BuiltWith is a web technology profiler tool that helps you find out what websites are built with.
Free version available, with paid plans starting at $295/month
Best W3Techs Alternatives ranked by AI · updated Aug 2026
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W3Techs publishes usage statistics and lookup data for web technologies such as server software, content management systems, JavaScript libraries, and hosting providers. It is useful to developers, researchers, and technology strategists comparing adoption across the web.
Top 6 W3Techs alternatives
Wappalyzer is a browser extension that identifies the technologies used on websites. It detects content management systems, eCommerce platforms, web servers, JavaScript...
WhatRuns is a browser extension that helps you identify technologies used on websites.
Free with premium options
WebTechSurvey is an online service for identifying the technologies used by websites, such as content management systems, frameworks, analytics tools, and hosting...
Pros
- Provides quick technology-stack lookups without requiring software installation
- Useful for basic competitor and website technology research
- Covers multiple categories of web technologies
Cons
- Less extensive company and traffic intelligence than BuiltWith or SimilarTech
- May provide fewer browser extensions and workflow integrations than Wappalyzer
- Technology detection depth and update frequency may vary by website
StackDetect is a website technology profiler that identifies frameworks, platforms, analytics tools, hosting services, and other technologies used by a domain. It...
Pros
- Provides a focused way to inspect website technology stacks
- Useful for quick prospect and competitor research
- Simpler workflow than enterprise-focused technology intelligence platforms
Cons
- Less extensive historical and company-level data than BuiltWith
- Smaller ecosystem and dataset than Wappalyzer
- Limited public information about APIs, bulk lookups, and advanced reporting
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