---
title: Configuration
description: Learn how to configure Next.js applications.
url: "https://nextjs.org/docs/15/app/api-reference/config"
docs_index: /docs/15/llms.txt
version: 15.5.18
lastUpdated: 2025-06-16
prerequisites:
  - "API Reference: /docs/15/app/api-reference"
---


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

- [next.config.js](/docs/15/app/api-reference/config/next-config-js)
  - Learn how to configure your application with next.config.js.
- [TypeScript](/docs/15/app/api-reference/config/typescript)
  - Next.js provides a TypeScript-first development experience for building your React application.
- [ESLint](/docs/15/app/api-reference/config/eslint)
  - Learn how to use and configure the ESLint plugin to catch common issues and problems in a Next.js application.

---

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