Ailiniyazi Maimaiti
Founder, AI Website Detector · 2026-04-02
Wappalyzer has been the go-to website technology detector for years. But its free tier has become increasingly limited — you get only a handful of lookups before hitting a paywall, and the browser extension has removed features from the free version. If you're looking for a Wappalyzer alternative that gives you more data, better AI detection, or a fully free experience, this guide covers the best options available in 2026.
Wappalyzer is still a solid tool, but there are real reasons to look elsewhere:
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AIWebsiteDetector.com is the top Wappalyzer alternative if you care about AI builder detection. It identifies whether a site was built with Framer, Webflow, Lovable, Bolt, Durable, v0, Replit, or 80+ other builders — and gives a confidence score with an AI probability verdict.
What it detects:
What makes it different: AIWebsiteDetector doesn't just list detected technologies — it gives you a Yes/Maybe/No verdict on whether the site was built with AI, along with the specific builder fingerprint and confidence score. No other tool does this.
Pricing: Completely free for single scans. API access available for developers.
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BuiltWith is the most comprehensive technology profiling database available. It crawls the entire web and maintains historical records of technology changes for millions of domains.
Strengths:
Weaknesses:
Best for: Enterprise competitive intelligence, lead generation agencies, and technology market researchers.
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WhatCMS.org is a free tool focused specifically on CMS detection. It's simple and accurate for identifying WordPress, Joomla, Drupal, Ghost, and other content management systems.
Strengths: Completely free, no account required, fast results. Weaknesses: CMS-focused only — won't detect JavaScript frameworks or AI builders.
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SimilarTech provides technology lookup with a focus on sales intelligence. You can find companies using specific technologies and export them as leads.
Pricing: Free tier available with limitations. Paid plans from ~$49/month.
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W3Techs (Web Technology Surveys) is a research platform that publishes statistics about web technology usage across the top 10 million sites. It's less of a per-site detection tool and more of a market intelligence resource.
Best for: Understanding industry trends, not individual site detection.
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| Tool | Free Tier | AI Builder Detection | Confidence Scores | API |
|------|-----------|---------------------|-------------------|-----|
| AIWebsiteDetector | Unlimited single scans | ✓ Yes | ✓ Yes | ✓ Developer API |
| Wappalyzer | Very limited | ✗ No | ✗ No | Paid only |
| BuiltWith | 1 lookup/day | ✗ No | ✗ No | $295/mo+ |
| WhatCMS | Unlimited | ✗ No | ✗ No | ✗ No |
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Yes. AIWebsiteDetector.com offers unlimited free single-site scans with no account required. It detects 80+ builders, frameworks, CMS, and e-commerce platforms, plus gives an AI probability score.
AIWebsiteDetector.com is the best free option for detecting modern web technologies including AI builders. For enterprise bulk lookups, BuiltWith has a limited free tier.
No. Wappalyzer doesn't specifically identify AI-native builders. It may detect underlying frameworks but won't tell you if a site was built with Lovable, Bolt, Durable, or v0. Use AIWebsiteDetector.com for AI builder detection.
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