Skip to main content
Convert Right Now Logo
Convert Right Now
Back to All Tools

Barcode Generator

Generate professional barcodes instantly in Code 128, EAN-13, UPC-A, and GS1-128 formats. Export PNG, SVG, or print-ready PDF files. Supports bulk CSV/Excel uploads for up to 2,000 barcodes. 100% free and browser-based with no signup required.

Presets

Barcode Types

Barcode Data

Supports alphanumeric data (letters, numbers, and symbols)

Live Preview

Enter data to generate a barcode

Related Tools

QR GeneratorPassword GeneratorDate ConverterUnit Converter

Discover More

Tips, guides & FAQs

10+ Types100% PrivateInstant PreviewBulk Generation

What Is a Barcode Generator?

A barcode generator converts alphanumeric data – such as product codes, serial numbers, or inventory IDs – into a machine‑readable barcode image. Our free online tool supports over a dozen industry‑standard formats, including Code 128, EAN‑13, UPC‑A, Code 39, ITF‑14, and GS1‑128. Whether you need retail barcodes for packaging, warehouse labels for logistics, or shipping codes for carriers, you can generate high‑quality barcodes instantly in your browser.

Need 2D scannable codes? Generate them instantly with our QR code generator. Our barcode generator already lets you customize colors and export transparent backgrounds for packaging, labels, and mockups. If you need to adjust dimensions for specific label sizes or printing requirements, you can resize your barcode images easily using our image resizer.

10+ Types

Code 128, EAN‑13, UPC‑A, Code 39, GS1‑128 & more

High‑Res Export

PNG (up to 4x), SVG vector, and print‑ready PDF with custom label layouts

Bulk Generation

Upload CSV or Excel – generate up to 2,000 barcodes in one batch

Privacy First

100% browser‑based – your data never leaves your device

Generate Barcodes in 3 Simple Steps

Create professional barcodes for any use case – retail products, asset tracking, shipping labels, or event tickets. Your barcode updates in real‑time as you type.

1

Pick a Format

Choose from Code 128, EAN‑13, UPC‑A & more

2

Enter Your Data

Type numbers, letters, or GS1 IDs – we auto‑add missing check digits

3

Download & Use

Export as PNG (up to 4x), SVG vector, or a multi‑label PDF

Why Use Our Free Barcode Generator?

Unlike online tools that require file uploads, our barcode generator works entirely inside your browser. That means zero privacy risks, no file size limits, and offline capability after the initial load. You get professional results – ideal for e‑commerce sellers, warehouse managers, shipping clerks, and developers.

Real‑time Preview

Live updates as you type – no waiting or page reloads

Smart Validation

Auto‑detects barcode format and calculates missing check digits

Print‑ready PDF

Design custom label sheets with margins, grids, and static text

Bulk Processing

CSV/Excel import → ZIP of PNGs or one PDF with 2,000+ barcodes

Is This Barcode Generator Safe?

100% SECUREAll barcodes are generated locally in your browser. Your data is never sent to our servers.

Your barcode data never leaves your device
Instant generation, no waiting
No logs or data storage
Works offline after first load

Common Uses for Generated Barcodes

Barcodes play a key role in modern business operations — from retail product packaging and warehouse inventory tracking to shipping labels, event tickets, and asset management. With customizable colors, formats, and print-ready exports, you can generate barcodes tailored for both digital and physical use. For documentation workflows, you can organize multiple barcode sheets into a single file using our PDF merger, or convert barcode images into clean, print-ready documents with our JPG to PDF converter.

📦 Retail Product Labels🏭 Warehouse Bin Locations🚚 Shipping & Courier Labels🏥 Patient ID Wristbands🎟️ Event & Movie Tickets📚 Library Book Spine Labels💳 Membership & Loyalty Cards🔧 Equipment & Asset Tags📦 E-commerce Fulfillment

💡Tips for Perfect Barcode Output

  • ✓Choose the right symbology: Code 128 for general use, EAN‑13 for retail, GS1‑128 for supply chain
  • ✓Let auto‑checkdigit correct your data – it prevents costly scanning errors
  • ✓Select 2x or 4x resolution when downloading PNGs for crisp printing on thermal or laser printers
  • ✓Test barcodes with a scanner before mass production to avoid readability issues
  • ✓Use the PDF label layout to match Avery templates and your printer’s exact margins
  • ✓Save your custom settings (size, colors, margins) as a template for repeatable designs

After generating your barcodes, you can further refine them for different use cases. Convert barcode images into formats like PNG, JPG, or WebP using our image converter, or reduce file sizes for faster loading and easier sharing with our image compressor — ideal for web use, email attachments, or large-scale distribution.

Frequently Asked Questions

We support Code 128, EAN‑13, UPC‑A, Code 39, ITF‑14, GS1‑128, Interleaved 2 of 5 (I2OF5), EAN‑8, UPC‑E, and Codabar.
Your data never leaves your browser. All barcode generation is done locally in your device. We do not upload, store, or log any of your inputs – not even temporarily.
Absolutely. Upload a CSV or Excel file with a column named 'value'. We’ll auto‑detect the best format for each row and generate up to 2,000 barcodes. You can download them as a ZIP of PNGs or as a single PDF with customizable label layouts.
Go to the 'Label Layout & Print Settings' section. Choose your paper size (A4, Letter, 4×6), set the number of columns/rows, adjust margins and spaces, then click 'Generate PDF'. The PDF will be perfectly aligned for your label sheets.
Yes. If you enter 12 digits for EAN‑13 (instead of 13), or 11 digits for UPC‑A, or 13 digits for ITF‑14, our tool calculates and appends the correct check digit automatically. We also validate if you provide the full 13 or 14 digits.
For standard printers, 2x resolution (2 times the normal pixel width) is usually enough. For thermal printers or high‑density labels, use 4x resolution. For SVG exports, resolution does not matter – vector graphics are infinitely scalable.