Free Barcode Generator Online - Create Code128, EAN13, UPC-A Barcodes
Free online barcode generator. Create Code128, EAN13, UPC-A, and other barcode types instantly. Perfect for retail, inventory, and product labeling.
Runs in your browser
WebAssembly, no server
No signup required
Open and use instantly
Files stay private
Nothing leaves your device
How It Works
Select barcode type (Code128, EAN13, UPC-A)
Enter your barcode data/numbers
Adjust size and format options
Key Features
- Generate Code128 barcodes
- Create EAN13 barcodes
- Make UPC-A barcodes
- High-resolution output
- Customizable barcode size
- Download as PNG/SVG
- Copy barcode data
- Real-time preview
- Multiple barcode formats
- No registration required
- Browser-based processing
- Instant generation
- Batch barcode generation
- PDF export format
- EPS vector format
- Color customization
- Text display toggle
- Error correction options
- Mobile responsive
- High DPI printing support
About This Tool
Generate professional barcodes online with our free Barcode Generator. Create Code128, EAN13, UPC-A, and other standard barcode formats instantly. Perfect for retail businesses, inventory management, product labeling, and e-commerce. Our tool generates high-quality, scannable barcodes with customizable options. All processing happens in your browser - no data is uploaded or stored.
What is a Barcode? A barcode is a machine-readable optical label containing data about an item. Unlike QR codes which are 2D, traditional barcodes are 1D and contain numeric or alphanumeric data. Barcodes revolutionized retail by enabling fast, accurate product identification and inventory tracking.
Types of Barcodes: CODE128 is the most versatile, supporting full ASCII characters for shipping and inventory. EAN-13 is the 13-digit retail barcode used worldwide for consumer products. UPC-A is the 12-digit North American retail standard for consumer goods and POS systems.
QR vs Barcode: QR codes store more data and can be scanned from any angle, while barcodes are faster in linear motion and more reliable for retail environments.
Use Cases: Retail products use EAN-13/UPC-A, inventory systems use Code128, shipping labels use Code128, POS systems use UPC-A, and asset tracking uses Code128.
Benefits: No software installation, instant generation, multiple formats, high-resolution output, cost-effective for businesses, and browser-based privacy.
Frequently Asked Questions
We support Code128, EAN13, UPC-A, Code39, ITF, and Codabar formats for different business needs.
Use EAN-13 for retail products, UPC-A for North American markets, and Code128 for inventory and shipping.
Yes, all generated barcodes can be used commercially for business purposes without restrictions.
EAN-13 is international (13 digits), UPC-A is North American (12 digits). EAN-13 includes a check digit.
Use high contrast, minimum 2cm height, test with multiple scanners, and ensure clean printing.
Yes, our batch generation feature allows you to create multiple barcodes from CSV data.
Use at least 300 DPI for professional printing. Higher resolutions ensure better scanning reliability.
Code128 supports up to 48 characters, EAN-13 is fixed at 13 digits, UPC-A is fixed at 12 digits.
Yes, you can choose custom colors, but black-on-white provides the best scanning reliability.
Barcodes are 1D and faster to scan linearly, QR codes are 2D and hold more data but scan from any angle.
Use any smartphone camera or dedicated barcode scanner app to test scanning functionality.
Yes, you can toggle human-readable text display below the barcode for manual entry backup.
Download as PNG (web), SVG (scalable), PDF (print), or EPS (professional printing).
Yes, all processing happens locally in your browser. No data is sent to our servers.
Barcodes are permanent digital patterns. They work as long as the encoded data remains valid.
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