Change tracking and alerts
  • API access
  • AI stack summaries and search
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Ready to Get Started?

Join developers and designers who use StackSense to understand the web better.

Add to Chrome - It's Free

No account required • No data collection