Barcode Generator
Generate Code 128, EAN-13 and UPC barcodes.
Runs in your browser, nothing is uploadedFree, no signupNo watermarkPNG or SVG out
EAN-13 needs 12 to 13 digits, UPC-A needs 11 to 12 digits.
Three steps
How to use the barcode generator
- 01
Pick a barcode type
Code 128 for general use, EAN-13 for retail products, UPC-A for North American retail.
- 02
Enter the data
Type the number or text. Check digits are calculated for the formats that require them.
- 03
Download as PNG or SVG
SVG for anything going to print, where bar widths have to stay exact.
Why this one
What makes it different
Check digits handled
EAN-13 and UPC-A carry a calculated check digit, and getting it wrong produces a barcode that looks fine and scans as invalid.
Vector output for print
Barcode scanning depends on precise bar widths, and a rasterised barcode scaled up in a layout program is how unscannable labels get made.
The three formats that cover most jobs
Code 128 for internal and logistics use, EAN-13 and UPC-A for retail, rather than a list of thirty symbologies nobody needs.
How this tool handles your files
- Where it runs
- Your browser, not a server
- Uploads
- None, ever
- Account
- Not required
- Watermark
- Never added
The short version
About barcode generator
Barcodes are unglamorous and unforgiving: a code with the wrong check digit or slightly distorted bar widths looks completely normal to a person and completely wrong to a scanner, which is a problem you usually discover after printing. Generating as vector and printing at the intended size removes most of the ways this goes wrong.
Questions
Barcode Generator FAQ
Which barcode type should I use?
Code 128 for internal tracking, shipping and asset labels, since it encodes letters as well as numbers. EAN-13 for retail products sold outside North America, UPC-A for inside it.
Can I make my own retail barcode?
You can generate the image, but a barcode for a product sold in shops needs a number issued by GS1. Inventing one risks colliding with a real product.
Why will my printed barcode not scan?
Usually size, resolution or contrast. Printing a rasterised barcode too small, or scaling one up, distorts the bar widths. Print from SVG at the intended size, in black on white.
What is the check digit?
A final digit calculated from the others, which lets a scanner detect a misread. EAN-13 and UPC-A both require one, and it is computed for you here.
Free, and staying free
The tools are free because the icons are the business.
Thridy is a library of thousands of 3D icons in one consistent style, free for commercial use with no attribution and no account. The tools exist so you never have to upload an image to somebody else's server to resize it.
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