# html-react-parser [![NPM](https://nodei.co/npm/html-react-parser.png)](https://nodei.co/npm/html-react-parser/) [![NPM version](https://badgen.net/npm/v/html-react-parser)](https://www.npmjs.com/package/html-react-parser) [![Bundlephobia minified + gzip](https://badgen.net/bundlephobia/minzip/html-react-parser)](https://bundlephobia.com/package/html-react-parser) [![build](https://github.com/remarkablemark/html-react-parser/actions/workflows/build.yml/badge.svg)](https://github.com/remarkablemark/html-react-parser/actions/workflows/build.yml) [![codecov](https://codecov.io/gh/remarkablemark/html-react-parser/branch/master/graph/badge.svg?token=wosFd1DBIR)](https://codecov.io/gh/remarkablemark/html-react-parser) [![NPM downloads](https://badgen.net/npm/dm/html-react-parser)](https://www.npmjs.com/package/html-react-parser) [![Discord](https://badgen.net/discord/online-members/zkS3QDV?cache=300&icon=discord)](https://b.remarkabl.org/discord) HTML to React parser that works on both the server (Node.js) and the client (browser): ``` HTMLReactParser(string[, options]) ``` The parser converts an HTML string to one or more [React elements](https://react.dev/reference/react/createElement). To replace an element with another element, check out the [`replace`](#replace) option. #### Example ```ts import parse from 'html-react-parser'; parse('

Hello, World!

'); // React.createElement('p', {}, 'Hello, World!') ``` [Replit](https://replit.com/@remarkablemark/html-react-parser) | [JSFiddle](https://jsfiddle.net/remarkablemark/7v86d800/) | [StackBlitz](https://stackblitz.com/edit/html-react-parser) | [TypeScript](https://stackblitz.com/edit/html-react-parser-typescript) | [Examples](https://github.com/remarkablemark/html-react-parser/tree/master/examples)

Table of Contents

- [Install](#install) - [Usage](#usage) - [replace](#replace) - [replace with TypeScript](#replace-with-typescript) - [replace element and children](#replace-element-and-children) - [replace element attributes](#replace-element-attributes) - [replace and remove element](#replace-and-remove-element) - [transform](#transform) - [library](#library) - [htmlparser2](#htmlparser2) - [trim](#trim) - [Migration](#migration) - [v5](#v5) - [v4](#v4) - [v3](#v3) - [v2](#v2) - [v1](#v1) - [FAQ](#faq) - [Is this XSS safe?](#is-this-xss-safe) - [Does invalid HTML get sanitized?](#does-invalid-html-get-sanitized) - [Are ` ``` ## Usage Import ES module: ```ts import parse from 'html-react-parser'; ``` Or require CommonJS module: ```ts const parse = require('html-react-parser').default; ``` Parse single element: ```ts parse('

single

'); ``` Parse multiple elements: ```ts parse('

Item 1

Item 2

'); ``` Make sure to render parsed adjacent elements under a parent element: ```tsx

Item 1
Item 2

``` Parse nested elements: ```ts parse('

Lorem ipsum

'); ``` Parse element with attributes: ```ts parse( '

', ); ``` ### replace The `replace` option allows you to replace an element with another element. The `replace` callback's first argument is [domhandler](https://github.com/fb55/domhandler#example)'s node: ```ts parse('
', { replace(domNode) { console.dir(domNode, { depth: null }); }, }); ```

Console output

```ts Element { type: 'tag', parent: null, prev: null, next: null, startIndex: null, endIndex: null, children: [], name: 'br', attribs: {} } ```

The element is replaced if a **valid** React element is returned: ```tsx parse('

text

', { replace(domNode) { if (domNode.attribs && domNode.attribs.id === 'replace') { return replaced; } }, }); ``` The second argument is the index: ```ts parse('
', { replace(domNode, index) { console.assert(typeof index === 'number'); }, }); ``` > [!NOTE] > The index will restart at 0 when traversing the node's children so don't rely on index being a unique key. See [#1259](https://github.com/remarkablemark/html-react-parser/issues/1259#issuecomment-1889574133). #### replace with TypeScript You need to check that `domNode` is an instance of domhandler's `Element`: ```tsx import { HTMLReactParserOptions, Element } from 'html-react-parser'; const options: HTMLReactParserOptions = { replace(domNode) { if (domNode instanceof Element && domNode.attribs) { // ... } }, }; ``` Or use a type assertion: ```tsx import { HTMLReactParserOptions, Element } from 'html-react-parser'; const options: HTMLReactParserOptions = { replace(domNode) { if ((domNode as Element).attribs) { // ... } }, }; ``` If you're having issues, take a look at our [Create React App example](./examples/create-react-app-typescript/src/App.tsx). #### replace element and children Replace the element and its children (see [demo](https://replit.com/@remarkablemark/html-react-parser-replace-example)): ```tsx import parse, { domToReact } from 'html-react-parser'; const html = `

keep me and make me pretty!

