How do I make a barcode online?

Pick a barcode type, type the number or text to encode, and the barcode appears immediately. Use Download PNG to save it, or Copy to put the image on your clipboard.

Which barcode type should I use?

CODE128 is the most common general-purpose choice and handles letters and digits. EAN-13, EAN-8 and UPC-A are for retail products, ITF-14 is for shipping cartons, CODE39 is a simple alphanumeric format, and the others suit niche uses such as Pharmacode for pharmaceutical packaging and Codabar for libraries.

Why do I get an error for my EAN-13 number?

EAN-13 takes only digits. Enter 12 digits and the check digit is calculated for you, or enter 13 digits where the last one is the correct check digit. A 13-digit number with a wrong check digit is rejected, including the sample number the EAN-13 button fills in.

Can I use it to create real product barcodes?

It draws the barcode image only. For products sold in shops you need EAN or UPC numbers issued through GS1 for your company, and the tool cannot provide or verify them.

Can I change the colors or export an SVG?

No. The bars are black on a white background and the download is a PNG. You can change bar width, height, margin and the size of the text under the bars, or hide that text.

Does the barcode scan?

A correctly encoded barcode with enough contrast and size scans with ordinary scanners and phone apps. Check each barcode with the scanner you will use, especially after making it small.

Data

Barcode Generator

Generate barcodes in multiple formats: EAN, UPC, Code128, and more. Runs on your device — nothing is uploaded, nothing is stored.

Input

Enter the data you want to encode as a barcode

Barcode Type

Data to Encode

Sample Data

Settings

Customize your barcode appearance

Bar Width:

Height:100px

Font Size:20px

Margin:10px

Download Filename

Barcode

Your generated barcode

Barcode Types

CODE128

Most common barcode format

CODE39

Alphanumeric barcode

EAN-13

13-digit product barcode

EAN-8

8-digit product barcode

UPC-A

12-digit product barcode

ITF-14

14-digit shipping barcode

MSI

Inventory management

Pharmacode

Pharmaceutical packaging

Codabar

Library and blood banks

CODE93

Enhanced version of CODE39

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About Barcode Generator

This tool turns a number or short text into a barcode image. Choose a barcode type, type the data to encode, and the barcode is drawn straight away on a white background. Download it as a PNG with a file name you set, or copy the image to the clipboard.

It supports ten formats through the JsBarcode library: CODE128, CODE39, EAN-13, EAN-8, UPC-A, ITF-14, MSI, Pharmacode, Codabar and CODE93. You can adjust bar width (1 to 5), bar height (50 to 200 px), margin (0 to 30 px) and the size of the text printed under the bars (10 to 30 px), or hide that text. The bars are always black on white. Sample buttons fill in example data for CODE128, EAN-13, UPC-A and CODE39.

Why this runs on your device

The barcode is drawn on a canvas in your browser by a library bundled with the site, so the number you encode is never sent to a server. That is useful for internal inventory codes or serial numbers you do not want to type into a third-party generator.

How to use Barcode Generator

Choose the barcode type.
Type the number or text to encode, or press a sample button.
Adjust bar width, height, margin and the printed text if needed.
Download the PNG or copy the image to the clipboard.

Limitations and trade-offs

Each format only accepts certain characters, and the tool does not validate as you type. If the data does not fit the format (letters in EAN-13, the wrong length, a bad check digit) you get an error message and the barcode on screen is not updated.
For EAN-13, EAN-8 and ITF-14 you should enter one digit fewer than the full length (12, 7 or 13 digits) and the check digit is added for you. If you enter the full length, the last digit must already be the correct check digit. The EAN-13 and EAN-8 sample buttons fill in numbers whose check digit is wrong, so they produce an error instead of a barcode; edit the last digit or delete it.
A barcode that looks right on screen is not a registered product code. Retail EAN and UPC numbers come from GS1 prefixes issued to your company, and this tool cannot create or check those.
The output is a PNG only, with no SVG or PDF export, and the colors cannot be changed. For print, make the barcode large and test it with a scanner before you rely on it.
Characters outside the format's set, such as accented letters in CODE128, are not accepted.

Frequently asked questions

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