Theme Configuration

The theme is configured with the theme.config.jsx file. It should export an object that contains your configurations, for example:

theme.config.jsx

export default {
  project: {
    link: 'https://github.com/shuding/nextra'
  },
  logo: <b>Project</b>
}

Detailed information for each option is listed below.

Global

Docs Repository

Set the repository URL of the documentation. It’s used to generate the “Edit this page” link and the “Feedback” link.

Option	Type	Description
docsRepositoryBase	`string`	URL of the documentation repository

Specify a Path

If the documentation is inside a monorepo, a subfolder, or a different branch of the repository, you can simply set the docsRepositoryBase to the root path of the pages/ folder of your docs. For example:

theme.config.jsx

export default {
  docsRepositoryBase: 'https://github.com/shuding/nextra/tree/main/docs'
}

Then Nextra will automatically generate the correct file path for all pages.

Head Tags

Configure the <head> tags of the website. You can add meta tags, title, favicon, etc.

Option	Type	Description
head	`React.ReactNode \| React.FC`	Component that renders the `<head>` content

Static Head Tags

If you have only static head tags, it’s easy to directly put them in head. For example:

theme.config.jsx

export default {
  head: (
    <>
      <meta name="viewport" content="width=device-width, initial-scale=1.0" />
      <meta property="og:title" content="Nextra" />
      <meta property="og:description" content="The next site builder" />
    </>
  )
}

Dynamic Tags Based on Page

You can also use a function component as head to dynamically generate the head tags based on the current page’s front matter. For example:

theme.config.jsx

import { useRouter } from 'next/router'
import { useConfig } from 'nextra-theme-docs'
 
export default {
  head() {
    const { asPath, defaultLocale, locale } = useRouter()
    const { frontMatter } = useConfig()
    const url =
      'https://my-app.com' +
      (defaultLocale === locale ? asPath : `/${locale}${asPath}`)
 
    return (
      <>
        <meta property="og:url" content={url} />
        <meta property="og:title" content={frontMatter.title || 'Nextra'} />
        <meta
          property="og:description"
          content={frontMatter.description || 'The next site builder'}
        />
      </>
    )
  }
}

You can refer to the useConfig API section for more information about the useConfig hook and the frontMatter object.

Dark Mode and Themes

Customize the theme behavior of the website.

Option	Type	Description
darkMode	`boolean`	Show or hide the dark mode toggle button
nextThemes	`object`	Configuration for the next-themes package

Theme Color

You can adjust the theme color of the website by setting primary hue, saturation and lightness (HSL) values for light and dark themes.

Option	Type	Description
color.hue	`number \| { dark: number; light: number }`	The hue of the primary theme color (0 - 360)
color.saturation	`number \| { dark: number; light: number }`	The saturation of the primary theme color (0 - 100)
color.lightness	`number \| { dark: number; light: number }`	The lightness of the primary theme color (0 - 100)
backgroundColor.dark	`string` in format `RRR,GGG,BBB`	Background color for light theme
backgroundColor.light	`string` in format `RRR,GGG,BBB`	Background color for dark theme

Try it out for this website:

Hue (H)	Saturation (S)	Lightness (L)

💡

You can adjust the lightness independently for dark or light mode to increase legibility. For example, to have a neutral primary color you can set the primary colour to be white HSL(0, 0%, 100%) on dark theme and gray HSL(0, 0%, 50%) for light theme.

theme.config.jsx

export default {
  color: {
    hue: 0,
    saturation: 0,
    lightness: {
      dark: 100,
      light: 50
    }
  }
}

Logo

The logo of the website rendered on the navbar. It can be a React node or a function component.

