---
category: '@Integrations'
---

# useQRCode

Wrapper for [`qrcode`](https://github.com/soldair/node-qrcode).

## Install

```bash
npm i qrcode@^1
```

## Usage

```ts
import { useQRCode } from '@vueuse/integrations/useQRCode';

// `qrcode` will be a ref of data URL
const qrcode = useQRCode('text-to-encode');
```

or passing a `ref` to it, the returned data URL ref will change along with the source ref's changes.

```ts
import { useQRCode } from '@vueuse/integrations/useQRCode';
import { shallowRef } from 'vue';

const text = shallowRef('text-to-encode');
const qrcode = useQRCode(text);
```

```html
<input v-model="text" type="text" /> <img :src="qrcode" alt="QR Code" />
```

## Type Declarations

```ts
/**
 * Wrapper for qrcode.
 *
 * @see https://vueuse.org/useQRCode
 * @param text
 * @param options
 */
export declare function useQRCode(
  text: MaybeRefOrGetter<string>,
  options?: QRCode.QRCodeToDataURLOptions,
): ShallowRef<string, string>;
```
