Close Icon
Get the Orca scan app QR code

Scan the QR code to download the mobile app

Code 39 Barcode Generator

How to generate a Code 39 barcode in 3 steps

1. Select a barcode type

2. Enter the barcode data

Barcode content
You can either manually input the barcode content or simply click the 'Randomise' button for automatic generation.
Barcode caption
Font size
  • Fit
  • 20
  • 30
  • 40
  • 50
  • 60
  • 70
Quantity
Need to create multiple unique barcodes?

Barcode preview

Customise your barcode

3. Generate the barcode image

File format

What is a Code 39 barcode?

Code 39 is a linear barcode symbology commonly used in logistics, government, and healthcare applications for encoding alphanumeric data. Unlike more dense barcodes like Code 128, Code 39 is simpler and can encode letters and numbers with ease, making it suitable for a variety of industries. It is widely used for applications where moderate-length data strings are needed and can be easily printed and scanned.

How much data can a Code 39 barcode hold?

A Code 39 barcode can hold up to 43 characters, including a combination of uppercase letters (A-Z), numeric digits (0-9), and a limited set of special characters. Unlike other barcodes like EAN-8 or UPC, Code 39 is not limited to just numeric data, but it is less space-efficient due to its encoding method, where each character is represented by 9 elements (bars and spaces).

How to generate multiple code-39 barcodes

You can use Orca Scan web or mobile application to generate multiple code-39 barcodes using the following steps:

Import a spreadsheet of barcode data

To generate barcodes from a spreadsheet of data:

  1. Create a free Orca Scan account
  2. Import your spreadsheet of barcodes
  3. Select the barcodes you wish to generate
  4. Open the Barcode Preview on the left
  5. Select the Barcode Type
  6. Click Download or Print

Scan barcodes on existing products

To generate barcode images for existing products:

  1. Scan your products using the Orca Scan mobile app
  2. Login to the Orca Scan web app
  3. Select the barcodes you wish to generate
  4. Open the Barcode Preview on the left
  5. Select the Barcode Type
  6. Click Download or Print

How to generate code-39 barcodes programmatically

You can generate Code 39 barcodes programmatically using our Barcode Image API. Simply pass the desired data and barcode type as URL parameters. For example: https://barcode.orcascan.com/?type=code39&data=0123456789

Need help generating barcodes?

We've helped over 350,000 users solve barcode tracking issues. For expert advice on barcode generation, chat to us live.

Ready to start scanning?

Get Started Book a demo