Free Online Barcode Generator
Generate barcodes instantly in your browser with no software needed. Free, secure, and easy to use. Supports Code 128, EAN, UPC, and more. Perfect for labeling, inventory, and retail.
Frequently Asked Questions
Yes, the barcode generator is 100% free with no limits on usage or downloads.
The tool supports Code 128, EAN-13, EAN-8, UPC-A, Code 39, ITF, MSI, and Pharmacode formats.
Paste codes line by line or separated by commas/semicolons; duplicates are removed and you can download all at once as a ZIP.
The preview always shows the first valid value for the selected barcode type, errors are displayed if none are valid.
The quiet zone is the blank space around a barcode required for scanners to read correctly; you can set spec-safe, auto, or manual sizes.
Yes, choose PNG or SVG for digital use and PDF for label printers, with proper DPI and size options.
Yes, barcodes are optimized for Zebra, Brother, and other thermal printers at 203/300 DPI using black on white labels.
You can generate barcodes for internal use, but for retail GS1 codes you must obtain an official prefix from GS1.
In the print dialog select Actual size or 100%, turn off Fit to page, Shrink, or Scale, and choose the exact custom label size with no margins.
Set Media size to the exact label (e.g., 2.25x1.25 in), match orientation, disable auto-scaling, and set DPI to 203, 300, or 600 as exported.
Measure labels with a ruler, verify quiet zones on both sides, and test scanning; barcode should match the exact exported size within ±1–2%.
Increase label width, raise DPI, or use Actual size printing to avoid scaling that causes blurred or bleeding bars.
If scanning fails, increase quiet zones, confirm DPI matches, use a matte white label, and prefer Code 128 for mixed text and digits.
Yes, exported SVG preserves proportions and can be imported into design apps if you maintain aspect ratio during resizing.