What is a Barcode Generator?
A barcode generator turns text or numbers into a scannable code — a QR code for a link or message, or a traditional linear barcode like Code 128, Code 39, EAN-13, or UPC-A for product labeling and inventory. Our generator renders your barcode as a PNG image directly on our own server, ready to download and use in labels, packaging, documents, or anywhere else a scannable code is needed.
How to Generate a Barcode Online — Step by Step
- Choose a barcode type. Pick QR Code, Code 128, Code 39, EAN-13, UPC-A, or Data Matrix.
- Enter your text or number. Type the value to encode — each barcode type has its own valid character rules.
- Generate and download. Click "Generate Barcode" to preview it instantly, then download the PNG.
Why Use Our Barcode Generator?
- Supports QR codes and 5 common linear/matrix barcode formats.
- Instant preview before downloading.
- Every barcode is rendered on our own server — nothing is generated by a third party.
- Free, fast, and works with no signup.
Frequently Asked Questions
Which barcode type should I use?▾
Use a QR code for links, text, or contact info; EAN-13 or UPC-A for retail products; Code 128 or Code 39 for general-purpose inventory and shipping labels.
Why does my EAN-13 or UPC-A barcode fail to generate?▾
These formats require a specific number of digits (12-13 for EAN-13, 11-12 for UPC-A) and a valid check digit — double-check the number you entered matches the format's rules.
Can I use these barcodes commercially?▾
Yes — the generated PNG is yours to use. Note that using EAN/UPC barcodes for real retail products requires registering the number with the relevant standards body (GS1); this tool only renders the barcode image.
What size and format is the download?▾
A PNG image sized to fit the barcode content, with the encoded text printed underneath for verification.
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