---
title: Introduction
description: A brief introduction to Hugo modules.
categories: []
keywords: []
weight: 10
---

Hugo uses modules as its fundamental organizational units. A module can be a full Hugo project or a smaller, reusable piece providing one or more of Hugo's seven component types: static files, content, layouts, data, assets, internationalization (i18n) resources, and archetypes.

Modules are combinable in any arrangement, and external directories (including those from non-Hugo projects) can be mounted, effectively creating a single, unified file system.

Some example projects:

<https://github.com/bep/docuapi>
: A theme that has been ported to Hugo modules while testing this feature. It is a good example of a non-Hugo-project mounted into Hugo's directory structure.

<https://github.com/bep/my-modular-site>
: A simple site used for testing.