---
title: "Barcode Scanner"
url: https://docs.catalyst.zoho.com/en/sdk/javascript/v1/zia-services/barcode-scanner/
description: "This page describes the method to perform operations using the components in Zia Services."
last_updated: 2026-09-09T10:45:38Z
service: Zia Services
type: general
related_links:
  - name: "Catalyst Zia Services"
    url: /en/zia-services/
  - name: "Object Recognition Help Documentation"
    url: /en/zia-services/help/object-recognition/introduction/
  - name: "Java SDK Documentation"
    url: /en/sdk/java/v1/zia-services/barcode-scanner/
  - name: "Python SDK Documentation"
    url: /en/sdk/python/v1/zia-services/barcode-scanner/
  - name: "REST API Documentation"
    url: /en/api/code-reference/zia-services/barcode-scanner/#BarcodeScanner
repository:
  name: "Repository"
  url: https://github.com/catalystbyzoho/zcatalyst-sdk-js
---

# Barcode Scanner

> **Note:** Ensure you have installed the [required package](https://docs.catalyst.zoho.com/en/sdk/javascript/v1/zia-services/overview/#prerequisites) to use this SDK method.

[Zia Barcode Scanner](https://docs.catalyst.zoho.com/en/zia-services/help/barcode-scanner/introduction) enables you to scan the most commonly used linear and 2D barcode formats and decode the encoded data. Barcode Scanner can detect formats like Codabar, EAN-13, ITF, UPC-A, QR Code, and more.

You can provide an input file of the format *.jpg*/*.jpeg* or *.png*. Refer to the [API documentation](https://docs.catalyst.zoho.com/en/api/code-reference/zia-services/barcode-scanner/#BarcodeScanner) for the request and response formats.

You can specify the barcode format using `setFormat`. If you enter the format as `ALL`, the Barcode Scanner automatically detects the format. It provides the decoded information as the response.

The `zia` reference used in the code snippets below is the [component instance](https://docs.catalyst.zoho.com/en/sdk/javascript/v1/zia-services/get-zia-instance/) created to perform these operations. The promise returned here is resolved to a JSON object.

```javascript
const fs = require('fs');
const result = await zia.scanBarcode(fs.createReadStream('./barcode.png'), {format: 'code39'}); //Pass the input file and the format
console.log(result);
```

#### Example of Expected Response

A sample response that you will receive is shown below.

```json
{
  "content": "https://demo.dynamsoft.com/dbr_wasm/barcode_reader_javascript.html"
}
```