react-render-markup

Safely parse HTML, SVG and MathML into React elements.

• :gift: Lightweight
• :smile: Easy to use with simple API
• :printer: Server-side rendering out of the box

Usage

Markup component

import { Markup } from 'react-render-markup';

<Markup [...props] />

Props

• allowed array of tag names to allow rendering.

  :warning: Setting this option will strip all other elements from output.

• markup string of HTML you’d like to parse.

• replace object of elements to replace.

  The keys are tag names to replace and values are the type to replace with (either tag name string or a React component type.)

• trim boolean removes whitespace text nodes when true.

renderMarkup function

import { renderMarkup } from 'react-render-markup';

renderMarkup(markup[, options])

Parameters

• markup string of HTML you’d like to parse.

• options optional object of the following options:

  • allowed array of tag names to allow rendering.

    :warning: Setting this option will strip all other elements from output.

  • replace object of elements to replace.

    The keys are tag names to replace and values are the type to replace with (either tag name string or a React component type.)

  • trim boolean removes whitespace text nodes when true.

Return value

An array of React elements.

Examples

Basic

const MyComponent = (props) => {
  const { content } = props;
  return (
    <div>
      <Markup markup={content} />
    </div>
  );
};

or

const MyComponent = (props) => {
  const { content } = props;
  return <div>{renderMarkup(content)}</div>;
};

With allowed option

const allowed = ['strong', 'em']; // strips all other elements

const MyComponent = (props) => {
  const { content } = props;
  return (
    <div>
      <Markup allowed={allowed} markup={content} />
    </div>
  );
};

or

const MyComponent = (props) => {
  const { content } = props;
  return (
    <div>
      {renderMarkup(content, {
        allowed: ['strong', 'em'],
      })}
    </div>
  );
};

With replace option

import { Link } from 'some-router-library';

const replace = {
  a: Link, // replace <a> elements with <Link> component
  em: 'strong', // replace <em> elements with <strong> elements
  img: null, // doesn’t render <img> elements
  span: React.Fragment, // unwraps contents of <span> elements
};

const MyComponent = (props) => {
  const { content } = props;
  return (
    <div>
      <Markup markup={content} replace={replace} />
    </div>
  );
};

or

import { Link } from 'some-router-library';

const MyComponent = (props) => {
  const { content } = props;
  return (
    <div>
      {renderMarkup(content, {
        replace: {
          a: Link,
          em: 'strong',
          img: null,
          span: React.Fragment,
        },
      })}
    </div>
  );
};

Cross Site Scripting (XSS)

By default, <script> tags and event attributes (i.e. onClick) are disallowed and stripped from output.

If you’re parsing user inputed markup, you’ll want to use some sort of HTML sanitizer first.