Option	Type	Description
logo	`React.ReactNode \| React.FC`	Logo of the website
logoLink	`boolean \| string`	Link of the logo

Live example on StackBlitz ↗

theme.config.jsx

export default {
  logo: (
    <>
      <svg width="24" height="24" viewBox="0 0 24 24">
        <path
          fill="currentColor"
          d="M14.683 14.828a4.055 4.055 0 0 1-1.272.858a4.002 4.002 0 0 1-4.875-1.45l-1.658 1.119a6.063 6.063 0 0 0 1.621 1.62a5.963 5.963 0 0 0 2.148.903a6.035 6.035 0 0 0 3.542-.35a6.048 6.048 0 0 0 1.907-1.284c.272-.271.52-.571.734-.889l-1.658-1.119a4.147 4.147 0 0 1-.489.592z M12 2C6.486 2 2 6.486 2 12s4.486 10 10 10s10-4.486 10-10S17.514 2 12 2zm0 2c2.953 0 5.531 1.613 6.918 4H5.082C6.469 5.613 9.047 4 12 4zm0 16c-4.411 0-8-3.589-8-8c0-.691.098-1.359.264-2H5v1a2 2 0 0 0 2 2h2a2 2 0 0 0 2-2h2a2 2 0 0 0 2 2h2a2 2 0 0 0 2-2v-1h.736c.166.641.264 1.309.264 2c0 4.411-3.589 8-8 8z"
        />
      </svg>
      <span style={{ marginLeft: '.4em', fontWeight: 800 }}>
        My Cool Project
      </span>
    </>
  )
}

Project Link

Show a button that links to your project’s homepage on the navbar. By default, it links to Nextra’s GitHub repository.

Option	Type	Description
project.link	`string`	URL of the project homepage
project.icon	`React.ReactNode \| React.FC`	Icon or element of the project link

You can configure project.link and project.icon to customize the project link, for example make it link to your GitLab repository:

theme.config.jsx

export default {
  project: {
    link: 'https://gitlab.com/inkscape/inkscape',
    icon: (
      <svg width="24" height="24" fill="currentColor" viewBox="0 0 256 256">
        <path d="m231.9 169.8l-94.8 65.6a15.7 15.7 0 0 1-18.2 0l-94.8-65.6a16.1 16.1 0 0 1-6.4-17.3L45 50a12 12 0 0 1 22.9-1.1L88.5 104h79l20.6-55.1A12 12 0 0 1 211 50l27.3 102.5a16.1 16.1 0 0 1-6.4 17.3Z" />
      </svg>
    )
  }
}

If icon is missing, it will be a GitHub icon by default.

Chat Link

Show a button that links to your project’s forum or other social media on the navbar.

Option	Type	Description
chat.link	`string`	URL of the chat link
chat.icon	`React.ReactNode \| React.FC`	Icon or element of the chat link

You can configure chat.link and chat.icon to customize the chat link, for example make it link to your Twitter account:

theme.config.jsx

export default {
  chat: {
    link: 'https://twitter.com/shuding_',
    icon: (
      <svg width="24" height="24" viewBox="0 0 248 204">
        <path
          fill="currentColor"
          d="M221.95 51.29c.15 2.17.15 4.34.15 6.53 0 66.73-50.8 143.69-143.69 143.69v-.04c-27.44.04-54.31-7.82-77.41-22.64 3.99.48 8 .72 12.02.73 22.74.02 44.83-7.61 62.72-21.66-21.61-.41-40.56-14.5-47.18-35.07a50.338 50.338 0 0 0 22.8-.87C27.8 117.2 10.85 96.5 10.85 72.46v-.64a50.18 50.18 0 0 0 22.92 6.32C11.58 63.31 4.74 33.79 18.14 10.71a143.333 143.333 0 0 0 104.08 52.76 50.532 50.532 0 0 1 14.61-48.25c20.34-19.12 52.33-18.14 71.45 2.19 11.31-2.23 22.15-6.38 32.07-12.26a50.69 50.69 0 0 1-22.2 27.93c10.01-1.18 19.79-3.86 29-7.95a102.594 102.594 0 0 1-25.2 26.16z"
        />
      </svg>
    )
  }
}

If icon is missing, it will be a Discord icon by default.

Check out Page Configuration to learn how to add custom menus or links to the navbar.

Search

Option	Type	Description
search.component	`React.ReactNode \|` `React.FC<{ className?: string; directories: Item[] }>`
search.emptyResult	`React.ReactNode \| React.FC`	Not found text
search.loading	`React.ReactNode \| React.FC`	Loading text
search.error	`string \| (() => string)`	Error text
search.placeholder	`string \| (() => string)`	Placeholder text

Banner

Show a banner on the top of the website. It can be used to show a warning or a notice.

