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Barcode Generator

Generate barcodes in multiple formats with customizable options

Select Barcode Format

Barcode Data

Invalid format for this barcode type Barcode generation failed

Customization

Barcode Preview
A barcode generator creates machine-readable patterns of bars and spaces that encode data. Barcodes are widely used in retail, inventory management, shipping, and tracking systems. They enable fast, accurate data entry by scanning instead of manual typing. Our free barcode generator supports multiple formats including Code 128, EAN-13, Code 39, UPC-A, and works entirely in your browser for maximum privacy.
  1. 1
    Access the Tool

    Open the barcode generator tool in your web browser. No registration or installation required.

  2. 2
    Choose Barcode Format

    Select the barcode format that matches your needs: Code 128, EAN-13, Code 39, UPC-A, or QR Code. Each format has different capabilities.

  3. 3
    Enter Your Data

    Enter the data you want to encode. This can be a product number, serial number, text, URL, or other alphanumeric data depending on the format.

  4. 4
    Customize Appearance

    Customize the barcode appearance by adjusting size, colors, and background. Ensure good contrast for reliable scanning.

  5. 5
    Generate Barcode

    Click the generate button to create your barcode instantly. The barcode will appear in the preview area.

  6. 6
    Test the Barcode

    Test the barcode with a scanner or smartphone app to ensure it reads correctly before using it in production.

  7. 7
    Download

    Download your barcode in PNG, SVG, or PDF format. PNG is best for digital use, SVG for scalable graphics, and PDF for printing.

  8. 8
    Use Your Barcode

    Use your barcode on products, labels, documents, or anywhere you need automated data entry or tracking.

What data can I encode in a barcode?

Barcodes can encode product numbers, serial numbers, URLs, text, and other alphanumeric data. Different barcode formats support different types and lengths of data.

What barcode formats are available?

Common formats include Code 128 (alphanumeric), EAN-13 (product codes), QR Code (2D, various data), Code 39 (alphanumeric), and UPC-A (product codes). Choose based on your data type and requirements.

Is my data secure?

Yes, all barcode generation happens entirely in your browser. Your data never leaves your device or is sent to any server, ensuring complete privacy.

Can I customize the appearance?

Yes, you can customize barcode colors, background colors, and size. However, be careful not to modify the bars themselves too much, as this can affect scanability.

How do barcode scanners work?

Barcode scanners use light sensors to read the pattern of bars and spaces. The scanner decodes the pattern according to the barcode format's specification to retrieve the encoded data.

Can I print barcodes?

Yes, you can print barcodes on labels, packaging, documents, or any surface. Ensure adequate contrast (usually black bars on white background) and sufficient size for your scanner to read.

How much data can a barcode store?

The maximum data length depends on the barcode format. Code 128 can encode up to 80 characters, while simpler formats like EAN-13 encode fixed-length numbers (13 digits).

Can I use barcodes for inventory?

Yes, you can generate barcodes for inventory management, product tracking, asset management, document identification, or any application that requires automated data entry.

Do barcodes expire?

Barcodes themselves don't expire. However, if a barcode encodes a URL or other dynamic data, that data may change or become unavailable over time.

What file formats can I download?

Yes, you can download barcodes as PNG (raster image), SVG (vector image), or PDF (for printing). PNG is best for digital use, SVG for scalable graphics, and PDF for professional printing.

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