How It Works
Generate hundreds of QR codes and barcodes in just 4 simple steps. Also explore Discover our partner tools
Prepare Your Data
Start by organizing your data in a CSV or Excel file. Each row represents one code to generate.
Example CSV:
id,url,label
001,https://example.com/product-1,Product A
002,https://example.com/product-2,Product B
003,https://example.com/product-3,Product C
- Use our CSV templates for common use cases
- Supports up to 1000 codes per batch
- Both CSV and Excel (.xlsx) formats supported
Upload & Preview
Upload your file and preview the first 10 rows to ensure everything looks correct.
- Drag and drop or click to upload
- Automatic validation detects duplicate entries
- Map your CSV columns to code data fields
Customize Your Codes
Choose code type and customize appearance to match your brand or requirements.
QR Code Types
- • URL / Website Link
- • Plain Text
- • vCard (Contact Info)
- • Email Address
- • Phone Number
- • WiFi Credentials
Barcode Types
- • UPC-A (Retail Products)
- • EAN-13 (International)
- • Code 128 (General Purpose)
- • Code 39 (Alphanumeric)
Customization options:
- • Size (pixels)
- • Colors (foreground & background)
- • Error correction level (QR codes)
- • Output format (PNG or SVG)
Generate & Download
Click generate and watch as your codes are created in seconds. Download everything in one click.
- Lightning-fast generation (500 codes in under 30 seconds)
- Real-time progress tracking
- Download as ZIP file or individual files
- Print-ready PDFs with Avery label templates
- Auto-saved to history for regeneration
Key Features
Lightning Fast
Generate 500 codes in under 30 seconds
100% Client-Side
All processing happens in your browser. Your data never leaves your device.
Completely Free
No signup, no limits, no hidden costs
Fully Customizable
Control size, colors, format, and more
Frequently Asked Questions
Common questions about using the bulk QR code generator
What file size limits are there?
CSV and Excel files up to 10MB are supported. This typically allows for 10,000+ rows of data. Individual files are limited based on browser performance.
Do I need to create an account?
No account is required. All processing happens in your browser for maximum privacy. Your data never leaves your device.
What QR code types are supported?
We support URL/links, Plain Text, vCard (contact cards), Email, Phone, SMS, WiFi credentials, and Calendar events.
Can I customize colors and size?
Yes! You can customize foreground and background colors, size (pixels), error correction level, and output format (PNG or SVG).
Is my data stored anywhere?
All data processing happens locally in your browser. Nothing is uploaded to our servers. Generation history is stored locally using browser storage (IndexedDB) and can be cleared at any time.
What export formats are available?
You can export as individual PNG/SVG files, a single ZIP file with all codes, or print-ready PDFs with Avery label templates (5160, 5163, 5260, and more).
Best Practices
Follow these guidelines for optimal QR code results
Test Before Bulk Printing
Always generate and test a small batch (5-10 codes) with your actual scanning equipment before creating thousands of codes. This ensures compatibility and readability.
Choose Appropriate Error Correction
For QR codes that may get damaged or printed on curved surfaces, use Medium (15%) or High (30%) error correction. Low is fine for digital-only codes.
Use Adequate Size for Print
For physical printing, use at least 300x300px (preferably 400-500px) for QR codes to ensure scannability from a reasonable distance. Barcodes should be sized based on industry standards.
Maintain High Contrast
Dark foreground on light background works best. Black on white is ideal. Avoid low-contrast combinations like gray on white or colored codes on similar backgrounds.
Validate Barcode Numbers
UPC-A and EAN-13 barcodes require specific check digits. Use our validation warnings during upload to catch errors before generation.
Use SVG for Scalability
If you need to resize codes later, export as SVG instead of PNG. SVG is a vector format that scales perfectly to any size without quality loss.
QR Code Error Correction Levels
QR codes have built-in error correction that allows them to be scanned even when damaged. Higher levels can recover from more damage but create denser codes.
| Level | Data Recovery | Best For | Density | Logo Embedding |
|---|---|---|---|---|
L (Low)7% | Recovers up to 7% of data | Clean environments, URL shorteners, temporary codes | Smallest | Small logos only (5-10%) |
M (Medium)15% | Recovers up to 15% of data | Digital displays, business cards, general marketing | Medium | Medium logos (10-15%) |
Q (Quartile)25% | Recovers up to 25% of data | Outdoor use, printed materials, packaging | Dense | Larger logos (15-20%) |
H (High)30% | Recovers up to 30% of data | Industrial use, harsh conditions, long-term durability | Densest | Best for logos (20-25%) |
Choosing the Right Level
- • Start with M (Medium) for most use cases - good balance of reliability and size
- • Use H (High) when embedding logos or if codes will be in harsh environments
- • Use L (Low) only for clean, controlled environments where space is limited
- • Remember: Higher error correction = larger, denser QR codes that need bigger print sizes