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2.0.2 • Public • Published

React HTML Parser

A utility for converting HTML strings into React components. Avoids the use of dangerouslySetInnerHTML and converts standard HTML elements, attributes and inline styles into their React equivalents.

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npm install react-html-parser
# or 
yarn add react-html-parser


import React from 'react';
import ReactHtmlParser, { processNodes, convertNodeToElement, htmlparser2 } from 'react-html-parser';
class HtmlComponent extends React.Component {
  render() {
    const html = '<div>Example HTML string</div>';
    return <div>{ ReactHtmlParser(html) }</div>;


function ReactHtmlParser(html, [options])

Takes an HTML string and returns equivalent React elements


import ReactHtmlParser from 'react-html-parser';


  • html: The HTML string to parse
  • options: Options object
    • decodeEntities=true (boolean): Whether to decode html entities (defaults to true)
    • transform (function): Transform function that is applied to every node
    • preprocessNodes (function): Pre-process the nodes generated by htmlparser2

Transform Function

The transform function will be called for every node that is parsed by the library.

function transform(node, index)

  • node: The node being parsed. This is the htmlparser2 node object. Full details can be found on their project page but important properties are:
    • type (string): The type of node (tag, text, style etc)
    • name (string): The name of the node
    • children (array): Array of children nodes
    • next (node): The node's next sibling
    • prev (node): The node's previous sibling
    • parent (node): The node's parent
    • data (string): The text content, if the type is text
  • index (number): The index of the node in relation to it's parent

Return Types

return null Returning null will prevent the node and all of it's children from being rendered.

function transform(node) {
  // do not render any <span> tags
  if (node.type === 'tag' && node.name === 'span') {
    return null;

return undefined If the function does not return anything, or returns undefined, then the default behaviour will occur and the parser will continue was usual.

return React element React elements can be returned directly

import React from 'react';
function transform(node) {
  if (node.type === 'tag' && node.name === 'b') {
    return <div>This was a bold tag</div>;

preprocessNodes Function

Allows pre-processing the nodes generated from the html by htmlparser2 before being passed to the library and converted to React elements.

function preprocessNodes(nodes)

  • nodes: The entire node tree generated by htmlparser2.
Return type

The preprocessNodes function should return a valid htmlparser2 node tree.

function convertNodeToElement(node, index, transform)

Processes a node and returns the React element to be rendered. This function can be used in conjunction with the previously described transform function to continue to process a node after modifying it.


import { convertNodeToElement } from 'react-html-parser';


  • node: The node to process
  • index (number): The index of the node in relation to it's parent
  • transform: The transform function as described above
import { convertNodeToElement } from 'react-html-parser';
function transform(node, index) {
  // convert <ul> to <ol>
  if (node.type === 'tag' && node.name === 'ul') {
    node.name = 'ol';
    return convertNodeToElement(node, index, transform);


The library exposes the htmlparser2 library it uses. This allows consumers to use it without having to add it as a separate dependency.

See https://github.com/fb55/htmlparser2 for full details.


npm i react-html-parser

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