Project: rehypejs/rehype-raw

Package: rehype-raw@5.1.0

  1. Dependencies: 1·Dependents: 80
  2. rehype plugin to reparse the tree (and raw nodes)
  1. unified 168
  2. plugin 133
  3. html 110
  4. rehype 75
  5. rehype-plugin 53
  6. raw 3


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rehype plugin to parse the tree again (and raw nodes). Keeping positional info OK. 🙌

Tiny wrapper around hast-util-raw



npm install rehype-raw


Say we have the following Markdown file, example.md:

<div class="note">

A mix of *Markdown* and <em>HTML</em>.


And our script, example.js, looks as follows:

var vfile = require('to-vfile')
var report = require('vfile-reporter')
var unified = require('unified')
var markdown = require('remark-parse')
var remark2rehype = require('remark-rehype')
var doc = require('rehype-document')
var format = require('rehype-format')
var stringify = require('rehype-stringify')
var raw = require('rehype-raw')

  .use(remark2rehype, {allowDangerousHtml: true})
  .use(doc, {title: '🙌'})
  .process(vfile.readSync('example.md'), function (err, file) {
    console.error(report(err || file))

Now, running node example yields:

example.md: no issues found
<!doctype html>
<html lang="en">
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <div class="note">
      <p>A mix of <em>Markdown</em> and <em>HTML</em>.</p>


rehype().use(raw[, options])

Parse the tree again, also parsing “raw” nodes (as exposed by remark-rehype). options are passed to hast-util-raw.


This project parses a hast tree with embedded raw HTML. This typically occurs because we’re coming from Markdown, often parsed by remark-parse. Inside Markdown, HTML is a black box: Markdown doesn’t know what’s inside that HTML. So, when rehype-raw maps Markdown to HTML, it cannot understand raw embedded HTML.

That’s where this project comes in.

But, Markdown is much terser than HTML, so it’s often preferred to use Markdown, in HTML, inside Markdown. As can be seen in the above example.

However, Markdown can only be mixed with HTML in some cases. Take the following examples:


Improper use of rehype-raw can open you up to a cross-site scripting (XSS) attack.

Either do not combine this plugin with user content or use rehype-sanitize.


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