Code 39 Barcode Generator

Generate Code 39 barcodes for industrial and warehouse labels — digits, letters A–Z, and selected symbols.

For this tool, processing runs locally in your browser and data is not sent to the server.

Code 39 Barcode Generator is a free online tool for creating Code 39 barcodes used in industrial and warehouse labeling. It supports digits, uppercase letters A–Z, and symbols - . $ / + %. Single and bulk modes generate up to 30 codes with PNG, SVG, and PDF export. Processing runs locally in your browser — entered data is not sent to the UtiLab server.

What it does

Output

Processing

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GCode 128 Barcode Generator

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GEAN-13 Barcode Generator

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How to use

Choose single or bulk mode.
Enter the value — digits, A–Z, and symbols - . $ / + % are supported.
Review the barcode preview and validation.
Download PNG, SVG, or a print-ready PDF.
In bulk mode, enter up to 30 codes and export them together.

More about this tool

Code 39 Barcode Generator creates barcodes for industrial and warehouse labels. Code 39 supports digits, uppercase letters A–Z, and symbols - . $ / + %. It is one of the oldest and most widely supported barcode formats for inventory and asset tracking.

Use single mode for one barcode or bulk mode for up to 30 codes at once. Download PNG, SVG, or PDF for printing. Generation runs locally in your browser — entered data is not sent to the UtiLab server.

Code 39 format
Single and bulk generation
Print-ready PDF export
Up to 30 codes per batch
PNG and SVG download
Runs in the browser
No registration required

Frequently Asked Questions

What is Code 39?

Code 39 is a linear barcode format that encodes digits, uppercase letters A–Z, and a limited set of symbols. It is commonly used in industrial and warehouse labeling.

Which characters does Code 39 support?

Code 39 supports digits 0–9, uppercase letters A–Z, and symbols - . $ / + %. Lowercase letters are not supported.

How do I generate a Code 39 barcode?

Enter a supported value, review the preview, and download PNG, SVG, or PDF.

Can I generate multiple Code 39 barcodes at once?

Yes. Bulk mode supports up to 30 values with combined PNG, SVG, or PDF export.

Which download formats are supported?

You can download barcodes as PNG, SVG, or PDF. PDF is useful for printing label sheets.

When should I use Code 39 instead of Code 128?

Code 39 is simpler and widely supported in legacy systems. Code 128 is more compact and supports the full ASCII set. Choose based on your scanner and system requirements.

Is my data sent to the server?

No. Barcode generation runs locally in your browser. Entered data is not sent to the UtiLab server.

Do I need to register?

No. The tool works without registration.

More about this tool

Code 39 format
Single and bulk generation
Print-ready PDF export
Up to 30 codes per batch
PNG and SVG download
Runs in the browser
No registration required

Frequently Asked Questions

What is Code 39?

Code 39 is a linear barcode format that encodes digits, uppercase letters A–Z, and a limited set of symbols. It is commonly used in industrial and warehouse labeling.

Which characters does Code 39 support?

Code 39 supports digits 0–9, uppercase letters A–Z, and symbols - . $ / + %. Lowercase letters are not supported.

How do I generate a Code 39 barcode?

Enter a supported value, review the preview, and download PNG, SVG, or PDF.

Can I generate multiple Code 39 barcodes at once?

Yes. Bulk mode supports up to 30 values with combined PNG, SVG, or PDF export.

Which download formats are supported?

You can download barcodes as PNG, SVG, or PDF. PDF is useful for printing label sheets.

When should I use Code 39 instead of Code 128?

Code 39 is simpler and widely supported in legacy systems. Code 128 is more compact and supports the full ASCII set. Choose based on your scanner and system requirements.

Is my data sent to the server?

No. Barcode generation runs locally in your browser. Entered data is not sent to the UtiLab server.

Do I need to register?

No. The tool works without registration.