All tools Barcode Generator ● Live Developer Tools

How Barcode Generator works

  1. Type or paste the text you want to encode (product ID, label, order number, etc.).
  2. The Code 128 barcode renders automatically as you type.
  3. Download the barcode image or print it directly from the browser.
  4. Adjust your text and regenerate as needed — there's no save or upload step.
  • Create temporary labels for inventory or storage bins.
  • Generate test barcodes for scanner or POS system development.
  • Print reference barcodes for internal asset tracking.
  • Add a scannable code to a printed document or shipping label.
  • Quickly prototype a barcode layout before using a dedicated label printer system.

Barcode generation happens entirely in your browser. Your input text is never uploaded or stored.

  • Generates Code 128 only — not UPC-A, EAN-13, QR codes, or other barcode standards.
  • Very long input strings produce wide barcodes that may be difficult to scan.
  • No built-in checksum validation for retail product code standards.

Barcode Generator

Barcode Generator creates scannable Code 128 barcodes from product IDs, order numbers, labels, and short text values. Use it for quick internal labels, test data, or printable references without uploading anything.

Barcode Generator Runs locally

Settings

Guide

How to use

  1. Type or paste the text you want to encode (product ID, label, order number, etc.).

  2. The Code 128 barcode renders automatically as you type.

  3. Download the barcode image or print it directly from the browser.

  4. Adjust your text and regenerate as needed — there's no save or upload step.

Scenarios

Use cases

  • Create temporary labels for inventory or storage bins.

  • Generate test barcodes for scanner or POS system development.

  • Print reference barcodes for internal asset tracking.

  • Add a scannable code to a printed document or shipping label.

  • Quickly prototype a barcode layout before using a dedicated label printer system.

Good to know

Limitations & Privacy

Private by design

Barcode generation happens entirely in your browser. Your input text is never uploaded or stored.

  • Generates Code 128 only — not UPC-A, EAN-13, QR codes, or other barcode standards.

  • Very long input strings produce wide barcodes that may be difficult to scan.

  • No built-in checksum validation for retail product code standards.

FAQ

Frequently asked questions

Is Barcode Generator free to use?

Yes. The tool is free and runs directly in your browser with no account required.

Does this tool upload my data?

No. Processing happens locally in the browser tab. Your input is never sent to a server.

What barcode format does this generate?

Code 128, a widely supported high-density 1D barcode format that can encode letters, numbers, and most ASCII symbols. It's commonly used for shipping labels, product IDs, and inventory tracking.

What characters can I encode?

Code 128 supports the full ASCII character set, including letters, digits, spaces, and common punctuation. Very long strings produce wider barcodes that may be harder to scan reliably.

Can I print the generated barcode?

Yes. The barcode renders as an image you can download or print directly. For best scan reliability, print at a reasonable size (avoid shrinking too small).

Will this barcode scan correctly with any scanner?

Code 128 is supported by virtually all modern barcode scanners and scanning apps. Scan reliability depends on print quality, size, and contrast.

Can I generate barcodes for product UPC/EAN codes?

This tool generates Code 128 barcodes from any text input. For retail products requiring UPC-A or EAN-13 specifically, you'll need a tool dedicated to those formats with checksum validation.