Free Online Barcode Generator

💡 Help: Supports letters, numbers, and special characters. Max 80 characters.
Example: ABC123

Customization Options

2
100px
20px
10px
Your barcode will appear here
Enter data and click Generate

Free Online Barcode Generator

Create scannable barcodes for products, inventory, shipping labels, and asset tracking in seconds. This tool produces industry-standard barcodes compatible with any scanner or POS system. Pick your format, type in your data, adjust colors and dimensions, then export as PNG, JPG, or SVG. The entire process happens client-side — your information never touches a remote server.

Supports Code-128, Code-39, Code-93, Code-11, EAN-13, EAN-8, UPC-A, MSI, and Pharmacode. No account needed. No watermarks. No usage limits.

How to Generate a Barcode

1

Pick a Format

Choose from 9 barcode types based on your use case. Code-128 works for most situations.

2

Enter Your Data

Type numbers, text, or product codes. The tool validates input and shows format requirements.

3

Customize

Adjust bar width, height, colors, margins, and font size. Preview changes instantly.

4

Download

Save as PNG, JPG, or SVG. Print directly, copy to clipboard, or share via WhatsApp.

Supported Barcode Formats

Each barcode format serves a specific purpose. The table below outlines what each type accepts, where it is commonly used, and its character capacity.

FormatData TypeLengthCommon Use
Code-128Letters, numbers, symbolsUp to 80 charsShipping, logistics, general purpose
Code-39Uppercase A-Z, 0-9, symbolsVariableMilitary, automotive, ID badges
Code-93Uppercase A-Z, 0-9, symbolsVariablePostal services, compact labeling
Code-11Numbers 0-9, hyphenVariableTelecom equipment labeling
EAN-13Numbers onlyExactly 13 digitsGlobal retail product identification
EAN-8Numbers onlyExactly 8 digitsCompact labels on small-sized goods
UPC-ANumbers onlyExactly 12 digitsUS and Canada retail products
MSINumbers onlyVariableLibraries, warehouse shelves
PharmacodeNumbers 3-1310701-6 digitsPharmaceutical packaging

Tool Features

Multiple Download Formats

Download your barcode as a PNG image for digital use, JPG for smaller file sizes, or SVG for vector graphics that scale to any size without losing quality. SVG files are ideal for professional printing at any resolution.

Full Customization Control

Adjust bar width and height to match label dimensions. Change background and line colors for branding needs. Modify font size and margins. Toggle the human-readable text display beneath the barcode on or off.

Instant Validation

Real-time input validation ensures your data matches the selected format requirements before generation. The tool shows exactly what characters and lengths each format accepts, preventing errors before they happen.

Auto Checksum Calculation

For EAN-13, EAN-8, and UPC-A formats, the tool automatically calculates the check digit. Enter 12 digits for EAN-13, 7 for EAN-8, or 11 for UPC-A, and the correct checksum digit is appended automatically.

Print and Share

Print barcodes directly from the browser with proper formatting. Copy to clipboard for pasting into documents. Share via WhatsApp or your device native share options for quick distribution to team members.

Complete Privacy

All barcode generation runs locally in your browser using JavaScript. Your data is never transmitted to any server. Nothing is logged, stored, or tracked. Suitable for encoding confidential product codes and internal identifiers.

Who Uses This Tool?

🏪

Retail Stores

Generate EAN-13 or UPC-A barcodes for product pricing and checkout scanning at point-of-sale terminals.

📦

Warehouses and Logistics

Create Code-128 barcodes for shipping labels, pallet tracking, and inventory bin locations.

📚

Libraries and Archives

Use MSI or Code-39 barcodes for book cataloging, member cards, and shelf organization systems.

💊

Pharmaceutical Companies

Generate Pharmacode barcodes for medication packaging lines and automated sorting systems.

🏭

Manufacturers

Produce Code-128 or Code-39 barcodes for parts tracking, work orders, and quality control checkpoints.

🏢

Office Asset Management

Label equipment, furniture, and IT assets with Code-128 barcodes for internal tracking and auditing.

Choosing the Right Barcode Format

The barcode format you select depends on what data you need to encode and where the barcode will be scanned. Use this breakdown to pick the right option for your situation:

Selling products in stores?

Use EAN-13 for international markets or UPC-A for US and Canadian retail. Point-of-sale scanners in stores globally recognize these symbologies. Commercial sellers need a GS1 prefix to assign valid product numbers.

Tracking inventory or shipping?

Use Code-128. It handles letters and numbers, supports the widest character set, and produces compact barcodes. Most logistics systems expect Code-128 format on shipping labels and warehouse bins.

