What barcode formats are supported?

CODE128 (general purpose), EAN-13 (retail products), UPC-A (US retail), CODE39 (alphanumeric), ITF-14 (shipping), and more.

CODE128 is a high-density barcode supporting all 128 ASCII characters. It is the most versatile format for general use.

EAN-13 is the European Article Number format used worldwide for retail products. It encodes 13 digits including a check digit.

UPC-A (Universal Product Code) is the standard barcode for retail products in the US and Canada. It encodes 12 digits.

How do I choose the right format?

Use CODE128 for general text/numbers, EAN-13/UPC for retail products, CODE39 for industrial applications, ITF-14 for shipping containers.

What is a check digit?

A check digit is calculated from other digits to verify the barcode was scanned correctly. Some formats require it, others calculate it automatically.

Why is my barcode not generating?

Each format has specific requirements. EAN-13 needs exactly 12-13 digits, UPC needs 11-12 digits. CODE128 accepts most characters.

What size should my barcode be?

Minimum height is typically 15mm. Width depends on the data length. Ensure adequate quiet zones (white space) on sides.

Can I customize barcode colors?

Yes, but maintain high contrast. Dark bars on light background works best. Avoid red as some scanners use red lasers.

Is my data stored anywhere?

No! Barcodes are generated entirely in your browser. Your data never leaves your device.

What barcode formats are supported?

CODE128 (general purpose), EAN-13 (retail products), UPC-A (US retail), CODE39 (alphanumeric), ITF-14 (shipping), and more.

CODE128 is a high-density barcode supporting all 128 ASCII characters. It is the most versatile format for general use.

EAN-13 is the European Article Number format used worldwide for retail products. It encodes 13 digits including a check digit.

UPC-A (Universal Product Code) is the standard barcode for retail products in the US and Canada. It encodes 12 digits.

How do I choose the right format?

Use CODE128 for general text/numbers, EAN-13/UPC for retail products, CODE39 for industrial applications, ITF-14 for shipping containers.

What is a check digit?

A check digit is calculated from other digits to verify the barcode was scanned correctly. Some formats require it, others calculate it automatically.

Why is my barcode not generating?

Each format has specific requirements. EAN-13 needs exactly 12-13 digits, UPC needs 11-12 digits. CODE128 accepts most characters.

What size should my barcode be?

Minimum height is typically 15mm. Width depends on the data length. Ensure adequate quiet zones (white space) on sides.

Can I customize barcode colors?

Yes, but maintain high contrast. Dark bars on light background works best. Avoid red as some scanners use red lasers.

Is my data stored anywhere?

No! Barcodes are generated entirely in your browser. Your data never leaves your device.

Barcode Generator

simple

Generate barcodes in CODE128, CODE39, EAN-13, EAN-8, UPC-A, UPC-E, ITF-14, and more formats. Create product barcodes, inventory labels, shipping codes instantly.

Generatorsbarcodegeneratorcode128ean

100% Private - Runs Locally

How to Use

1Enter data to encode
2Select barcode format
3Customize appearance
4Download SVG

Examples

Product Barcode (EAN-13)

Input

5901234123457

Output

Standard retail product barcode

Inventory Code (CODE128)

Input

INV-2024-001234

Output

Alphanumeric inventory tracking code

Shipping Container (ITF-14)

Input

15400141288763

Output

Shipping container identification

Frequently Asked Questions

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