Project: rehypejs/rehype-shift-heading

Package: rehype-shift-heading@1.0.2

  1. Dependents: 0
  2. rehype plugin to change the rank (depth, level) of headings
  1. unified 181
  2. plugin 140
  3. html 124
  4. rehype 88
  5. hast 74
  6. rehype-plugin 59
  7. heading 26


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rehype plugin to change the rank of headings.


What is this?

This package is a unified (rehype) plugin to change the rank (also known as depth or level) of headings (so <h1> through <h6>). You can increase (by passing a positive number) or decrease (negative number) all headings.

unified is a project that transforms content with abstract syntax trees (ASTs). rehype adds support for HTML to unified. hast is the HTML AST that rehype uses. This is a rehype plugin that changes headings in the tree.

When should I use this?

This plugin is particularly useful when merging documents into each other. For example, when injecting a readme.md that starts with an <h1> into a site that uses an <h1> for the title of the website. This plugin can be used to shift all the headings inside the readme.

This plugin is built on hast-util-shift-heading, which does the work on syntax trees. rehype focusses on making it easier to transform content by abstracting such internals away.


This package is ESM only. In Node.js (version 16+), install with npm:

npm install rehype-shift-heading

In Deno with esm.sh:

import rehypeShiftHeading from 'https://esm.sh/rehype-shift-heading@2'

In browsers with esm.sh:

<script type="module">
  import rehypeShiftHeading from 'https://esm.sh/rehype-shift-heading@2?bundle'


Say our module example.js looks as follows:

import {rehype} from 'rehype'
import rehypeShiftHeading from 'rehype-shift-heading'

const file = await rehype()
  .data('settings', {fragment: true})
  .use(rehypeShiftHeading, {shift: 1})


Now, running node example yields:



This package exports no identifiers. The default export is rehypeShiftHeading.

unified().use(rehypeShiftHeading[, options])

Change the rank (depth, level) of headings.

Does not shift past h1 and h6.


Transform (Transformer).


Configuration (TypeScript type).



This package is fully typed with TypeScript. It exports the additional type Options.


Projects maintained by the unified collective are compatible with maintained versions of Node.js.

When we cut a new major release, we drop support for unmaintained versions of Node. This means we try to keep the current release line, rehype-shift-heading@^2, compatible with Node.js 16.

This plugin works with rehype-parse version 1+, rehype-stringify version 1+, rehype version 1+, and unified version 4+.


Use of rehype-shift-heading is safe.


See contributing.md in rehypejs/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.


MIT © Titus Wormer