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Barcode Generator

Generate professional barcodes in multiple formats (CODE128, CODE39, EAN-13, UPC, ITF-14, MSI, Pharmacode) with customizable appearance. Download as SVG or PNG for free.

Free to useNo sign-up requiredUpdated Jan 2026
Barcode GeneratorTry it now — free ▼
Select Barcode Format
Quick Examples:
Customize Appearance
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Live Preview
||| Your barcode will appear here

Embed Barcode Generator Widget

About Barcode Generator

Welcome to the Barcode Generator, a powerful online tool that lets you create professional barcodes in multiple formats directly in your browser. Whether you need barcodes for inventory management, product labeling, shipping, or asset tracking, this generator supports all major barcode symbologies with customizable appearance options.

Supported Barcode Formats

||| CODE128
High-density barcode supporting all 128 ASCII characters. Ideal for logistics, shipping labels, and general-purpose encoding. Produces compact barcodes with excellent scanner readability.
Recommended for General Use
||| CODE39
Traditional barcode format supporting uppercase letters, digits, and special characters. Widely used in automotive, defense, and healthcare industries. Self-checking without requiring a check digit.
Industrial Standard
||| EAN-13
International retail barcode standard using 13 digits (12 data + 1 check). Found on consumer products worldwide. Includes country code, manufacturer code, and product code.
Retail Products
||| UPC-A
Universal Product Code used primarily in North America. Contains 12 digits encoding manufacturer and product information. Required for retail products sold in US and Canada.
North American Retail
||| ITF-14
Interleaved 2 of 5 barcode for shipping containers and outer packaging. Encodes 14 digits including GTIN (Global Trade Item Number). Uses bearer bars for improved scanning.
Shipping & Logistics
||| Pharmacode
Specialized barcode for pharmaceutical packaging. Encodes numbers from 3 to 131070. Designed for high-speed automated packaging with excellent error detection.
Pharmaceutical

Barcode Format Comparison

Format Characters Data Type Best For
CODE128 128 ASCII Alphanumeric General purpose, logistics
CODE39 A-Z, 0-9, symbols Alphanumeric Industrial, government
EAN-13 13 digits Numeric International retail
UPC-A 12 digits Numeric North American retail
ITF-14 14 digits Numeric Shipping containers
MSI 0-9 Numeric Inventory, warehousing
Pharmacode 3-131070 Numeric Pharmaceutical packaging

How to Use This Barcode Generator

  1. Select a barcode format: Choose the appropriate format for your use case. CODE128 is recommended for general purposes.
  2. Enter your data: Type the content you want to encode. The generator will validate your input based on the selected format.
  3. Customize appearance: Adjust bar width, height, colors, and text display options to match your design requirements.
  4. Generate and preview: Click the Generate button to create your barcode with instant live preview.
  5. Download: Save your barcode as SVG (scalable vector) or PNG (raster image) format.

Tips for Scannable Barcodes

Pro Tip: For best scanning reliability, use black bars on a white background, maintain adequate quiet zones (white space) around the barcode, and ensure the barcode is printed at a resolution of at least 300 DPI.

Frequently Asked Questions

What is a barcode and how does it work?

A barcode is a visual representation of data using parallel lines (bars) and spaces of varying widths. Barcode scanners read these patterns by measuring reflected light to decode the encoded information. Different barcode formats use different encoding schemes optimized for specific applications, such as retail (EAN/UPC), logistics (CODE128), or healthcare (pharmacode).

What is the difference between CODE128 and CODE39?

CODE128 is a high-density barcode that can encode all 128 ASCII characters, making it very compact and versatile. CODE39 is an older format that encodes uppercase letters, numbers, and some special characters, producing wider barcodes but being simpler to implement. CODE128 is generally preferred for modern applications due to its efficiency.

What is the difference between EAN-13 and UPC?

EAN-13 and UPC are both retail barcode standards. UPC (Universal Product Code) uses 12 digits and is primarily used in North America. EAN-13 (European Article Number) uses 13 digits and is the international standard. UPC-A codes can be represented as EAN-13 by adding a leading zero. Both formats include a check digit for error detection.

What is the best barcode format for general use?

CODE128 is typically the best choice for general-purpose barcode applications. It can encode any ASCII character, produces compact barcodes, and is widely supported by barcode scanners. For retail products, EAN-13 or UPC is required. For pharmaceutical applications, pharmacode is often mandated.

Can I use colored barcodes?

While you can create colored barcodes, the standard and most reliable configuration is black bars on a white background. This provides maximum contrast for scanner readability. If you use colors, ensure high contrast between the bars and background, and avoid red bars or backgrounds as many scanners use red laser light.

Additional Resources

Reference this content, page, or tool as:

"Barcode Generator" at https://MiniWebtool.com/barcode-generator/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Jan 28, 2026

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