Option	Type	Description
`banner.dismissible`	`boolean`	Closable banner or not
`banner.key`	`string`	Storage key to keep the banner state (dismissed or not)
`banner.content`	`React.ReactNode \| React.FC`	Content of the banner

Banner key

A banner can be dismissed. By default banner.key will be "nextra-banner" and it’s used by localStorage to keep the banner state (dismissed or not) on the client.

If you have updated your banner text, you should change the key to make sure the banner is shown again. The best practice is to always use a descriptive key for the current text, for example:

theme.config.jsx

export default {
  banner: {
    key: '2.0-release',
    content: (
      <a href="https://nextra.site" target="_blank">
        🎉 Nextra 2.0 is released. Read more →
      </a>
    )
  }
}

Customize the entire navbar component.

Option	Type	Description
navbar.component	`React.ReactNode \| React.FC<NavBarProps>`	Navbar component
navbar.extraContent	`React.ReactNode \| React.FC`	Display extra content after last icon

Sidebar

Option	Type	Description
sidebar.defaultMenuCollapseLevel	`number`	Specifies the folder level at which the menu on the left is collapsed by default. Defaults to 2
sidebar.autoCollapse	`boolean`	If true, automatically collapse inactive folders above `defaultMenuCollapseLevel`
sidebar.toggleButton	`boolean`	Hide/show sidebar toggle button. Defaults to `false`

By default, the sidebar menu is collapsed at level 2. You can change it by setting sidebar.defaultMenuCollapseLevel to a different number. For example, when set to 1, every folder will be collapsed by default and when set to Infinity, all nested folders will be expanded by default.

If sidebar.autoCollapse is set to true, then all folders that do not contain an active/focused route will automatically collapse up to the level set by sidebar.defaultMenuCollapseLevel. e.g. if defaultMenuCollapseLevel is 2, then top-level folders will not auto-collapse.

Customize Sidebar Content

Together with the Separators item, you can customize how the sidebar content is rendered by using JSX elements:

_meta.jsx

export default {
  index: 'Intro',
  '--': {
    type: 'separator',
    title: (
      <div className="flex items-center gap-2">
        <MyLogo />
        {children}
      </div>
    )
  },
  frameworks: 'JS Frameworks & Libs',
  about: 'About'
}

Customize Sidebar with Frontmatter

In addition, you can customize the sidebar title using the sidebarTitle property in your front matter:

pages/getting-started.mdx

---
sidebarTitle: Getting Started 🚀
---

The priority of the sidebar title is as follows:

title property from _meta.js file
Front matter sidebarTitle
Front matter title
Filename of the page formatted with Title

Content

MDX Components

Provide custom MDX components to render the content. For example, you can use a custom pre component to render code blocks.

Option	Type	Description
components	`Record<string, React.FC>`	Custom MDX components

Writing Direction

The default writing direction of the website.

Option	Type	Description
direction	`"ltr" \| "rtl"`	Default writing direction

Main Content

Render top and/or bottom content of main area of the page. It can be used to render a comment section, a newsletter form, or any other type of content.

Option	Type	Description
main	`React.FC<{ children: React.ReactNode }>`	Component of main content

TOC Sidebar

Show a table of contents on the right side of the page. It’s useful for navigating between headings.

Option	Type	Description
toc.component	`React.ReactNode \| React.FC<TOCProps>`	Custom renderer of the TOC
toc.extraContent	`React.ReactNode \| React.FC`	Display extra content below the TOC content
toc.float	`boolean`	Float the TOC next to the content
toc.title	`React.ReactNode \| React.FC`	Title of the TOC sidebar. By default it’s “On This Page”
toc.backToTop	`React.ReactNode \| React.FC`	Text of `Scroll to top` button

Floating TOC

toc.float is enabled by default. When enabled, the TOC will be displayed on the right side of the page and it will be sticky when scrolling. If it’s disabled, the TOC will be displayed directly on the page sidebar.

