Can we rebuild Wappalyzer - Technology profiler?
Build a Chrome extension like Wappalyzer - Technology profiler — a Wappalyzer - Technology profiler alternative you own.
You can build your own Wappalyzer - Technology profiler Chrome extension in a single session. Creating a lightweight alternative lets you inspect website tech stacks directly in your browser without transmitting your browsing activity or hitting paid paywalls for data exports.
The listing record
| Name | Wappalyzer - Technology profiler |
| Store rating | 4.6 / 5 · 2K ratings |
| Users | 3M+ |
| Store listing | Chrome Web Store ↗ |
| Analyzed | 3 September 2026 |
What Wappalyzer - Technology profiler does
Wappalyzer is a technology profiler that shows you what websites are built with. Find out what CMS a website is using, as well as any framework, ecommerce platform, JavaScript libraries and many more. Wappalyzer is more than a CMS detector or framework detector: it uncovers more than a thousand technologies in dozens of categories such as programming languages, analytics, marketing tools, payment processors, CRM, CDN and others. Use the export button to save results to CSV. The extension has a toggle for light and dark mode. Install Wappalyzer for Chrome to find out the technologies used on websites you visit at glance.
What the store says
★ 4.6 from 2K ratings · 3M users
Pulled live from the Chrome Web Store listing at analysis time.
Can PlugThis rebuild Wappalyzer - Technology profiler?
“It's just regex matching on HTML source, global JS variables, and HTTP headers.”
Wappalyzer identifies technologies by inspecting the DOM, meta tags, script URLs, response headers, and global JavaScript window variables. You can easily bundle a library of detection patterns into a content script and surface the results instantly in a popup or side panel.
Why build your own Wappalyzer - Technology profiler alternative
- Zero telemetry or browsing data sent to third parties
- Add custom technology rules for internal tools or niche libraries
- Direct export to custom Webhooks, Notion, or Supabase instead of raw CSV
- No upsells for lead generation or paid API lookups
What it costs vs what you'd save
The original: The listing does not specify full pricing details for its underlying premium services.
Your version: Building your own provides total privacy on the sites you inspect, zero tracking, and the ability to define your own custom detection signatures for internal stacks.
The starter prompt
Build a tech stack profiler Chrome extension. The extension should inject a content script to inspect page HTML, meta tags, script sources, and global window objects against a library of technology fingerprints (CMS, JS frameworks, analytics, CDN). Display detected technologies grouped by category in a clean popup, with an option to export the results to CSV.Build it with PlugThis →
Features you could add that Wappalyzer - Technology profiler doesn't have
Because you own the code, these are a follow-up prompt away — tap one to add it to the prompt above.
- One-click CRM/Notion logger — Automatically push the detected tech stack directly to your Notion lead database or CRM.
- Custom Fingerprint Creator — Add new detection signatures on the fly from the popup interface when you spot an uncataloged tool.
Questions about rebuilding Wappalyzer - Technology profiler
How does tech stack detection actually work?
A content script checks the DOM for specific `<meta>` tags, script `src` attributes, known global JavaScript variables on `window`, and response headers using `chrome.webRequest` or `fetch`.
Where do I get the technology signatures?
You can bundle open-source technology pattern sets or curate a focused list of the top CMS, framework, analytics, and library signatures.
Can it export detected technologies?
Yes, you can easily export the detected stack to CSV, JSON, or sync it directly into your own Supabase database.
How to build it yourself
- 1Open PlugThis and start a new build
Head to PlugThis and start a new Chrome extension. You're describing a Wappalyzer - Technology profiler alternative you'll own outright — no store subscription.
- 2Paste the starter prompt
Paste the starter prompt above. PlugThis expands it into a full Manifest V3 extension — popup, content scripts, and service worker included.
- 3Review, tweak, and load it
Review the generated code, ask for tweaks in plain English, then download and load the unpacked extension in Chrome to try it.
- 4Publish it (optional)
When you're happy, publish your Wappalyzer - Technology profiler alternative to the Chrome Web Store — or just keep it as a private tool for yourself.
Build your own Wappalyzer - Technology profiler alternative
Describe it in plain English. PlugThis generates the full Manifest V3 Chrome extension in about two minutes.
Build it with PlugThis →More teardowns
We run the same teardown on any Chrome extension — what it does, whether a self-built alternative holds up, and the prompt to make one. Tear down another extension, or see the extensions we've actually rebuilt and filmed — real build times, real prompts, real recordings.
Sources & verification
- All facts pulled live from the Chrome Web Store listing ↗.
- The verdict is drafted by the PlugThis teardown engine — an opinion about buildability, not affiliation with Wappalyzer - Technology profiler.
- Written by PlugThis, which builds Chrome extensions from plain-English prompts.
Published and last updated 3 September 2026. Figures reflect the Chrome Web Store listing on that date and may have changed since.