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Introduction

The nuqs/server package provides server-side utilities for parsing and working with URL search parameters in server components, loaders, and API routes. Unlike the main nuqs package which is designed for client-side React components, nuqs/server has no client-side dependencies and can be safely imported in server contexts.

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Import from nuqs/server

When working in server-side contexts, always import from nuqs/server to avoid bundling client-side code: 
import {
  createSearchParamsCache,
  createLoader,
  createSerializer,
  parseAsString,
  parseAsInteger,
  parseAsFloat,
  parseAsBoolean
  // ... other parsers
} from 'nuqs/server'
Do not import from nuqs in server components or server-side code, as it includes the "use client" directive and client-side dependencies.

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Available Server Exports

The nuqs/server package exports:
  • createSearchParamsCache - For accessing search params in nested server components
  • createLoader - For parsing search params in loaders, API routes, and one-off operations
  • createSerializer - For generating URLs with search params (e.g., for <Link> components)
  • All parsers - parseAsString, parseAsInteger, parseAsFloat, parseAsBoolean, parseAsTimestamp, parseAsIsoDateTime, parseAsArrayOf, parseAsJson, parseAsStringEnum, parseAsStringLiteral, parseAsNumberLiteral, etc.
  • Type utilities - inferParserType, UrlKeys, SearchParams, Options, etc.
  • Rate limiting utilities - debounce, throttle, defaultRateLimit

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Server-Side Use Cases

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Next.js App Router

In Next.js app router pages and server components: 
import { createSearchParamsCache, parseAsString, parseAsInteger } from 'nuqs/server'

const searchParamsCache = createSearchParamsCache({
  q: parseAsString.withDefault(''),
  page: parseAsInteger.withDefault(1)
})

export default async function Page({ searchParams }) {
  const { q, page } = await searchParamsCache.parse(searchParams)
  // Use parsed values...
  return <div>Search: {q}, Page: {page}</div>
}

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Remix Loaders

import { createLoader, parseAsString } from 'nuqs/server'

const searchParams = {
  q: parseAsString,
  page: parseAsInteger.withDefault(1)
}

const loadSearchParams = createLoader(searchParams)

export async function loader({ request }: LoaderFunctionArgs) {
  const { q, page } = loadSearchParams(request)
  // Fetch data based on parsed params...
  return json({ results, q, page })
}

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React Router Loaders

import { createLoader, parseAsString } from 'nuqs/server'

const loadSearchParams = createLoader({
  filter: parseAsString,
  sort: parseAsString.withDefault('name')
})

export async function loader({ request }) {
  const { filter, sort } = loadSearchParams(request)
  return { items: await fetchItems(filter, sort) }
}

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API Routes

import { createLoader, parseAsInteger } from 'nuqs/server'

const loadSearchParams = createLoader({
  limit: parseAsInteger.withDefault(10),
  offset: parseAsInteger.withDefault(0)
})

export async function GET(request: Request) {
  const { limit, offset } = loadSearchParams(request)
  const data = await fetchData({ limit, offset })
  return Response.json(data)
}

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Type Safety

All server-side utilities maintain full type safety. TypeScript will correctly infer the types of parsed values based on the parsers you provide: 
import { createLoader, parseAsInteger, parseAsBoolean } from 'nuqs/server'

const loadSearchParams = createLoader({
  count: parseAsInteger,           // number | null
  active: parseAsBoolean.withDefault(false)  // boolean
})

const params = loadSearchParams(request)
// params.count has type: number | null
// params.active has type: boolean

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Sharing Parser Configurations

You can share parser configurations between client and server code: 
// searchParams.ts
import { parseAsString, parseAsInteger } from 'nuqs/server'

export const filterParsers = {
  query: parseAsString.withDefault(''),
  page: parseAsInteger.withDefault(1),
  limit: parseAsInteger.withDefault(20)
}

// server.tsx (Server Component)
import { createSearchParamsCache } from 'nuqs/server'
import { filterParsers } from './searchParams'

const searchParamsCache = createSearchParamsCache(filterParsers)

// client.tsx (Client Component)
import { useQueryStates } from 'nuqs'
import { filterParsers } from './searchParams'

export function Filters() {
  const [filters, setFilters] = useQueryStates(filterParsers)
  // ...
}

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Next Steps

Loaders

Learn about createLoader for one-off parsing

Cache

Use createSearchParamsCache for server components

Serializer

Generate URLs with createSerializer