Edit Link

Show an “Edit this page” link on the page that points to the file URL on GitHub (or other places).

Option	Type	Description
editLink.content	`React.ReactNode \| React.FC`	Content of the edit link
editLink.component	`React.FC<{ children: React.ReactNode; className?: string; filePath?: string }> \| null`	Customized edit link component

To disable it, you can set editLink.component to null.

Feedback Link

The built-in feedback link provides a way for users to submit feedback about the documentation. By default, it’s a link that points to the issue creation form of the docs repository, with the current website title prefilled: example.

Option	Type	Description
feedback.content	`React.ReactNode \| React.FC`	Content of the feedback button
feedback.labels	`string`	Labels that can be added to the new created GitHub issue
feedback.useLink	`() => string`	Custom link, by default, will open an issue in the repository set in `docsRepositoryBase`

To disable it, you can set feedback.content to null.

End of Page

Show previous and next page links on the bottom of the content. It’s useful for navigating between pages.

Option	Type	Description
navigation	`boolean \| object`	Enable or disable navigation link
navigation.prev	`boolean`	Enable or disable the previous page link
navigation.next	`boolean`	Enable or disable the next page link

theme.config.jsx

export default {
  navigation: {
    prev: true,
    next: true
  }
}

The above is also equivalent to navigation: true.

Last Updated Date

Show the last updated date of each page. It’s useful for showing the freshness of the content.

Option	Type	Description
gitTimestamp	`React.ReactNode \| React.FC<{ timestamp: Date }>`	Component to render the last updated info

Footer

The footer area of the website. You can either specify some content for the default footer, or fully customize it with a custom component.

Option	Type	Description
footer.content	`React.ReactNode \| React.FC`	Content of the footer component
footer.component	`React.ReactNode \| React.FC<{ menu: boolean }>`	Customized footer component

Copyright Information

You can add some simple content, such as copyright information to the default footer:

theme.config.jsx

export default {
  footer: {
    content: (
      <span>
        MIT {new Date().getFullYear()} ©{' '}
        <a href="https://nextra.site" target="_blank">
          Nextra
        </a>
        .
      </span>
    )
  }
}

Theme Switch

Option	Type	Description
themeSwitch.component	`React.ReactNode \|` `React.FC<{ lite?: boolean, className?: string }>`	Component to render the theme switch
themeSwitch.useOptions	`ThemeOptions \| () => ThemeOptions`	Options in the theme switch

Options

You are able to customize the option names for localization or other purposes:

theme.config.jsx

export default {
  themeSwitch: {
    useOptions() {
      return {
        light: 'Light',
        dark: 'Dark',
        system: 'System'
      }
    }
  }
}

Not Found Page

Options to configure report of broken link on not found page.

Option	Type	Description
notFound.content	`ReactNode \| FC`	Default: `Submit an issue about broken link →`
notFound.labels	`string`	Default: `bug`

I18n

Options to configure the language dropdown for the i18n docs website.

Option	Type	Description
i18n[number].locale	`string`	Locale from `i18n.locales` field in `next.config` file
i18n[number].name	`string`	Locale name in dropdown
i18n[number].direction	`'ltr' \| 'rtl'`	Locale writing direction. Default: `ltr`

Favicon Glyph

This isn’t supported by all browsers, but it’s a nice way to customize the favicon of the website simply by using an emoji or character.

Option	Type	Description
faviconGlyph	`string`	The glyph to use as the favicon

Page Configuration Built-in Components

Theme Configuration

Global

Docs Repository

Specify a Path

Head Tags

Static Head Tags

Dynamic Tags Based on Page

Dark Mode and Themes

Theme Color

Navbar

Logo

Project Link

Chat Link

Menu and Custom Links

Search

Banner

Banner key

Customize the Navbar

Sidebar

Menu Collapse Level

Customize Sidebar Content

Customize Sidebar with Frontmatter

Content

MDX Components

Writing Direction

Main Content

TOC Sidebar

Table of Contents

Floating TOC

Edit Link

Feedback Link

End of Page

Navigation

Last Updated Date

Footer

Copyright Information

Theme Switch

Options

Not Found Page

I18n

Favicon Glyph