Free React UI Library: Copy Paste Components for Next.js and Vite

UI Library · Free guide
Free React UI library with dark premium components on TetraKits

Looking for a free React UI library you can paste into a real project today? TetraKits UI ships 68+ React and Tailwind components with live previews, TypeScript source, and copy buttons. No account, no CLI login, and no design-system lock-in.

Why a free React UI library still matters in 2026

Most teams do not need another npm package with 200 tokens and a 40-minute setup guide. They need a hero section, a footer, a pricing table, and a CTA block that look polished on mobile and desktop. TetraKits UI focuses on that workflow: find a block, copy the TSX, install the one or two dependencies listed on the page, and ship.

The library sits next to TetraKits free tools (QR, PDF, calculators) on the same site, so you can grab utilities for content and UI blocks for the product surface in one place.

What you get on TetraKits UI

  • 68+ components across heroes, footers, features, buttons, backgrounds, announcements, CTAs, cards, and pricing
  • Live previews with desktop and mobile toggles on every component page
  • Copy-ready TypeScript formatted for Next.js App Router, Vite, and Cursor workflows
  • Clear install lines such as npm install framer-motion or npm install gsap
  • AI prompt tab with placement instructions and full source for coding agents
  • SEO-friendly docs per component so you can share direct links with your team

Quick start in 3 steps

  1. Visit the TetraKits UI hub and pick a category. Footers and features are popular starting points.
  2. Open a component, read the dependency list, and run the install command in your app.
  3. Copy the Source tab (or the AI Prompt tab), paste into your repo, and adjust copy and colors to match your brand.

That is the full loop. No registry config, no theme provider required unless the component already uses one (most are plain React + Tailwind).

  • Motion Footer (GSAP): curtain reveal, magnetic pills, marquee, and aurora grid
  • Feature sections: dark bento grids and split layouts in a 21st.dev-style palette
  • Hero sections: aurora SaaS and minimal startup headers
  • Buttons: rainbow pill, shiny CTA, and interactive hover arrow variants
  • Backgrounds: animated grids, starfields, and aurora mesh for hero backdrops

Each category page shows every variant with a thumbnail preview so you can compare before opening the detail view.

Frequently asked questions

Is this library really free?

Yes. Browse and copy components without payment or signup. Check each component's license notes if you redistribute source commercially.

Does it work with Next.js 14+ and Vite?

Yes. Components are client-side React with Tailwind classes. Add "use client" in Next.js when the block uses hooks, motion, or browser APIs.

Do I need Tailwind already configured?

Yes. Components assume Tailwind CSS is set up in your project. Utility class names are standard Tailwind v3 syntax.

Can I use these with Cursor or Copilot?

Yes. Open the AI Prompt tab on any component page. It includes install steps, where to place the block, and the full TSX body.

Where is the full component list?

The UI hub lists all nine categories. Use the sidebar search on any UI page to filter by name or keyword.