React Markdown Preview
===
[](https://github.com/uiwjs/react-markdown-preview/issues)
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[](https://github.com/uiwjs/react-markdown-preview/releases)
[](https://www.npmjs.com/package/@uiw/react-markdown-preview)
[](https://uiwjs.github.io/npm-unpkg/#/pkg/@uiw/react-markdown-preview/file/README.md)
React component preview markdown text in web browser. The minimal amount of CSS to replicate the GitHub Markdown style. The current [document website](https://uiwjs.github.io/react-markdown-preview/) is converted using this react component.
## Quick Start
```bash
$ npm install @uiw/react-markdown-preview --save
```
## Usage Example
[](https://codesandbox.io/embed/react-markdown-preview-co1mj?fontsize=14&hidenavigation=1&theme=dark)
```js
import MarkdownPreview from '@uiw/react-markdown-preview';
const source = `
## MarkdownPreview
> todo: React component preview markdown text.
`;
function Demo() {
return (
)
}
```
### Options Props
```typescript
import { ReactMarkdownProps } from 'react-markdown';
type MarkdownPreviewProps = {
className?: string;
source?: string;
style?: React.CSSProperties;
warpperElement?: HTMLDivElement;
onScroll?: (e: React.UIEvent) => void;
onMouseOver?: (e: React.MouseEvent) => void;
} & ReactMarkdownProps;
```
- `source` (`string`, default: `''`)\
Markdown to parse
- `className` (`string?`)\
Wrap the markdown in a `div` with this class name
This [`ReactMarkdownProps`](https://github.com/remarkjs/react-markdown/tree/15b4757082cf3f32a25eba0b8ea30baf751a8b40#props) details. [Upgrade `react-markdown` v6](https://github.com/remarkjs/react-markdown/blob/15b4757082cf3f32a25eba0b8ea30baf751a8b40/changelog.md#600---2021-04-15)
- `children` (`string`, default: `''`)\
Markdown to parse
- `className` (`string?`)\
Wrap the markdown in a `div` with this class name
- `skipHtml` (`boolean`, default: `false`)\
Ignore HTML in Markdown completely
- `sourcePos` (`boolean`, default: `false`)\
Pass a prop to all components with a serialized position
(`data-sourcepos="3:1-3:13"`)
- `rawSourcePos` (`boolean`, default: `false`)\
Pass a prop to all components with their [position][]
(`sourcePosition: {start: {line: 3, column: 1}, end:…}`)
- `includeElementIndex` (`boolean`, default: `false`)\
Pass the `index` (number of elements before it) and `siblingCount` (number
of elements in parent) as props to all components
- `allowedElements` (`Array.`, default: `undefined`)\
Tag names to allow (can’t combine w/ `disallowedElements`).
By default all elements are allowed
- `disallowedElements` (`Array.`, default: `undefined`)\
Tag names to disallow (can’t combine w/ `allowedElements`).
By default no elements are disallowed
- `allowElement` (`(element, index, parent) => boolean?`, optional)\
Function called to check if an element is allowed (when truthy) or not.
`allowedElements` / `disallowedElements` is used first!
- `unwrapDisallowed` (`boolean`, default: `false`)\
Extract (unwrap) the children of not allowed elements.
By default, when `strong` is not allowed, it and it’s children is dropped,
but with `unwrapDisallowed` the element itself is dropped but the children
used
- `linkTarget` (`string` or `(href, children, title) => string`, optional)\
Target to use on links (such as `_blank` for ` string`, default:
[uri-transformer.js](https://github.com/remarkjs/react-markdown/blob/15b4757082cf3f32a25eba0b8ea30baf751a8b40/src/uri-transformer.js), optional)\
URL to use for links.
The default allows only `http`, `https`, `mailto`, and `tel`, and is
available at `ReactMarkdown.uriTransformer`.
Pass `null` to allow all URLs.
See [security][]
- `transformImageUri` (`(src, alt, title) => string`, default:
[uri-transformer.js](https://github.com/remarkjs/react-markdown/blob/15b4757082cf3f32a25eba0b8ea30baf751a8b40/src/uri-transformer.js), optional)\
Same as `transformLinkUri` but for images
- `components` (`Object.`, default: `{}`)\
Object mapping tag names to React components
- `remarkPlugins` (`Array.`, default: `[]`)\
List of [remark plugins](https://github.com/remarkjs/remark/blob/main/doc/plugins.md#list-of-plugins) to use.
See the next section for examples on how to pass options
- `rehypePlugins` (`Array.`, default: `[]`)\
List of [rehype plugins](https://github.com/rehypejs/rehype/blob/main/doc/plugins.md#list-of-plugins) to use.
See the next section for examples on how to pass options
## Development
Runs the project in development mode.
```bash
# Step 1, run first,
# listen to the component compile and output the .js file
# listen for compilation output type .d.ts file
npm run watch
# listen to the component compile and output the .css file
npm run css:watch
# Step 2, development mode, listen to compile preview website instance
npm start
```
Builds the app for production to the build folder.
```bash
npm run build
```
The build is minified and the filenames include the hashes.
Your app is ready to be deployed!
### Related
If you need more features-rich Markdown Editor, you can use [@uiwjs/react-markdown-editor](https://github.com/uiwjs/react-markdown-editor)
- [@uiw/react-codemirror](https://github.com/uiwjs/react-codemirror): CodeMirror component for React. @codemirror
- [@uiw/react-monacoeditor](https://github.com/jaywcjlove/react-monacoeditor): Monaco Editor component for React.
- [@uiw/react-markdown-editor](https://github.com/uiwjs/react-markdown-editor): A markdown editor with preview, implemented with React.js and TypeScript.
- [@uiw/react-md-editor](https://github.com/uiwjs/react-md-editor): A simple markdown editor with preview, implemented with React.js and TypeScript.
## License
Licensed under the MIT License.