The best assistant-ui alternatives
4 tools that do a similar job to assistant-ui, 4 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.
- 1
CopilotKit
Open source · MIT · ★ 38.5k
A TypeScript toolkit for building chat and generative UI on top of AI agents in web, mobile, and chat apps.
Best for: Developers adding an AI assistant or agent interface to a React or Next.js app; Teams who want one agent backend to serve a web app, a mobile app, and Slack or Teams
- 2
shadcn/ui
Open source · MIT · ★ 127k
Copy-in React UI components you customize as your own code, built on Tailwind CSS.
Best for: Developers building React or Next.js interfaces who want full control over component code; Teams that want a consistent design system they can change freely
- 3
Radix Primitives
Open source · MIT · ★ 19.5k
Unstyled, accessible React UI components for building your own design system.
Best for: Developers building a custom design system who want accessible base components; Teams adding accessible interactive widgets to an existing web app incrementally
- 4
Base UI
Open source · MIT · ★ 11.3k
Unstyled, accessible React UI components you style yourself.
Best for: React developers who want accessible components without a fixed visual style; Teams building a custom design system
How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to assistant-ui. We don't take payment for placement.