69ea.com
EN English ZH 简体中文 JA 日本語

Home › Generator Tools › Barcode Generator

📦 Barcode Generator

Generate barcodes in CODE128, EAN13, UPC, and CODE39 formats. Download as PNG or SVG.

About the Barcode Generator

This barcode generator runs entirely in your browser. Enter your text or numeric content, choose a barcode format, adjust the bar width and height, then click Generate to render the barcode on a canvas. You can download the result as a PNG image or an SVG vector. Nothing is uploaded — all rendering happens locally with JavaScript.

Supported barcode formats

  • CODE128 — A high-density linear barcode that can encode any ASCII character (letters, digits, symbols). The most versatile format, used widely in shipping, packaging, and logistics.
  • EAN13 — The 13-digit European Article Number used worldwide for retail products. Requires exactly 12 or 13 numeric digits and includes a check digit.
  • UPC — The 12-digit Universal Product Code used primarily in North America for retail scanning. Accepts 11 or 12 numeric digits.
  • CODE39 — An older linear format that encodes uppercase letters, digits, and a few symbols. Common in industrial, automotive, and defense applications.

How to use the generator

  1. Type your content into the Content field.
  2. Select the barcode Format that matches your use case.
  3. Adjust Bar width (1–5) and Height (20–300) if needed.
  4. Click Generate to render the barcode on the canvas.
  5. Click Download PNG or Download SVG to save the result.

Frequently asked questions

Why does my EAN13 or UPC barcode fail to generate? These formats require a specific number of numeric digits and a valid check digit. Make sure your input is all digits and has the correct length for the format.

What is the difference between PNG and SVG? PNG is a raster image best for web display and printing at a fixed size. SVG is a vector image that scales without quality loss, ideal for high-resolution printing.

Is my data uploaded anywhere? No. All barcode generation happens locally in your browser. Your content never leaves your device.

Can I use the generated barcodes commercially? Yes. The barcodes are generated from your own content and you are free to use them however you like.