Docusaurus has a unique take on configurations. We encourage you to congregate information of your site into one place. We will guard the fields of this file, and facilitate making this data object accessible across your site.

Keeping a well-maintained docusaurus.config.js helps you, your collaborators, and your open source contributors be able to focus on documentation while still being able to easily customize fields.

For reference to each of the configurable fields, you may refer to the API reference of docusaurus.config.js.

What goes into docusaurus.config.js?

You should not have to write your docusaurus.config.js from scratch even if you are developing your site. All templates come with a docusaurus.config.js at root that includes the necessary data for the initial site.

However, it can be helpful if you have a high-level understanding of how the configurations are designed and implemented.

The configurations can be categorized into:

Site metadata

Site metadata contains the essential global metadata such as titles and favicon.

They are used by your website in a number of places such as your site's title and headings, browser tab icon, social sharing (Facebook, Twitter) information and for search engine optimization (SEO).

Deployment configurations

Deployment configurations are used when you deploy your site with Docusaurus' deploy command. The related fields are:

You may also check the deployment docs for more information about the fields.

Themes, Plugins, and Presets configurations

This section is a work in progress. Welcoming PRs.

Custom configurations

Docusaurus guards docusaurus.config.js from unknown fields. To add a custom field, define it on customFields


// docusaurus.config.js
module.exports = {
customFields: {
image: '',
keywords: [],

Accessing configuration from components

Your configuration object will be made available to all the components of your site. And you may access them via context as siteConfig:

import React from 'react';
import Head from '@docusaurus/Head';
import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
const Layout = props => {
const context = useDocusaurusContext();
const {siteConfig = {}} = context;
const {title, tagline, seo} = siteConfig;
return (
<Head defaultTitle={`${defaultTitle} · ${tagline}`}>
{description && <meta name="description" content={seo.description} />}

If you just want to use those fields on the client side, you could create your own JS files and import them as ES6 modules, there is no need to put them in docusaurus.config.js.