Barcode Generator

Tool Guide

About the Online Barcode Generator

An online barcode generator that lets you easily create many types of barcodes. It supports configuring the background color, foreground color, barcode size, and more, so you can easily create personalized barcodes.

A barcode is a graphical identifier that expresses a set of information by arranging multiple black bars and blank spaces of varying widths according to certain encoding rules.

A common barcode consists of a pattern of parallel lines made up of black bars ("bars") and white spaces ("spaces") with very different reflectivity.

Barcodes can encode a great deal of information, such as a product's country of production, manufacturer, product name, production date, book classification number, mail origin and destination, category, date, and more.

As a result, they are widely used in many fields, including commodity distribution, library management, postal management, and banking systems.

This tool supports generating custom-configured barcodes online. After you change a setting, the barcode is generated and updated instantly—no need to click a button. Once generated, click the barcode or the button to download it.

If clicking Download does nothing, right-click or long-press the image to save it manually. Barcodes can carry only a limited amount of information; if you need to carry a large amount of text, you can use the Web Clipboard.

How to Use the Online Barcode Generator

Step 1: Enter the barcode data (such as a product number or serial number).

Step 2: Select the barcode format (Code 128).

Step 3: Customize the settings (adjust the barcode width, height, background color, foreground color, etc.).

Step 4: Preview the barcode in real time (the barcode updates automatically when parameters change).

Step 5: Click the barcode or the "Download" button to save it to your device.

Tip: The barcode data must comply with the encoding rules of the selected format, or it may not generate correctly. After generating a barcode, if it does not download automatically, right-click or long-press the image to save it manually.

Barcode Generation FAQ

What is the difference between a barcode and a QR code?

A barcode is primarily a one-dimensional code, suitable for storing short numeric or alphabetic information, and is commonly used for product barcodes, book numbers, and the like.

A QR code is a two-dimensional code that can store more content, such as URLs, text, and business card information, and is suitable for scenarios like mobile payments and product traceability.

If you need to generate QR codes, you can use the Online QR Code Batch Generator.

Can the generated barcode be printed?

Yes! The generated barcode is a clear image that can be downloaded and printed directly, suitable for label printing, product packaging, document management, and more.

Can a barcode store Chinese characters?

Most barcodes only support numbers and English characters and do not support Chinese; this tool likewise supports only numbers and English characters.