assistant-ui
ActiveOpen Source React.js Library for AI Chat
What it does
assistant-ui helps frontend developers add AI chat to their apps. Our product is used by several dozen companies, like LangChain, Stack AI, Browser Use, and Athena Intelligence. We're building an open source Typescript/React library and a backend as a service, with first class integrations into popular agent frameworks like LangGraph and Vercel AI SDK.
Its site says now · captured 2026-08-23
assistant-ui - React Chat UI for AI Apps
Open-source React components and runtimes for building AI chat — ChatGPT-style UIs, copilots, and agents in TypeScript with streaming, tools, and persistence.
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