Syncfusion Blazor Barcode Generator

Syncfusion's Blazor Barcode Generator package (Syncfusion.Blazor.BarcodeGenerator) provides three components for generating barcodes in Blazor applications:

Component	Use For
`SfBarcodeGenerator`	1D linear barcodes (Code39, Code128, Codabar, etc.)
`SfQRCodeGenerator`	QR codes with optional logo embedding
`SfDataMatrixGenerator`	2D Data Matrix codes for compact encoding

All three work in Blazor Server, Blazor WebAssembly, and Blazor Web App (.NET 8+).

When to Use This Skill

User needs to render or display a barcode in a Blazor component
User asks about QR code generation (e.g., product links, 2FA, contact cards)
User needs Data Matrix codes (pharmaceutical, logistics, label printing)
User is configuring SfBarcodeGenerator, SfQRCodeGenerator, or SfDataMatrixGenerator
User asks about exporting a barcode as an image (JPG/PNG) or Base64
User asks about barcode types, error correction, checksums, or validation events
User is embedding a logo in a QR code

Navigation Guide

Setting Up the Project

📄 Read: references/getting-started.md

NuGet package installation
_Imports.razor namespace configuration
Service registration in Program.cs
Stylesheet and script references
Setup for Blazor Server, WebAssembly, and Web App
Adding the first barcode component to a page

1D Barcode Types and Configuration

📄 Read: references/barcode-types.md

All supported BarcodeType enum values with descriptions
Code39, Code39 Extended, Code11, Code32, Code93, Codabar, Code128
Choosing the right type for your use case
EnableCheckSum configuration
OnValidationFailed event handling

QR Code Generator

📄 Read: references/qr-code-generator.md

Basic QR code usage
Error correction levels (L, M, Q, H)
Embedding a logo image in the QR code center
Customizing logo size
Color, dimension, and display text customization
OnValidationFailed event

Data Matrix Generator

📄 Read: references/data-matrix-generator.md

Basic Data Matrix code usage
Color, dimension, and display text customization
Common use cases (pharmaceuticals, labels)
OnValidationFailed event

Exporting and Customizing Barcodes

📄 Read: references/export-and-customization.md

Export barcode to image file (JPG/PNG)
Export as Base64 string
ForeColor for custom barcode color
Width / Height for sizing
BarcodeGeneratorDisplayText for label text
Applies to all three generator types

Quick Start Examples

1D Barcode

@using Syncfusion.Blazor.BarcodeGenerator

<SfBarcodeGenerator Width="200px" Height="150px"
                    Type="@BarcodeType.Code128"
                    Value="SYNCFUSION">
</SfBarcodeGenerator>

QR Code

@using Syncfusion.Blazor.BarcodeGenerator

<SfQRCodeGenerator Width="200px" Height="200px"
                   Value="https://www.syncfusion.com">
</SfQRCodeGenerator>

Data Matrix

@using Syncfusion.Blazor.BarcodeGenerator

<SfDataMatrixGenerator Width="200" Height="150"
                       Value="SYNCFUSION">
</SfDataMatrixGenerator>

Key Properties

Property	Applies To	Description
`Value`	All	The data string to encode
`Width`	All	Width of the barcode (px or %)
`Height`	All	Height of the barcode (px or %)
`Type`	`SfBarcodeGenerator`	`BarcodeType` enum — selects the 1D symbology
`ForeColor`	All	Color of the barcode bars (e.g., `"red"`, `"#333"`)
`EnableCheckSum`	`SfBarcodeGenerator`	Adds/validates checksum digit (default `true` for Code39)
`ErrorCorrectionLevel`	`SfQRCodeGenerator`	QR error recovery: Low, Medium, Quartile, High
`OnValidationFailed`	All	Event triggered when `Value` contains invalid characters

Common Use Cases

Need	Component	Read
Product/inventory labels	`SfBarcodeGenerator` (Code128/Code39)	barcode-types.md
URL / contact / 2FA QR code	`SfQRCodeGenerator`	qr-code-generator.md
Branded QR code with logo	`SfQRCodeGenerator` + `QRCodeLogo`	qr-code-generator.md
Pharmaceutical / shipping labels	`SfDataMatrixGenerator`	data-matrix-generator.md
Download barcode as image	`.Export()` method	export-and-customization.md
Embed barcode in email/PDF	`.ExportAsBase64Image()`	export-and-customization.md

syncfusion-blazor-barcode