The best 21st alternatives

ui

shadcn-ui/ui

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

Choose ui if…

• you want the more widely starred option (127.3k)
• you want the more recently updated codebase
• you specifically need base-ui or components

Shares nextjs, react, shadcn, tailwindcss with 21st.

morphic

miurla/morphic

An AI-powered search engine with a generative UI

Choose morphic if…

• Apache License 2.0 suits your use better than MIT License
• you want the more widely starred option (9.3k)
• you want the more recently updated codebase
• you specifically need generative-ai or generative-ui

Shares nextjs, react, shadcn-ui, tailwindcss with 21st.

neobrutalism-components

ekmas/neobrutalism-components

A collection of neobrutalism-styled Tailwind components.

Choose neobrutalism-components if…

• you want the more recently updated codebase
• you specifically need neobrutalism or neobrutalism-components

Shares nextjs, react, shadcn, shadcn-ui with 21st.

canvas-ui

DavidHDev/canvas-ui

A library of creative canvas components. Real HTML with WebGL effects running over it. React, Vue, Svelte, vanilla.

Choose canvas-ui if…

• you want the more recently updated codebase
• you specifically need animation or canvas

Shares nextjs, react, shadcn, ui with 21st.

reui

keenthemes/reui

Design-forward shadcn kit for interfaces that stand out. 1000+ free patterns!

Choose reui if…

• you want the more recently updated codebase
• you specifically need base-ui or component-library

Shares nextjs, react, shadcn, shadcn-ui with 21st.

prompt-kit

ibelick/prompt-kit

Core building blocks for AI apps. High-quality, accessible, and customizable components for AI interfaces.

Choose prompt-kit if…

• you want the more recently updated codebase
• you specifically need ai or components

Shares nextjs, react, shadcn, shadcn-ui with 21st.

chanhdai.com

ncdai/chanhdai.com

A pixel-perfect dev portfolio and shadcn registry.

Choose chanhdai.com if…

• you prefer a smaller, narrower project to a large one
• you want the more recently updated codebase
• you specifically need base-ui or components

Shares nextjs, react, shadcn, shadcn-ui with 21st.

page-ui

PageAI-Pro/page-ui

📃 Landing page UI components for React & Next.js, built on top of TailwindCSS

Choose page-ui if…

• you prefer a smaller, narrower project to a large one
• you want the more recently updated codebase
• you specifically need ai or ai-website-builder

Shares nextjs, react, shadcn, shadcn-ui with 21st.

coss

cosscom/coss

coss.com/ui is the official design system of Cal.com

Choose coss if…

• GNU Affero General Public License v3.0 suits your use better than MIT License
• you prefer a smaller, narrower project to a large one
• you want the more recently updated codebase
• you specifically need base-ui or radix-ui

Shares nextjs, react, shadcn, shadcn-ui with 21st.

onlook

onlook-dev/onlook

The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI

Choose onlook if…

• Apache License 2.0 suits your use better than MIT License
• you want the more widely starred option (27.1k)
• you want the more recently updated codebase
• you specifically need ai or cursor

Shares nextjs, react, tailwindcss, ui with 21st.

ai-website-cloner-template

JCodesMore/ai-website-cloner-template

Clone any website with one command using AI coding agents

Choose ai-website-cloner-template if…

• you would rather work in JavaScript than TypeScript
• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (38.5k)
• you want the more recently updated codebase

Shares nextjs, react, shadcn-ui, tailwindcss with 21st.

floatui

MarsX-dev/floatui

Beautiful and responsive UI components and templates for React and Vue (soon) with Tailwind CSS.

Choose floatui if…

• you would rather work in MDX than TypeScript
• you specifically need design-systems or react-components

Shares nextjs, react, tailwindcss, ui-components with 21st.