TanStack Router Has Free Type-Safe Routing — The React Router Replacement

React Router Has a Type Safety Problem React Router URLs are strings. Params are any . Links can point to routes that do not exist. You discover broken links in production. TanStack Router: Fully Type-Safe import { createFileRoute } from " @tanstack/react-router " export const Route = createFileRoute ( " /users/$userId " )({ loader : async ({ params }) => { // params.userId is typed as string — not any return fetchUser ( params . userId ) }, component : UserPage }) function UserPage () { const { userId } = Route . useParams () // TypeScript knows userId exists and is a string const user = Route . useLoaderData () // user is fully typed from the loader return return < h1 > { user . name } < /h1 > } Type-Safe Links // This compiles < Link to = "/users/$userId" params = { { userId : " 123 " } } /> // This FAILS at compile time < Link to = "/users/$userId" params = { { id : " 123 " } } /> // Error: Object literal may only specify known properties Broken links caught at compile time, not in