---
title: Architecture
description: How Next.js Works
url: "https://nextjs.org/docs/13/architecture"
docs_index: /docs/13/llms.txt
lastUpdated: 2023-06-08
---

> For an index of all documentation, see [/docs/13/llms.txt](/docs/13/llms.txt).

Learn about the Next.js architecture and how it works under the hood.

- [Accessibility](/docs/13/architecture/accessibility): The built-in accessibility features of Next.js.
- [Fast Refresh](/docs/13/architecture/fast-refresh): Fast Refresh is a hot module reloading experience that gives you instantaneous feedback on edits made to your React components.
- [Next.js Compiler](/docs/13/architecture/nextjs-compiler): Next.js Compiler, written in Rust, which transforms and minifies your Next.js application.
- [Supported Browsers](/docs/13/architecture/supported-browsers): Browser support and which JavaScript features are supported by Next.js.
- [Turbopack](/docs/13/architecture/turbopack): Turbopack is an incremental bundler optimized for JavaScript and TypeScript, written in Rust, and built into Next.js.

---

For a semantic overview of all documentation, see [/sitemap.md](/sitemap.md)

For an index of all available documentation, see [/docs/13/llms.txt](/docs/13/llms.txt)