Barcode Generator

Free Online Barcode Generator - Code 128, EAN-13 & Code 39

Generate clean, high-resolution 1D barcodes for retail merchandise, inventory tracking, warehouse logistics, and document indexing. Our browser-based Barcode Generator creates print-ready barcode labels instantly in standard global barcode symbologies without requiring specialized barcode software.

Supported Barcode Formats:

• Code 128: High-density, versatile alphanumeric barcode format used universally for packaging, shipping, inventory labels, and product serial numbers.
• EAN-13: Standard 13-digit retail barcode format required for point-of-sale (POS) scanning on consumer goods and retail products worldwide.
• Code 39: Widely adopted legacy barcode standard supporting uppercase letters, numbers, and select punctuation marks, common in automotive, defense, and industrial components.

Common Applications:

• Retail & Supermarkets: Create custom shelf tags, price labels, and SKU barcodes for in-store billing scanners.
• E-Sevai & Service Maiyams: Generate tracking barcodes for customer application tokens, inward file slips, and service receipts.
• Warehousing & Asset Management: Standardize stock keeping units (SKU), pallet labels, and office asset tags for fast handheld laser scanning.

How to Generate a Barcode:

1. Type or paste your SKU code, product number, or serial data into the Enter text / URL / data input field.
2. Select your preferred symbology from the Barcode type dropdown (Code 128, EAN-13, or Code 39).
3. Click Generate to render the vector barcode instantly.
4. Download the crisp image output ready for label printers or document embedding.

Frequently Asked Questions (FAQ)

Can I scan these barcodes using standard handheld laser scanners and smartphone apps?
Yes. All generated barcodes strictly conform to ISO standards, ensuring fast and accurate decoding across standard laser POS scanners, CCD scanners, and mobile camera apps.

What is the requirement for EAN-13 barcodes?
EAN-13 barcodes require exactly 12 or 13 numeric digits (including the checksum digit). Entering letters or incorrect character lengths will prevent proper EAN rendering.

Are the generated barcode images suitable for thermal label printing?
Yes. The generated barcodes provide sharp, high-contrast black bars on pure white backgrounds, ensuring crisp results on direct thermal and thermal transfer label printers.