Free Online Data Matrix Generator

Generating & Printing Data Matrix 2D Barcode Images Online

Online Data Matrix Generator is developed based on OnBarcode Barcode Generator for .NET.


We are providing free online streaming barcode generation service. Now you can generate barcode image through the following url:

To get this free online service, please contact us

Watch a quick video tutorial and get started


The barcode generator is locked, and you cannot change barcode settings. To unlock it, please go to our YouTube online barcode generator video description section to get the free keycode.

Free barcode generator online video tutorial:

Data Matrix Barcode Settings
Barcode Encoding Data
Process Tilde
Data Matrix Data Mode
Data Matrix Format Mode
Is GS1 Compatible

Unlock Keycode
Data Matrix Barcode Image Size Settings
Enable Auto Resize
Bar Alignment
Unit of Measure
X (bar module width)  
Left Margin  
Right Margin  
Top Margin  
Bottom Margin  
Resolution (in dots per inch)
Barcode Image Width

(if image width is smaller than the barcode minimum width, the setting will be ignored)
Barcode Image Height

(if image height is smaller than the barcode minimum height, the setting will be ignored)
Image Format

Barcode Colors
Back Color  
Fore Color  

Online Barcode Generator Supporting Bar Code Types

OnBarcode barcode products

OnBarcode also provides the following libraries and components for generating, printing, scanning, and reading Data Matrix barcodes.

Barcode Software & Libraries

OnBarcode provides professional barcode software and libraries for you.

QR Code Software & DLLs

OnBarcode provides reliable & mature QR Code software and dlls for you.

  • QR Code in BIRT - creating, printing QR Code 2D barcode images and resize in Eclipse BIRT Report.
  • Read QR Code in .NET - reading, scanning QR Code bar codes in .NET projects using C# / VB.NET sample code.
  • QR Code in .NET - generating, creating QR Code matrix barcode images in .NET programs easily.
  • QR Code in C# - generating, printing QR Code barcodes in Visual C#.NET applications.
  • QR Code in VB.NET - creating, printing QR Code images in Visual Basic with VB.NET sample codes.
  • QR Code in .NET Crystal Report - printing, generating multiple QR Code images in Crystal Reports with tutorial.

Data Matrix Software & Components

OnBarcode provides complete Data Matrix barcode generating component, library, and SDK for you.

OnBarcode is a market-leading provider of barcode imaging generator, reader controls and components for ASP.NET, Windows Forms, WPF, as well Java, Android, iOS (iPhone, iPad) across all major enterprise development platforms. OnBarcode barcode products are supported by RasterEdge high quality .NET Imaging SDK, Java Imaging Library, and their easy and simple documents, like imaging in C#, imaging in VB.NET.
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