Have you ever looked at a competitor’s website and wondered, “What tools are they using behind the scenes?” Whether it’s a unique live chat integration, a custom WordPress theme, or even the marketing automation platform powering their campaigns—understanding your competitor’s tech stack can give you a major edge.
Enter the world of technology profiling tools—tools that reveal the software, services, and frameworks behind any website.
BuiltWith has been a leader in this space for years, offering deep insights into the technologies websites use. However, it’s not without its downsides: high pricing, occasional data inaccuracies, and limited features for the cost. Fortunately, several modern alternatives have emerged—some free, some premium—offering powerful capabilities without breaking the bank.
Here are the top BuiltWith alternatives in 2025 to help you uncover website technologies for competitive research, lead generation, and beyond.
Why Use a Website Technology Profiler?
Before diving into the list, here’s why a tech lookup tool might be a game-changer for your business:
1. Lead Generation
Want to offer a better solution than what your prospect is currently using? These tools help you identify platforms or tools they rely on—like HubSpot or Shopify—so you can personalize your pitch and provide relevant alternatives or upgrades.
2. Market Research
Curious which payment processors are most common in your niche? Or whether your competitors are shifting from WordPress to Webflow? Profiling tools give you insight into trends across platforms, frameworks, and tools, so you can make informed tech choices.
3. Performance Optimization
A full breakdown of a competitor’s stack can show you where you’re falling behind. Are they using a faster CDN? A more advanced CMS? You’ll gain ideas for improving your own site.
4. Industry Awareness & Learning
Just want to know what’s new and trending? These tools are also great for staying up-to-date with popular libraries, services, and site structures in your space.
6 Best Alternatives to BuiltWith (2025 Edition)
1. Hunter TechLookup – Best Overall Alternative
Hunter is well known for its email outreach tools, and its new TechLookup platform brings the same ease and precision to website technology profiling.
Key Features:
- User-Friendly Interface: Clean and intuitive—ideal even for beginners.
- Custom Lists: Create and export targeted lists filtered by tech type, category, or popularity.
- Generous Free Plan: View up to 5,000 websites for free per technology. Paid plans unlock up to 50,000.
- Part of Hunter Ecosystem: Easily integrates with Hunter’s outreach tools for seamless lead gen.
Pros:
- Excellent accuracy and ease of use
- Very generous free plan for individuals and SMBs
- Backed by a trusted name in the sales and outreach space
Cons:
- More focused on outreach and list-building—less so on SEO or performance metrics
Best for: Outreach professionals and small teams looking for a precise and cost-effective profiling tool.
2. CRFT Lookup – Best Free All-in-One Website Analyzer
CRFT Lookup is a robust and completely free tool that analyzes not just technologies, but also performance, SEO, and metadata.
Key Features:
- Technology Detection: Covers 2,500+ technologies using a Wappalyzer-based engine.
- Performance Reports: Includes Google Lighthouse scoring for performance, SEO, and accessibility.
- Meta & Sitemap Previews: Shows how your site appears on search and social, plus visual sitemaps.
- Unlimited Free Scans: No signups, no paywall, just results.
Pros:
- Totally free with unlimited scans
- Combines tech profiling, SEO, and performance in one tool
- Easily shareable reports with a 30-day URL retention
Cons:
- No lead list building or export capabilities
- Doesn’t create new XML sitemaps—only visualizes existing ones
Best for: Developers, marketers, and SEOs who want free, detailed insights in one place.
3. Wappalyzer – Most Popular BuiltWith Competitor
A direct rival to BuiltWith, Wappalyzer offers rich profiling features, including alerts and keyword-based lead lists.
Key Features:
- Fast Tech Lookup: Scan a domain and get a full tech stack breakdown.
- Technology & Email Lists: Great for building lead gen funnels.
- Change Monitoring: Set alerts to track when a competitor updates their tech stack.
Pros:
- Strong reputation and wide adoption
- Combines tech profiling with sales and keyword research tools
Cons:
- Expensive: Free plan is limited, paid plans start at $99/month
- No browsing by tech category—you must search directly
Best for: Businesses willing to invest in advanced profiling + lead generation.
