A barcode is a machine-readable representation of numbers and characters, displayed as a series of lines and spaces. Barcodes help businesses and individuals track items quickly and accurately. From supermarket checkout counters to warehouse inventory, barcodes simplify data entry and reduce errors.

How Does It Work and Why Are Barcodes Used?

When a barcode is scanned, the lines and spaces are converted into digital data that represents the product or item. This data can include product codes, prices, or batch information. Businesses use barcodes because they:

Speed up checkout and inventory processes
Reduce human errors in data entry
Provide a low-cost way to label and track items
Work globally across different industries

How to Create a Barcode Online for Free

Our free Barcode Generator tool makes it simple to create custom barcodes without installing software.

Enter the text or numbers you want encoded.
Select the barcode format that fits your needs (like EAN-13, UPC-A, or CODE128).
Customize width, height, colors, and font options.
Preview the barcode instantly.
Download as PNG or JPEG, or share using the built-in share option.

This free barcode generator online works on both desktop and mobile devices, so you can create barcodes anytime.

Best Barcode Formats for Products and Business Use

Not every barcode format is the same. Here are common choices supported by this tool:

UPC-A / UPC-E – standard in retail stores for product labeling
EAN-13 / EAN-8 – widely used in Europe and global retail systems
CODE128 – flexible format suitable for shipping and logistics
ITF-14 – used for carton labeling and supply chain tracking
Codabar / Pharmacode – common in healthcare and library systems

Choosing the right format ensures compatibility with your scanners and software.

Features of This Barcode Generator Tool

This online Barcode Generator offers:

Multiple Barcode Formats

Supports popular formats like UPC, EAN, CODE128, ITF, MSI, Codabar, and more.

Live Barcode Preview

See your barcode instantly update as you type and adjust settings.

Full Customization

Change bar width, height, margins, background color, line color, fonts, and text alignment.

Easy Download & Share

Download your barcode in PNG or JPEG format, or share directly using the Web Share option.

Mobile-Friendly Design

Generate and customize barcodes smoothly on both desktop and mobile devices.

Benefits of Using Online Barcode Generator Tools

Using an online tool instead of manual coding or expensive software saves time and money. Benefits include:

Accessibility: Works directly in your browser, no installation needed
Flexibility: Supports many barcode types for different industries
Free to use: Generate unlimited barcodes for your inventory or business
Mobile friendly: Create barcodes on the go, right from your smartphone
Convenience: Customize and download in seconds

Frequently Asked Questions (FAQs)

Yes. This is a free barcode generator online that allows you to create unlimited barcodes without signup or installation.

For retail and supermarket products, UPC-A or EAN-13 are the most widely accepted formats. Our Barcode Generator supports both.

Simply enter the product code or item number in the text box, choose a barcode format like CODE128 or ITF-14, customize the size and color, then download or share your barcode instantly.

Yes. The barcodes generated are industry-standard formats and will work with most barcode scanners and POS systems, as long as you select the right format.

Absolutely. With this Barcode Generator you can adjust width, height, margins, colors, and fonts. You can also choose to display or hide the text below the barcode.