Choosing a barcode format
Code 128 fits most alphanumeric labels. EAN-13 and UPC-A are retail product codes with fixed lengths and check digits. Code 39 is common in logistics and industrial labels.
Barcode Generator
Enter a value, pick a barcode format, and download a scannable barcode image. Format rules (like EAN-13 length) are checked before render.
How it works
- 1
Fill in the fields for the QR / barcode type you need.
- 2
Generate or wait for the preview to appear.
- 3
Download the image (PNG/SVG when offered) or copy the payload if shown.
Why use this tool
- Runs entirely in your browser — nothing is uploaded to a server.
- 100% free, no sign-up, no limits.
- Works in any modern browser — no app install, no extension, no account.
How to use Barcode Generator
Complete the form in Barcode Generator. The code is built in your browser from the fields you enter — download the image when it looks right.
Tips for better results
Keep payloads short for denser, easier scans. Test with your phone camera before printing.
Privacy and offline-friendly processing
Whenever possible, Barcode Generator processes your data locally with JavaScript in this page. That means drafts, secrets, and unfinished work stay on your device by default. Prefer this workflow when you do not want to upload sensitive text, tokens, passwords, or files to a third-party service.
Frequently asked questions
Can I print these barcodes?
Yes. Download the image and print at a size large enough for your scanner; avoid heavy compression.
Why does EAN-13 reject my input?
EAN-13 expects 12 digits (check digit computed) or a valid 13-digit code. Letters are not allowed.
Is my data uploaded when I use this tool?
For most FlyUtils tools, no. Processing happens in your browser with JavaScript. If a tool ever needs a server, that will be stated clearly on the page.
Is Barcode Generator free to use?
Yes. Barcode Generator is free, with no sign-up and no artificial usage caps for normal personal and work use.
Does Barcode Generator work on mobile?
Yes. The page is mobile-first, so you can paste input, tweak options, and copy results from a phone or tablet.