Free Online Bulk Barcode Generator
Generate thousands of Code 128, UPC-A, EAN-13, QR Code, GS1 Digital Link, and DataMatrix barcodes in bulk. Export print-ready Avery sticker sheets, Zebra ZPL files, or thermal roll PDFs directly in your browser.
1. Format & Layout
2. Live Visual Preview
Row #1 SampleReal-time sample preview of your selected symbology & template.
Supports comma, tab, pipe, and European semicolon (;) CSV formats
Batch Preview (0 items)
| # | Raw Input | Corrected Code | Header (Title) | Subheader (Price/Variant) | Status |
|---|---|---|---|---|---|
| Upload a CSV, paste text, or generate sequence to view results. | |||||
About Bulk Barcode Generation
Our Free Online Bulk Barcode Generator is a 100% client-side browser utility for logistics, warehouse inventory, and retail operations. Upload your product CSV or Excel spreadsheet to generate high-density 1D and 2D barcodes (Code 128, UPC-A, EAN-13, QR Code, Code 39, DataMatrix, PDF417). Instantly print ready-to-use sticker sheets formatted for Avery templates or thermal roll label printers with zero server uploads.
Features
- 100% Private & Browser-Local — Runs entirely on your device with zero server uploads for maximum security
- 100+ Barcode Symbologies Supported — Code 128, UPC-A, EAN-13, QR Code, Code 39, ITF-14, DataMatrix, PDF417, Codabar
- Sheet-to-Print PDF Engine — Direct print layout grids for Avery 5160, 5163, L7160, and 4x6 / 2x1 thermal label rolls
- Smart Modulo-10 Checksum Validation — Automatically calculates missing check digits for UPC-A and EAN-13 codes
- Vector SVG & High-DPI PNG Exports — Export clean vector SVG graphics or download thousands of PNGs in a single ZIP file
- Custom Human-Readable Styling — Configure custom fonts, top/bottom label text, and header labels (e.g. Product Name)
Frequently Asked Questions
Is my product or inventory data safe?
Yes, 100% safe. This utility operates entirely inside your local web browser using JavaScript. Your inventory SKUs, internal serial numbers, and customer data never leave your machine.
Which barcode types (symbologies) are supported?
We support Code 128, UPC-A, EAN-13, EAN-8, QR Code, Code 39, ITF-14, Code 93, Codabar, GS1-128, DataMatrix, and PDF417.
How do the Avery and Thermal printer templates work?
When you select a layout template (such as Avery 5160 or Thermal Roll 4x6"), our engine calculates exact label margins and exports a print-ready vector PDF. You can print it directly from your browser without manual alignment.
What happens if a UPC-A or EAN-13 code is missing its check digit?
Our built-in validation engine automatically calculates the correct Modulo-10 check digit for 11-digit UPCs or 12-digit EANs.
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