All Converter Pro
Barcode Generator Online
Generate printable barcodes online for free: Code 128 for internal use, EAN-13 and UPC for retail products. Download as a sharp image for labels and packaging.
About this Barcode Generator tool
The barcode generator creates standard, scanner-readable barcodes from a number or text and gives you a crisp image to download for labels, packaging, price tags and inventory systems. Different jobs need different symbologies: Code 128 encodes letters and numbers and is the usual choice for internal inventory, asset tags and shipping labels; EAN-13 and UPC-A are the retail formats scanned at checkout tills worldwide. An important honest note for retail sellers: generating an EAN/UPC image is free, but the number inside it must be officially assigned to your product through GS1 — printing a made-up retail number will collide with real products in store databases. For purely internal use, any numbering scheme you invent is fine.
How to use Barcode Generator
- Open the tool and add your file, text or values.
- Review the available options such as page range, output format, quality, password or language.
- Start the process and keep the browser window open until it finishes.
- Download the result and continue with a related tool if needed.
Useful tips
- For scanned PDFs, tools with OCR support run text recognition automatically where possible.
- For large files, use compression tools before sharing by email or uploading to portals.
- For best results, upload clean files with the correct extension and avoid corrupted documents.
Frequently asked questions
Which barcode type should I choose?
Code 128 for anything internal — inventory, assets, shipping, membership cards — because it encodes both letters and numbers compactly. EAN-13 (worldwide) or UPC-A (North America) only for retail products scanned at checkout.
Can I just make up an EAN or UPC number for my product?
Not for retail sale. Retail barcode numbers are globally assigned through GS1; an invented number can collide with existing products at the till. For internal-only use, any number you choose works fine.
What is the difference between a barcode and a QR code?
A 1D barcode holds a short number or code and needs a line-of-sight laser or camera scan — ideal for tills and warehouses. A QR code holds much more data (like a full URL) and is designed for phone cameras. For linking people to a website, use the QR Code Generator instead.
Will the barcode scan reliably when printed?
Yes, if printed sharply at sufficient size with dark bars on a light background. Avoid stretching the image, low-contrast colors, and glossy laminate glare; always test with a real scanner before mass printing.
Can it encode letters as well as numbers?
Code 128 encodes letters, numbers and common symbols. EAN and UPC are numeric-only fixed-length retail formats.
Is the generator free for business use?
Yes — unlimited barcodes for labels, inventory and internal systems, free with no account.