BarDataFree QR & barcode generator
Your data stays in this browser
For mixed letters/numbers, use CODE128. EAN-13, UPC, and ITF-14 require specific digit lengths.
Customize
Color, size, spacing, and sheet options
Free online QR code and barcode generator
Create single codes or bulk printable sheets directly in your browser. Customize size, margin, foreground, and background, then download PNG, SVG, or print-ready PDF files without an account.
How to generate codes
Choose QR, Single, or Bulk. Enter one value for a single code, or put one value on each line for a bulk sheet. The live preview updates as you type, and exports use the same values and settings shown on screen.
Supported barcode formats
Use Code 128 for general text, SKUs, inventory, and shipping labels. BarData also supports EAN-13, UPC-A, Code 39, ITF-14, and MSI for retail, warehouse, and packaging workflows.
Private by design
Code generation happens locally in your browser. The values you enter are not uploaded to a BarData server. The project is available on GitHub.