Website design library for inspiration

Animated UI components built for AI website builders.

21st.dev is a free AI-ready UI component library that helps developers, designers, and startups create professional websites without coding everything from scratch. People often search "animated UI library" or "best free web components," and 21st.dev provides both. It includes premium-grade animated sections like pricing tables, hero blocks, and navbars—plus AI prompts you can paste directly into builders like Cursor, Lovable, or Bolt. If you've searched "AI web design templates" or "modern UI components for SaaS," 21st.dev is built for that. It helps creators produce high-quality frontends faster and cheaper. Founders, indie hackers, and developers use it to launch visually polished products with ease.

- Copy-paste AI-ready UI prompts - Build landing pages faster - Prototype SaaS UIs - Learn motion design best practices

**Pros:** - Free - High-quality design - Works with AI builders

**Cons:** - Smaller catalog than paid UI kits - Some manual styling needed

**What is 21st.dev?** A library of animated UI components for AI web builders.

**Does 21st.dev integrate with Cursor or Lovable?** Yes, via ready-made prompts.

**Is 21st.dev free to use?** Yes.

**Who uses 21st.dev most?** Developers, AI builders, and startup founders.

Pricing: $0