About the Barcode Generator
This barcode generator supports the six most-used 1D barcode formats: Code 128 (general purpose), Code 39 (legacy industrial), EAN-13 and EAN-8 (retail product codes outside North America), UPC-A (retail product codes in North America), and ITF-14 (shipping cartons). Barcodes are rendered as crisp SVG using the JsBarcode library — you can download a vector SVG for print or rasterize to PNG at any resolution. Everything runs in your browser; the input value is never sent to a server.
Common use cases
- Internal asset tracking labels (Code 128)
- Inventory SKUs for small retail and warehouses
- Library and document tracking systems
- Event ticket scanning
- Self-published book back covers (EAN-13 ISBN)
- Shipping carton labels (ITF-14)
Why client-side?
Every byte you paste, type, or upload here is processed entirely inside your browser. Nothing is sent to a server, logged, or stored. That means it's safe to use this tool on production secrets, customer data, internal logs, and any input you would not paste into a hosted SaaS formatter.
Want more? Browse all tools or visit the ToolsVault blog for practical guides.
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Frequently Asked Questions
- What's the difference between a QR code and a barcode?
- A barcode is 1D (a line of stripes) and stores up to ~25 characters of mostly numeric data. A QR code is 2D (a square pattern) and stores thousands of characters including URLs, WiFi credentials, and contact info. Use barcodes for retail SKUs and ISBNs; use QR codes for everything else.
- Which barcode format should I use?
- Code 128 for most internal use cases (asset tags, ticket scanning, SKUs) — it supports any ASCII text. EAN-13 for retail products sold internationally. UPC-A for retail products sold in North America. ITF-14 for shipping cartons. Code 39 only if you need to support legacy industrial scanners.
- Are these barcodes scannable by retail scanners?
- Yes — they follow the standard format specifications. EAN-13 / UPC-A barcodes are scannable by retail POS systems if the digits are valid product codes registered with GS1. For internal use, any scanner that supports the chosen format will read them.
- Can I download the barcode as SVG?
- The barcode is rendered as SVG in the browser, so you can right-click → Save Image As to get a vector SVG, or use the Download PNG button to get a high-resolution raster image.