Astro
AI Coding Tool
Framer
AI Website BuilderAstro vs Framer
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
Example Websites
Astro websites
Framer websites
Astro
AI Coding Tool
Astro is a ai coding tool with an AI Score of 65/100 (AI-Assisted). Our detection engine uses 6 signal patterns to identify Astro-built sites.
Framer
AI Website Builder
Framer is a ai website builder with an AI Score of 90/100 (AI-Native). Our detection engine uses 13 signal patterns to identify Framer-built sites.
Platform Overviews
Astro
Astro is a modern web framework that pioneered the 'islands architecture' — shipping zero JavaScript by default and hydrating only the interactive components that need it, resulting in extremely fast initial page loads. Unlike traditional React or Vue frameworks, Astro components compile to pure HTML at build time, and interactive widgets (React, Vue, Svelte, or Solid components) are loaded as isolated islands when needed. It's the framework of choice for documentation sites, blogs, marketing pages, and any content-focused site where performance is paramount. Astro sites are identifiable through the astro-island custom element wrapping client-side interactive components, assets served from the _astro/ directory path with content-hash filenames, and the astro-island attribute in the DOM. The framework produces minimal JavaScript payloads, which makes Astro sites score exceptionally high on Core Web Vitals.
Framer
Framer is an AI-powered design and publishing platform that lets designers create highly interactive, production-ready websites without writing code. Built on React under the hood, Framer generates real component-based code that performs at a framework level — enabling smooth animations, scroll effects, and responsive layouts that look professionally designed. It's the go-to tool for SaaS marketing sites, designer portfolios, and startup landing pages, and is trusted by companies like Pitch, Linear, and Loom. Framer serves all site assets from its proprietary CDN (framerusercontent.com) and injects distinctive data-framer-* HTML attributes throughout the DOM, making it one of the most reliably detectable AI builders. Sites are hosted on Framer's global infrastructure with custom domain support, and pricing starts at $0 for a Framer subdomain with paid plans from $10/month.
Key Differences
- Astro is a AI Coding Tool while Framer is a AI Website Builder — they serve different primary use cases and aren't always direct alternatives.
- Framer scores higher on AI involvement (90/100 vs 65/100 for Astro), meaning it relies more heavily on AI for site generation and content creation.
- Our detection engine identifies Astro using 6 fingerprint patterns and Framer using 13 patterns — more signals generally means more reliable detection.
Which Should You Choose?
Choose Astro if…
- You prefer a ai coding tool solution
- You want more manual control over the final output
- Astro's detection fingerprint of 6 signals means your site is reliably identifiable
Choose Framer if…
- You need a ai website builder approach
- AI-assisted generation is a priority for your workflow
- Framer's ecosystem and community better match your team's existing workflow
Check Which Builder Powers a Site
Curious if a website uses Astro or Framer? Scan it now — free.
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