Internal identification or ID badges?

Use Code-39. It is self-checking (no checksum required), widely supported by legacy systems, and accepted in government and military applications. Works with uppercase letters and numbers.

Small product packaging?

Use EAN-8. Created for products whose packaging is physically too small to fit a full 13-digit barcode. Frequently seen on candy bars, lip balms, and single-serve beverage cans.

Pharmaceutical packaging?

Use Pharmacode. Specifically designed for pharmaceutical production lines. Encodes numbers between 3 and 131070 and is read by specialized packaging verification equipment.

Barcode Printing Tips

A barcode is only useful if it scans reliably. Follow these guidelines when printing barcodes from this tool:

  • Use SVG for print: SVG files are vector-based and maintain perfect sharpness at any print size. PNG works for standard resolutions, but SVG eliminates pixelation concerns entirely.
  • Maintain contrast: Keep dark bars on a light background. Black on white provides the highest scan reliability. Avoid using colors that reduce contrast between bars and background.
  • Include quiet zones: Leave blank space on both sides of the barcode. The margin setting in the tool controls this. Scanners need this empty space to detect where the barcode starts and ends.
  • Test before mass printing: Generate one copy first and verify it scans correctly with your scanner or a smartphone barcode app. Then proceed with volume printing.
  • Minimum size matters: Code-128 barcodes should be at least 1 inch (25mm) wide. EAN-13 has an official minimum dimension of 29.83mm x 20.73mm. Printing below these thresholds leads to scanning failures, especially with lower-quality readers.

For comprehensive printing guidance, read our barcode printing guide.

Frequently Asked Questions

Is this barcode generator completely free to use?
Absolutely. There are no charges, no caps on how many barcodes you can make, and no premium version locked behind a paywall. Every format is available at no cost. You can export as PNG, JPG, or SVG and use the result commercially or personally. Advertising on the page covers our operating costs so the tool remains free for everyone.
What barcode formats does this tool support?
Nine formats are available: Code-128 handles the full ASCII character set and is the go-to for general use. Code-39 covers uppercase letters and digits for defense and automotive contexts. Code-93 packs the same characters into a smaller footprint. Code-11 encodes digits and hyphens for telecom hardware. EAN-13 is the 13-digit standard used on retail shelves globally. EAN-8 is its shorter sibling for tiny packages. UPC-A is the 12-digit code found on products in North America. MSI works with numeric data for library and shelf systems. Pharmacode handles values from 3 to 131070 for drug manufacturing.
Do I need to sign up or create an account?
No. Open the webpage, choose a format, type your data, and just Generate. The barcode appears instantly and you can download it right away. We do not ask for an email address, password, or any personal details at any point in the process.
Is my data safe when using this barcode generator?
Your data stays entirely on your machine.We have no database, no analytics on user input, and no way to see what you type. This makes it appropriate for proprietary SKUs, internal part numbers, and other sensitive identifiers.
Which barcode format should I choose for my product?
It depends on your market and application. Selling goods outside North America? Go with EAN-13. Selling in the US or Canada specifically? UPC-A is the standard for those regions. Need to label internal assets, bins, or shipments? Code-128 gives you the most flexibility since it accepts any combination of letters, digits, and punctuation. Packaging medications? Pharmacode is purpose-built for pharma production lines. Government or defense contexts? Code-39 is the established norm.
Can I customize the barcode appearance?
Fully customizable. Drag the sliders to control bar thickness, overall height, text size below the bars, and whitespace margins. Use the color pickers to set any combination for the bars and background — helpful when matching brand guidelines. You can also hide the human-readable number beneath the bars if your design requires it. Every adjustment refreshes the preview live.
Will the generated barcodes scan correctly?
They will. The encoding engine implements the official specification for each symbology — ISO/IEC 15417 governs Code-128, and GS1 rules apply to EAN and UPC variants. The output is mathematically identical to what dedicated barcode printers produce. Any compliant hardware scanner, POS terminal, or mobile scanning application will decode the bars correctly. Still, we advise scanning a test print before committing to a large batch run.
What is the difference between PNG, JPG, and SVG downloads?
PNG is a lossless raster format — sharp and pixel-perfect at its native resolution, great for embedding in documents or displaying on screens. JPG compresses the image to reduce file weight, handy for emailing or uploading where a smaller payload matters, though slight compression artifacts appear. SVG stores the barcode as mathematical paths rather than pixels, so you can scale it to billboard size or shrink it to a postage stamp without any loss of sharpness. For anything that will be physically printed, SVG is the strongest choice.

Related Resources

Need QR codes instead? Try our free QR code generator for URLs, WiFi, contacts, and more.

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