Find accounts by the technologies they use - Wappalyzer
Wappalyzer helps sales and GTM teams build technographic prospect lists, enrich CRM records, and monitor competitor installs with data from millions of websites.
Categories:
Wappalyzer detects technologies used on websites to help sales and GTM teams generate leads, enrich data, and monitor competitors.
🚀 Overview
Wappalyzer is a powerful technology profiler that scans websites to identify CMS, frameworks, eCommerce platforms, servers, analytics tools, and more. Originally launched as a popular browser extension, it has evolved into a comprehensive SaaS platform with APIs, CRM integrations, and mobile apps.
It solves the problem of time-consuming manual research to discover what technologies companies use, enabling faster lead qualification, personalized outreach, technographic segmentation, competitor tracking, and market research.
Built for sales teams, go-to-market (GTM) professionals, marketers, security researchers, and developers who need insights into website tech stacks.
The project was created to make website technology detection accessible and actionable, starting from a simple browser tool used by millions.
✨ Key Features
- Website profiling: Instantly reveal tech stacks, company details, and contacts for any URL.
- Lead generation: Build prospect lists filtered by technologies, keywords, traffic, geography, and export with emails.
- Website monitoring: Get alerts on tech changes for competitors, prospects, or customers.
- Browser extensions: Available for Chrome, Firefox, Edge, Safari to detect tech on visited sites.
- API & integrations: Real-time lookups, CRM sync (HubSpot, Salesforce), Zapier, email verification.
- Optional: Market share reports, custom reports, security reconnaissance.
🛠 Tech Stack
- Frontend: JavaScript, React (inferred from extensions and modern UI)
- Backend: Node.js (based on GitHub repos and API nature)
- Database: Not publicly specified
- Auth: Custom / Subscription-based
- Hosting: Cloudflare (common for performance), self-hosted SaaS
👥 Who Is This For?
This project is useful for:
- Developers who want to analyze tech stacks of sites they visit
- Sales teams looking for technographic leads and enrichment
- Marketers building competitive intelligence and market research
- GTM teams monitoring tech migrations and trends
📸 Screenshots / Demo
- Live demo: https://www.wappalyzer.com/lookup
- GitHub: https://github.com/wappalyzer
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium — Free tier with 50 monthly lookups and sample lists; paid plans start at $250/month for Pro.
Is the source code available?
Partially — Some components like MCP server on GitHub (MIT license); core SaaS and detection engine proprietary.
Can I contribute?
Limited; check GitHub repos for issues/PRs on open components, or provide feedback via contact form.
📬 Contact & Links
- Website: https://www.wappalyzer.com
- GitHub: https://github.com/wappalyzer
- Twitter/X: https://x.com/Wappalyzer
- Email: Contact form on website
Built with ❤️ and kept warm on WarmIndex.
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