Wappalyzer Alternatives: Free Tech Stack Detector
Wappalyzer identifies a site’s tech stack, but it has moved to a paid lead-gen model and its browser extension tracks the sites you visit. A free, install-free alternative — the website technology detector: CMS, server, CDN and analytics in 10 seconds, right in the browser.
Free online tool — tech detect checker: instant results, no signup.
What Wappalyzer is and its downsides
Wappalyzer is a tech-stack detector (web app + browser extension). Downsides: the free web checker is limited and full data/API starts at $99/mo; the extension collects data on the sites you browse (a privacy concern); English only.
Enterno.io vs Wappalyzer — comparison
| Feature | Enterno.io | Wappalyzer |
|---|---|---|
| CMS / framework detection | ✅ | ✅ |
| No extension install | ✅ web | ⚠️ extension or paid API |
| Free, no registration | ✅ | ⚠️ limited |
| Technology database size | ⚠️ 90+ | ✅ 2500+ |
| Bulk analysis / lead-gen | ❌ | ✅ (paid) |
Where Wappalyzer wins
Honestly: Wappalyzer has the largest technology database (2500+) plus bulk-analysis and lead-generation tooling. For marketing analytics across thousands of sites it is unmatched — but those are paid features.
When to pick Enterno.io
- You just want to know what one site is built with — no extension to install;
- Privacy matters — a web check installs nothing in your browser;
- You want free, instant, no-signup access.
Pair it with the CMS detector and a page speed check.
Other Wappalyzer alternatives
- BuiltWith — deep profile + market share, but pricey;
- WhatCMS — narrow, CMS-only lookup;
- W3Techs — technology statistics, not single-site detection.
Learn more
Frequently Asked Questions
Is Wappalyzer free?
There is a limited free web checker; the extension is free but collects browsing data, while the API and bulk analysis are paid (from $99/mo). Enterno.io tech detection is free and install-free.
Do I need a browser extension?
Not for Enterno.io — the check runs on the web: enter a URL and see the stack. The Wappalyzer extension, by contrast, tracks every site you visit.
What technologies are detected?
CMS (WordPress, Tilda, etc.), web servers, CDNs, analytics, JS frameworks and more — 90+ technologies.
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