---
title: Configuration
description: Learn how to configure your Next.js application.
url: "https://nextjs.org/docs/15/pages/api-reference/config"
docs_index: /docs/15/pages/llms.txt
version: 15.5.18
lastUpdated: 2025-04-15
prerequisites:
  - "API Reference: /docs/15/pages/api-reference"
---


> For an index of all Next.js documentation, see [/docs/15/pages/llms.txt](/docs/15/pages/llms.txt).

- [next.config.js Options](/docs/15/pages/api-reference/config/next-config-js)
  - Learn about the options available in next.config.js for the Pages Router.
- [TypeScript](/docs/15/pages/api-reference/config/typescript)
  - Next.js provides a TypeScript-first development experience for building your React application.
- [ESLint](/docs/15/pages/api-reference/config/eslint)
  - Next.js reports ESLint errors and warnings during builds by default. Learn how to opt-out of this behavior here.

---

For an index of all available documentation, see [/docs/15/pages/llms.txt](/docs/15/pages/llms.txt)