Lovable
AI Website Builder
Bolt
AI Website BuilderLovable vs Bolt
Side-by-side comparison of detection signals, AI scores, and features. Use our free tool to check which one powers any website.
Side-by-Side Comparison
| | |
|---|---|---|
| Category | AI Website Builder | AI Website Builder |
| AI Score | 90/100 — AI-Native | 90/100 — AI-Native |
| Detection Signals | 23 patterns | 12 patterns |
| Script Detection | 5 patterns | 3 patterns |
| CDN Detection | 4 domains | 2 domains |
| Header Detection | 3 headers | 2 headers |
| Sites Detected | No data yet | No data yet |
| Best For | AI-generated websites & quick launchesTry Lovable → | AI-generated websites & quick launchesTry Bolt → |
| Official Website | Visit | Visit |
Example Websites
Lovable websites
Bolt websites
Lovable
AI Website Builder
Lovable is a ai website builder with an AI Score of 90/100 (AI-Native). Our detection engine uses 23 signal patterns to identify Lovable-built sites.
Bolt
AI Website Builder
Bolt is a ai website builder with an AI Score of 90/100 (AI-Native). Our detection engine uses 12 signal patterns to identify Bolt-built sites.
Platform Overviews
Lovable
Lovable (formerly GPT Engineer) is a full-stack AI application builder that creates complete React web applications — including frontend, backend logic, and Supabase database — from natural language prompts. Unlike website builders that produce marketing pages, Lovable builds interactive applications with user authentication, real-time data, and API integrations. It's used by startups and developers to rapidly prototype SaaS products, internal tools, and web apps that would otherwise require a development team. Lovable has surpassed 1 million users and powers thousands of production applications. Sites can be detected through requests to lovable-uploads.s3.amazonaws.com for stored files and *.lovable.app domains for hosted projects. Pricing starts free with a usage cap, and Pro plans begin at $20/month.
Bolt
Bolt.new is an AI-powered full-stack web application builder by StackBlitz that runs a complete Node.js environment directly in the browser using WebContainers technology. Unlike most AI builders that hide the generated code, Bolt gives developers full visibility and editability of every file — enabling installation of any npm package, use of any framework (React, Vue, Svelte, Astro), and deployment to any infrastructure. It's the preferred AI builder for developers who want AI-accelerated productivity without sacrificing code ownership or framework flexibility. Bolt-generated apps follow standard web development patterns and deploy instantly via one-click integrations with Netlify. Pricing starts with a free tier and scales to Pro from $20/month for heavier usage.
Key Differences
- Both Lovable and Bolt are classified as AI Website Builder tools, making them the most direct competitors in this comparison.
- Lovable scores higher on AI involvement (90/100 vs 90/100 for Bolt), meaning it relies more heavily on AI for site generation and content creation.
- Our detection engine identifies Lovable using 23 fingerprint patterns and Bolt using 12 patterns — more signals generally means more reliable detection.
- Lovable serves assets from
/lovable-uploads\.s3/iwhile Bolt uses/bolt\.host/i— making CDN domain analysis one of the most reliable ways to distinguish them.
Which Should You Choose?
Choose Lovable if…
- You prefer a ai website builder solution
- You want heavy AI involvement in the design process
- Lovable's detection fingerprint of 23 signals means your site is reliably identifiable
Choose Bolt if…
- You need a ai website builder approach
- AI-assisted generation is a priority for your workflow
- Bolt's ecosystem and community better match your team's existing workflow
Our Pick — Based on our detections
Lovable
The most frequently detected ai website builder in our scan database.
Check Which Builder Powers a Site
Curious if a website uses Lovable or Bolt? Scan it now — free.
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