Introduction

What is TanStack Start?

TanStack Start is the full-stack React framework in the TanStack ecosystem. It starts from TanStack Router as the application contract, then adds full-document SSR, streaming, server functions, server routes, middleware, and deployable server output.

If all you need is SPA routing, use TanStack Router. Use Start when the same app also needs SSR, server-only work, API routes, request context, and production server output.

Core Capabilities

Capability	Meaning
Type-safe routing	Params, search, and loader data are inferred from the route tree
Full-document SSR	Render complete HTML on the server
Streaming	Send UI progressively with Suspense
Server Functions	`createServerFn` same-origin RPC
Server Routes	HTTP handlers in route files
Middleware	Request context, auth, logs, CSRF
Portable deployment	Node, serverless, and edge targets

Compared with Next.js and Remix

Area	TanStack Start	Next.js	Remix
Routing core	TanStack Router	App Router / Pages	Route modules
URL state	Typed search params	Often manual	URLSearchParams
Server calls	Server Functions	Server Actions / Route Handlers	loaders / actions
Mental model	Client-authored, server-powered	RSC-heavy direction	Web fundamentals

Start's main idea is that the route tree is the contract for the full-stack app.

#Introduction

#What is TanStack Start?

#Core Capabilities

#Compared with Next.js and Remix

#Next Steps

Introduction

What is TanStack Start?

Core Capabilities

Compared with Next.js and Remix

Next Steps