Barcode Generator
lockClient-side OnlyGenerate industrial-grade barcodes instantly. All processing happens in your browser—your data never leaves your device.
Input & Format
check_circleAny text or numbers (full ASCII).
Customization
Show Text Label
10
Live Previewcheck_circleScannable
Barcode Formats Guide
inventory_2Code 128
The most versatile linear barcode. Supports all 128 characters of ASCII. Ideal for shipping labels, logistics, and internal tracking.
shopping_cartEAN-13 / UPC / EAN-8
Retail standards used worldwide. EAN-13 is the European standard (13 digits), UPC-A is used primarily in North America (12 digits), and EAN-8 fits small packaging.
precision_manufacturingCode 39 & Codabar
Common in inventory, industry, libraries and healthcare. Self-checking, alphanumeric (Code 39) or numeric with start/stop letters (Codabar).
securityITF-14
The Interleaved 2 of 5 bar code used to mark cartons, cases, or pallets that contain products with a UPC or EAN identification number.
Frequently Asked Questions
Is my data safe?expand_more
Yes. ToolXero operates on a "Zero-Server" philosophy. All barcode generation logic is written in JavaScript and runs entirely within your web browser. No data is transmitted to any server.
Which format should I use?expand_more
If you are selling in retail, use EAN-13 or UPC. For internal asset tracking or general data encoding, Code 128 is usually the best choice due to its high data density and wide support.
What is the check digit, and do I need to calculate it?expand_more
Retail formats (EAN-13, UPC, EAN-8, ITF-14) end with a check digit that scanners use to detect misreads. You don't need to compute it: enter one digit less (e.g. 12 digits for EAN-13) and it is calculated and appended automatically. If you enter the full length, the check digit is verified instead.