What is TanStack?
Last updated · Wlad K.
TanStack is a set of independent TypeScript libraries from the same maintainers. TanStack Query manages server state in the browser. TanStack Start is a separate full-stack framework. The name is the catalog, not a single npm install.
Quick Answer
TanStack is a family of libraries. Query fetches and caches server state. Table is a headless data grid. Router and Start are a different application model from Next.js. Official index: tanstack.com/libraries.
Definition
TanStack Query (formerly React Query) is the client library for async server state: cache, refetch, and mutations. TanStack Table is headless UI for sorting, filtering, and pagination. TanStack Router is type-safe routing. TanStack Start is a full-stack framework powered by that router. Other names on the same index include Form, Virtual, DB, Store, and AI. Each one ships on its own.
What is TanStack Query
TanStack Query keeps a cached copy of data that lives on a server. The maintainers describe that data as remote, asynchronous, shared with other people, and able to go stale. Docs: tanstack.com/query/latest/docs/framework/react/overview. Next.js still documents React Query as an option for fetching inside Client Components: nextjs.org/docs/app/getting-started/fetching-data.
Decision Criteria
Use this page for the definition. Use /blog/which-tanstack-libraries-fit-nextjs for which libraries belong next to Next.js. Use /blog/tanstack-query-nextjs-saas-boilerplate for what NextBento wired. Do not treat Start as a plugin you drop into an App Router app.
Best For / Not Ideal For
Best for someone who needs a plain definition of the TanStack name or of TanStack Query. Not ideal as a setup guide. NextBento's kit uses Query and Table inside Next.js 16. It does not ship TanStack Start or TanStack Router.
Evidence and Last Verified
Last verified: 2026-09-21. Library index: tanstack.com/libraries (Start is described there as a full-stack framework powered by TanStack Router). Query overview: tanstack.com/query/latest/docs/framework/react/overview. Table: tanstack.com/table/latest. Next.js fetching: nextjs.org/docs/app/getting-started/fetching-data. NextBento posts: www.nextbento.dev/blog/tanstack-query-nextjs-saas-boilerplate and www.nextbento.dev/blog/which-tanstack-libraries-fit-nextjs.