Barcode Generator
Generate professional barcodes online for free. Supports Code128, EAN, UPC, Code39, and more formats.
Letters and numbers allowed
About Barcode Generator
Create professional barcodes in multiple formats with our free online barcode generator. Whether you need barcodes for retail products (EAN, UPC), inventory management (Code128, Code39), shipping labels (ITF-14), or pharmacy use (Pharmacode), this tool has you covered. Customize barcode dimensions, choose from multiple output formats, and download high-quality barcodes instantly. All processing happens in your browser for maximum privacy.
What Is Barcode Generator and Why Use It?
Automation and generation tools save hours of manual work by creating structured outputs instantly. From QR codes to UUIDs, these utilities power modern digital workflows. Barcodes are the invisible infrastructure that powers modern commerce, logistics, and inventory management. From the cereal box in your pantry to the package on your doorstep, barcodes enable machines to identify products instantly and accurately. Our Barcode Generator supports over ten international standards including Code128 (versatile alphanumeric), EAN-13 (retail products worldwide), UPC (North American retail), Code39 (industrial and defense), and ITF-14 (shipping containers). Each format follows strict international specifications ensuring compatibility with scanners from any manufacturer. Small business owners generate product codes for e-commerce listings. Warehouse managers create inventory tracking labels. Event organizers print scannable tickets. Pharmaceutical companies generate compliant medication labels. The customizable dimensions ensure codes print clearly on labels of any size, while the PNG and SVG export options accommodate both digital use and high-resolution printing on packaging materials. This tool creates outputs instantly without requiring design skills, technical knowledge, or expensive software. Everything processes locally in your browser, ensuring the generated codes and identifiers remain private. Marketing teams create trackable QR codes for campaigns. Developers generate unique identifiers for database records. Event organizers print scannable tickets for contactless check-in. Businesses add chat links to websites for instant customer support.
Common Use Cases
Retail Products
Generate EAN and UPC barcodes for products sold in stores and online marketplaces.
Inventory Management
Create Code128 barcodes for tracking warehouse inventory and assets.
Event Tickets
Generate unique barcodes for event admission and ticket validation systems.
Library Systems
Create Codabar barcodes for books and media in school or public libraries.
How to Use Barcode Generator
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Select the barcode format: Code128, EAN-13, UPC, Code39, or others.
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Enter the data you want to encode in the text field.
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Adjust the width, height, and whether to display the text below the barcode.
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Preview the generated barcode in real-time.
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Download as PNG for digital use or SVG for high-quality printing.
Why Use Our Barcode Generator؟
Multiple barcode formats (Code128, EAN, UPC, Code39)
Customizable width and height
Show/hide barcode text
Download as PNG or SVG
Real-time preview
100% client-side generation
Tips for Best Results
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For retail products, you may need to register with GS1 to get officially recognized EAN/UPC numbers.
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Code128 supports letters, numbers, and symbols — it is the most versatile format.
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Always test printed barcodes with your scanner before mass production.
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Use SVG format for printing on packaging to ensure crisp edges at any size.
Frequently asked questions
Common Mistakes to Avoid
- 1
Broken Links in QR Codes
Always test URLs before generating QR codes. A broken link makes the QR code permanently useless and wastes printed materials.
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Not Including Country Codes
WhatsApp links require proper country codes. Missing or incorrect codes result in failed connections.
- 3
Using Predictable Random Seeds
For cryptographic purposes, always use cryptographically secure random generators. Never use simple math.random for security.
Did You Know?
QR codes can store up to 7,089 numeric characters or 4,296 alphanumeric characters.
UUID version 4 provides approximately 5.3 x 10^36 possible unique identifiers.
The first QR code was created in 1994 by Denso Wave for tracking automotive parts.
Best Practices
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Test all generated QR codes with multiple scanner apps before mass printing.
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Include proper country codes in WhatsApp links for international audiences.
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Use cryptographically secure random generators for security-sensitive applications.
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Download generated codes in high resolution for professional printing.