CSV → BARCODES · TOOL 02

Bulk Barcode Generator from CSV
Convert product and asset data into printable barcodes.

Generate Code 128 or Code 39 barcodes from SKU, inventory, and asset spreadsheets—with validation before you print.

✓ Up to 500 labels✓ Browser-only processing✓ A4, Letter & 4×6 output
UP TO 500 ROWS

Your file and generated codes stay in this browser tab. Nothing is uploaded.

WORKFLOW INPUT

A CSV with one identifier column and an optional label column

EXPECTED RESULT

Validated Code 128 or Code 39 labels in PNG, ZIP, A4, or Letter format

High-resolution PNGs preserve quiet zones and bar proportions. PDF sheets use fixed cells so browsers never stretch the barcode image.

COMMON ERRORS
  • Lowercase or unsupported symbols when Code 39 is selected
  • Duplicate SKUs creating duplicate filenames
  • Printing with Fit to page instead of 100% scale
HOW IT WORKS

From source data to finished output

01

Add product data

Upload a CSV or paste rows with SKU, item, asset, or other identifier columns.

02

Pick a format

Use Code 128 for broad compatibility or Code 39 for uppercase letters, digits, and a limited symbol set.

03

Print or download

Export individual PNG files, a ZIP batch, or a printable page of barcode labels.

COMMON USES

Made for jobs that repeat.

Focused generation and print controls, without a visual designer or account system.

GOOD TO KNOW

Questions before you print

Should I use Code 128 or Code 39?+

Code 128 is compact and supports more characters. Code 39 is common in industrial systems but has a smaller character set.

Can this make UPC or EAN retail codes?+

No. Those identifiers require controlled allocation, strict lengths, and check digits; this tool focuses on internal Code 128 and Code 39 workflows.

Will the printed barcodes scan?+

Exports preserve a white quiet zone, dark bars, and fixed proportions. Printer quality and scaling still matter, so test one sheet before a large run.