`; const options = { replace({ attribs, children }) { if (!attribs) { return; } if (attribs.id === 'main') { return

{domToReact(children, options)}

; } if (attribs.class === 'prettify') { return ( {domToReact(children, options)} ); } }, }; parse(html, options); ```

HTML output

```html

keep me and make me pretty!

```

#### replace element attributes Convert DOM attributes to React props with `attributesToProps`: ```tsx import parse, { attributesToProps } from 'html-react-parser'; const html = `

`; const options = { replace(domNode) { if (domNode.attribs && domNode.name === 'main') { const props = attributesToProps(domNode.attribs); return

; } }, }; parse(html, options); ```

HTML output

```html

```

#### replace and remove element [Exclude](https://replit.com/@remarkablemark/html-react-parser-56) an element from rendering by replacing it with ``: ```tsx parse('

', { replace: ({ attribs }) => attribs?.id === 'remove' && <>, }); ```

HTML output

```html

```

### transform The `transform` option allows you to transform each element individually after it's parsed. The `transform` callback's first argument is the React element: ```tsx parse('
', { transform(reactNode, domNode, index) { // this will wrap every element in a div return

{reactNode}

; }, }); ``` ### library The `library` option specifies the UI library. The default library is **React**. To use Preact: ```ts parse('
', { library: require('preact'), }); ``` Or a custom library: ```ts parse('
', { library: { cloneElement: () => { /* ... */ }, createElement: () => { /* ... */ }, isValidElement: () => { /* ... */ }, }, }); ``` ### htmlparser2 > [!WARNING] > `htmlparser2` options _**don't work** on the client-side_ (browser); they _**only work** on the server-side_ (Node.js). By overriding the options, it can break universal rendering. Default [htmlparser2 options](https://github.com/fb55/htmlparser2/wiki/Parser-options#option-xmlmode) can be overridden in >=[0.12.0](https://github.com/remarkablemark/html-react-parser/tree/v0.12.0). To enable [`xmlMode`](https://github.com/fb55/htmlparser2/wiki/Parser-options#option-xmlmode): ```ts parse('

', { htmlparser2: { xmlMode: true, }, }); ``` ### trim By default, whitespace is preserved: ```ts parse('
\n'); // [React.createElement('br'), '\n'] ``` But certain elements like `

` will strip out invalid whitespace: ```ts parse('

'); // React.createElement('table') ``` To remove whitespace, enable the `trim` option: ```ts parse('
\n', { trim: true }); // React.createElement('br') ``` However, intentional whitespace may be stripped out: ```ts parse('

', { trim: true }); // React.createElement('p') ``` ## Migration ### v5 Migrated to TypeScript. CommonJS imports require the `.default` key: ```ts const parse = require('html-react-parser').default; ``` If you're getting the error: ``` Argument of type 'ChildNode[]' is not assignable to parameter of type 'DOMNode[]'. ``` Then use type assertion: ```ts domToReact(domNode.children as DOMNode[], options); ``` See [#1126](https://github.com/remarkablemark/html-react-parser/issues/1126#issuecomment-1784188447). ### v4 [htmlparser2](https://github.com/fb55/htmlparser2) has been upgraded to [v9](https://github.com/fb55/htmlparser2/releases/tag/v9.0.0). ### v3 [domhandler](https://github.com/fb55/domhandler) has been upgraded to v5 so some [parser options](https://github.com/fb55/htmlparser2/wiki/Parser-options) like `normalizeWhitespace` have been removed. Also, it's recommended to upgrade to the latest version of [TypeScript](https://www.npmjs.com/package/typescript). ### v2 Since [v2.0.0](https://github.com/remarkablemark/html-react-parser/releases/tag/v2.0.0), Internet Explorer (IE) is no longer supported. ### v1 TypeScript projects will need to update the types in [v1.0.0](https://github.com/remarkablemark/html-react-parser/releases/tag/v1.0.0). For the `replace` option, you may need to do the following: ```tsx import { Element } from 'domhandler/lib/node'; parse('
', { replace(domNode) { if (domNode instanceof Element && domNode.attribs.class === 'remove') { return <>; } }, }); ``` Since [v1.1.1](https://github.com/remarkablemark/html-react-parser/releases/tag/v1.1.1), Internet Explorer 9 (IE9) is no longer supported. ## FAQ ### Is this XSS safe? No, this library is _**not**_ [XSS (cross-site scripting)](https://wikipedia.org/wiki/Cross-site_scripting) safe. See [#94](https://github.com/remarkablemark/html-react-parser/issues/94). ### Does invalid HTML get sanitized? No, this library does _**not**_ sanitize HTML. See [#124](https://github.com/remarkablemark/html-react-parser/issues/124), [#125](https://github.com/remarkablemark/html-react-parser/issues/125), and [#141](https://github.com/remarkablemark/html-react-parser/issues/141). ### Are `

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html-react-parser	1,924,403	2,318	470 kB	11	11日前	MIT