Online Postnet Barcode Generator, generate Postnet barcodes for free and download barcode images.
DPI is available only for PNG and JPEG.
Valid characters
Explanation
Used to encode enveloppe in USA.
You can provide
5 digits (ZIP Code)
9 digits (ZIP+4 code)
11 digits (ZIP+4 code+2 digits)
(Those 2 digits are taken from your address. If your address is 6453, the code will be 53.)