UPC Barcode Generator

Generate, validate, convert and download UPC-A / UPC-E barcodes.

SVG + transparent PNG
Enter 11 digits to calculate the check digit, or 12 digits to validate one.
px

px
Exports use transparent backgrounds. Increasing module width is the safest way to make the barcode itself larger.

Barcode preview

Generate a barcode to see the preview.
PNG downloads retain a transparent background. The preview area itself is checkerboarded so transparency is visible. For reliable scanning, place transparent exports over a solid light background so the quiet zones remain clear.

Barcode details

Output
UPC-A equivalent
Check digit
Action
Image size
Effective caption size

Checksum math