Select format (Code 128, UPC-A, EAN-13, QR), enter data, click Generate. Download as PNG or SVG instantly.
Create professional barcodes for labels, inventory, shipping. No software needed, generate directly in browser.
Code 128, 39, UPC-A/E, EAN-13/8, ITF-14, QR codes.
Yes, standard formats work with any scanner.
PNG: fixed size printing; SVG: scales infinitely.
Yes, all generated to spec and work with standard scanners.
Barcodes encode data in one dimension (horizontal lines of varying widths). 1D barcodes (UPC, EAN, Code 128) store 20-30 characters typically — perfect for product identifiers, ISBNs, and inventory tracking. QR codes are 2D — they encode data both horizontally and vertically. They can store 4,000+ alphanumeric characters or 7,000+ numeric digits. Use QR codes for URLs, contact cards, payment info, anything that needs more data than a 1D barcode holds.
UPC-A (12 digits): standard US/Canada retail products. EAN-13 (13 digits): international retail. Code 128: high-density alphanumeric, used in logistics and shipping. Code 39: older alphanumeric standard, used in automotive and military. ISBN is just an EAN-13 with country code 978 or 979. For internal inventory, Code 128 is most flexible.
For reliable scanning, follow these rules: white space (quiet zone) around the barcode, minimum 10x the width of the thinnest bar. Contrast — black on white always works; avoid yellows, oranges, light blues. Size — print large enough that the thinnest bar is at least 0.01 inches wide (about 0.25mm). Test — scan with multiple devices before mass-printing. Quality — print at 300 DPI minimum, vector PDFs for variable-size use. Most barcode failures come from insufficient quiet zones or low print quality.
Generate professional barcodes instantly with the Toolzie Barcode Generator. Supports popular formats including Code 128, EAN-13, UPC-A, Code 39, and more. Download your barcode as a PNG or SVG for use on products, labels, and inventory systems.
EAN-13 is the international standard for retail products sold in stores. UPC-A is common in North America.
Yes, the barcodes generated are standard formats you can use on products and labels.
Code 128 is a versatile format used for shipping, logistics, and inventory — it can encode letters, numbers, and symbols.
Yes, use the width and height options to adjust the barcode dimensions before downloading.