Bulk QR Code Generator — Create 100s of QR Codes from CSV

Creating QR codes one at a time is fine for small projects. But what if you need to generate hundreds or thousands of QR codes for inventory management, event ticketing, or large-scale marketing campaigns?

That's where a bulk QR code generator comes in. In this tutorial, we'll show you how to use QRastra's Bulk Generator to create hundreds of QR codes from a CSV file in minutes — completely free and private.

1. What is a Bulk QR Code Generator?

A bulk QR code generator is a tool that creates multiple QR codes at once from a data source like a CSV file. Instead of manually entering each URL or data item, you upload a spreadsheet with your data, and the generator creates QR codes for every row.

QRastra's bulk QR code generator is 100% browser-based. Your CSV file is processed locally — never uploaded to any server. This means your data stays private and secure.

2. When to Use Bulk QR Generation

• Inventory Management: Generate QR codes for every product with unique SKUs
• Event Ticketing: Create unique QR codes for each ticket or attendee
• Marketing Campaigns: Generate QR codes for multiple landing pages or promotions
• Product Labeling: Create QR codes for product packaging with serial numbers
• Employee Badges: Generate QR codes for employee IDs or access cards
• Asset Tracking: Create QR codes for equipment, tools, or assets

3. Preparing Your CSV File

Your CSV file should be structured with columns that match the QR type you want to generate.

Example CSV for URL QR Codes

Example CSV for UPI QR Codes

4. Step-by-Step Guide to Bulk QR Generation

Step 1: Open the Bulk Generator

Launch QRastra's QR Generator and navigate to the Bulk Generator section.

Step 2: Upload Your CSV File

Click the upload button and select your CSV file. The file is read locally in your browser — never uploaded to any server.

Step 3: Map Your Columns

Map the columns in your CSV to the QR code fields:

• Select the column that contains the data you want to encode
• Choose the QR type (URL, WiFi, UPI, vCard, etc.)
• Map additional fields if needed (e.g., amount for UPI)

Step 4: Customize Your QR Codes

Apply consistent styling to all QR codes in your batch:

• Choose colors (foreground and background)
• Select corner style (standard, rounded, square)
• Upload a logo to appear on all QR codes
• Choose error correction level (recommend Level H for logos)

Step 5: Generate and Download

Click Generate and wait for the QR codes to be created. Then download your QR codes as a ZIP file with organized naming and folders.

5. Customizing Your Bulk QR Codes

QRastra's bulk generator allows you to apply consistent customization to all QR codes in your batch:

• Colors: Use your brand colors across all QR codes
• Logo: Add your company logo to the center of every QR code
• Corner Styles: Choose rounded or square corners for brand consistency
• Error Correction: Level H (30% recovery) for codes with logos
• Size: Choose the output size (e.g., 1024×1024 pixels)
• Format: PNG, SVG, PDF, JPG, or WebP

6. Downloading Your QR Codes

Once generated, your QR codes can be downloaded as a ZIP file with:

• Organized folders: Codes are grouped by type or batch
• Naming options: Name files using CSV columns (e.g., product name)
• High resolution: 300 DPI or higher for print readiness
• Multiple formats: PNG, SVG, PDF, JPG, or WebP

7. Best Practices for Bulk QR Generation

Before Generating

• Validate your CSV data before uploading
• Test with a small batch first (3-5 rows)
• Ensure URLs are complete and working
• Check for special characters that may need encoding

After Generating

• Test a sample of QR codes with multiple scanners
• Verify naming and folder structure
• Check image quality and resolution

8. FAQs About Bulk QR Generation

Is bulk QR generation free?

Yes. QRastra's bulk generator is completely free with no usage limits.

Is my CSV data safe?

Yes. Your CSV file is processed locally in your browser. No data is uploaded to any server.

How many QR codes can I generate?

There's no limit. You can generate hundreds or thousands of QR codes from a single CSV.

What QR types are supported?

All 16+ QR types are supported — URL, WiFi, vCard, UPI, Email, SMS, Phone, WhatsApp, and more.

What file formats are supported?

PNG, SVG, PDF, JPG, and WebP.

Conclusion

Bulk QR code generation saves time and effort. Whether you're managing inventory, planning events, or running marketing campaigns, QRastra's bulk generator makes it easy to create hundreds of QR codes from a CSV file — completely free and private.