--- title: next.config.js Options description: Learn about the options available in next.config.js for the Pages Router. url: "https://nextjs.org/docs/14/pages/api-reference/next-config-js" docs_index: /docs/14/pages/llms.txt version: 14.2.35 lastUpdated: 2023-06-28 prerequisites: - "API Reference: /docs/14/pages/api-reference" --- > For an index of all Next.js documentation, see [/docs/14/pages/llms.txt](/docs/14/pages/llms.txt). - [assetPrefix](/docs/14/pages/api-reference/next-config-js/assetPrefix) - Learn how to use the assetPrefix config option to configure your CDN. - [basePath](/docs/14/pages/api-reference/next-config-js/basePath) - Use `basePath` to deploy a Next.js application under a sub-path of a domain. - [compress](/docs/14/pages/api-reference/next-config-js/compress) - Next.js provides gzip compression to compress rendered content and static files, it only works with the server target. Learn more about it here. - [devIndicators](/docs/14/pages/api-reference/next-config-js/devIndicators) - Optimized pages include an indicator to let you know if it's being statically optimized. You can opt-out of it here. - [distDir](/docs/14/pages/api-reference/next-config-js/distDir) - Set a custom build directory to use instead of the default .next directory. - [env](/docs/14/pages/api-reference/next-config-js/env) - Learn to add and access environment variables in your Next.js application at build time. - [eslint](/docs/14/pages/api-reference/next-config-js/eslint) - Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here. - [exportPathMap](/docs/14/pages/api-reference/next-config-js/exportPathMap) - Customize the pages that will be exported as HTML files when using `next export`. - [generateBuildId](/docs/14/pages/api-reference/next-config-js/generateBuildId) - Configure the build id, which is used to identify the current build in which your application is being served. - [generateEtags](/docs/14/pages/api-reference/next-config-js/generateEtags) - Next.js will generate etags for every page by default. Learn more about how to disable etag generation here. - [headers](/docs/14/pages/api-reference/next-config-js/headers) - Add custom HTTP headers to your Next.js app. - [httpAgentOptions](/docs/14/pages/api-reference/next-config-js/httpAgentOptions) - Next.js will automatically use HTTP Keep-Alive by default. Learn more about how to disable HTTP Keep-Alive here. - [images](/docs/14/pages/api-reference/next-config-js/images) - Custom configuration for the next/image loader - [onDemandEntries](/docs/14/pages/api-reference/next-config-js/onDemandEntries) - Configure how Next.js will dispose and keep in memory pages created in development. - [output](/docs/14/pages/api-reference/next-config-js/output) - Next.js automatically traces which files are needed by each page to allow for easy deployment of your application. Learn how it works here. - [pageExtensions](/docs/14/pages/api-reference/next-config-js/pageExtensions) - Extend the default page extensions used by Next.js when resolving pages in the Pages Router. - [poweredByHeader](/docs/14/pages/api-reference/next-config-js/poweredByHeader) - Next.js will add the `x-powered-by` header by default. Learn to opt-out of it here. - [productionBrowserSourceMaps](/docs/14/pages/api-reference/next-config-js/productionBrowserSourceMaps) - Enables browser source map generation during the production build. - [reactStrictMode](/docs/14/pages/api-reference/next-config-js/reactStrictMode) - The complete Next.js runtime is now Strict Mode-compliant, learn how to opt-in - [redirects](/docs/14/pages/api-reference/next-config-js/redirects) - Add redirects to your Next.js app. - [rewrites](/docs/14/pages/api-reference/next-config-js/rewrites) - Add rewrites to your Next.js app. - [Runtime Config](/docs/14/pages/api-reference/next-config-js/runtime-configuration) - Add client and server runtime configuration to your Next.js app. - [trailingSlash](/docs/14/pages/api-reference/next-config-js/trailingSlash) - Configure Next.js pages to resolve with or without a trailing slash. - [transpilePackages](/docs/14/pages/api-reference/next-config-js/transpilePackages) - Automatically transpile and bundle dependencies from local packages (like monorepos) or from external dependencies (`node_modules`). - [turbo](/docs/14/pages/api-reference/next-config-js/turbo) - Configure Next.js with Turbopack-specific options - [typescript](/docs/14/pages/api-reference/next-config-js/typescript) - Next.js reports TypeScript errors by default. Learn to opt-out of this behavior here. - [urlImports](/docs/14/pages/api-reference/next-config-js/urlImports) - Configure Next.js to allow importing modules from external URLs (experimental). - [webpack](/docs/14/pages/api-reference/next-config-js/webpack) - Learn how to customize the webpack config used by Next.js - [webVitalsAttribution](/docs/14/pages/api-reference/next-config-js/webVitalsAttribution) - Learn how to use the webVitalsAttribution option to pinpoint the source of Web Vitals issues. --- For an index of all available documentation, see [/docs/14/pages/llms.txt](/docs/14/pages/llms.txt)