Online Barcode Generator
Data Matrix
PDF-417
QR Code
Codabar
Code 2 of 5
Code 11
Code 39
Code 93
Code 128
EAN-8
EAN-13
EAN-128 / GS1-128
Identcode
Interleaved 2 of 5
ISBN
ISSN
ITF-14
Leitcode
MSI Plessey
USPS Intelligent Mail
Planet
Postnet
RM4SCC
UPC-A
UPC-E
Tutorials for Barcoding
Generate barcode in .NET
Generate barcode in C#
Generate barcode in VB.NET
Generate barcode in ASP.NET
Generate barcode in .NET WinForms
Generate barcode in Crystal Reports
Generate barcode in RDLC report
Generate barcode in SSRS
Generate barcode in Excel
Generate barcode in Word
Generate barcode in Java
Generate barcode in BIRT report
Generate barcode in Jasper reports
Generate barcode in iReport
Online Barcode Generator > Generate UPC-A
This is a free web-based online barcode generator, designed for users to easily generate UPC-A, UPC-A+2, UPC-A+5 linear barcodes in Jpeg, Gif and Png image formats. Various parameter settings are available such as barcode size, rotation, resolution, image formats, text font etc. For more settings or barcode integrations, please refer to KeepAutomation barcode solutions, including:




NOTE

We are providing free online barcode generation service through url. You can generate barcode image in your web server through the following url:

https://www.keepautomation.com/linear.aspx?TYPE=4&DATA=123456789

To get this free online service, please contact us support@keepautomation.com

Watch a quick video: how to get a free keycode and apply it?





Barcode Image Setting
ParameterValueNote
Symbology
Code to EncodeValid Input: 11 numeric digits
Supplement CodeInput a 2-digit or 5-digit numeric data
Supplement HeightRatio between supplement bar height & primary bar height
Supplement SpaceSpace between supplement barcode and primary barcode
Unit of MeasurePixel, Cm and Inch to select
X (Bar Width)Minimum is 1 pixel
Y (Bar Height)
Orientation0, 90, 180, 270 degrees to select
DPI
Image FormatPng, Gif and Jpeg available
Left MarginA 10x margin is pre-added as specified
Right MarginA 10x margin is pre-added as specified
Show TextSet true to display data text under image
Text Font SizeFont size of the human readable text
Unlock Keycode




Checksum digit is automatically calculated and added!

Right click the barcode and select "save as" to save the image to your computer.


UPC-A Barcode SDK Library
UPC-A for .NET UPC-A for C# UPC-A for Excel UPC-A for Crystal Reports
UPC-A for ASP.NET UPC-A for VB.NET UPC-A for Word UPC-A for Reporting Services
UPC-A for .NET WinForms UPC-A for Java UPC-A Font UPC-A for RDLC Reports


What is barcode UPC-A?

The "UPC-A bar code" is by far the most common and well-known symbology, at least in the United States.

UPC-A Data Code Encoding

Supported characters and data length

UPC-A barcode can encode numeric data from 0 through 9.

UPC-A encodes 11 digits of numeric (0-9) data along with a trailing check digit, for a total of 12 digits of UPC-A bar code data.

UPC-A may be accompanied by an add-on symbol (2 digits or 5 digits)

To create UPC-A barcodes online using free online barcode generator web app, you need choose barcode type as "UPC-A", "UPC-A +2" or "UPC-A +5).

UPC-A Check Digit

The UPC-A checksum digit is based on a modulo 10 calculation based on the weighted sum of the values of each of the data digits.

Using free online UPC-A barcode generator web app, you can input 11 digits data without the last check sum digit. The online barcode software will always calculate the check digit based on your code first 11 digits.
If you find KA.Online UPC-A Barcode Generator useful,
Please embed the code below in your website or blog to link to the free online barcode creator!
KeepAutomation Free Online Barcode Generator
KeepAutomation provides complete barcode automation solutions for Business Application, Enterprise Developement Project, and mobile applications for Microsoft Office Word, Excel, Visual Studio .net, Java, iOS, Android, and various major Reporting platforms.