Hardware Optics Compiler
Generate the barcode formats that retail and warehouse scanners expect, ready to print onto product labels and shelf tags.
Barcode Generator
Effortlessly create various types of barcodes for your products, inventory, or personal use. Our Barcode Generator supports popular formats like Code 128, EAN-13, UPC-A, and more. Simply enter your data, choose your barcode type, and instantly generate a high-quality image ready for download. Streamline your operations and enhance your tracking capabilities with ease!
Barcodes That Actually Scan
Retail and warehouse systems depend on the barcode symbology being right for the job. Pick the wrong one and the scanner simply refuses to read the label, which is why the format matters as much as the number printed on it.
Universal Compatibility
Output strictly valid EAN-13 formatting necessary for standard international point-of-sale laser scraping routines.
High-Density Alphanumerics
Code 128 encodes letters and punctuation as well as digits, which makes it the right choice for asset tags, shelf locations, and work orders that are not retail products.
Pristine Output Matrices
Scale explicit download targets defining perfect boundary values. Zero pixelation ensures scanners never hit recursive errors.
Designed For Logistics
SKU Production Scaling
Export UPC-A and EAN-13 at print resolution for retail products. Both carry a check digit, so a mistyped number is caught rather than silently scanned wrong.
Direct Label Printing
Download at a resolution suited to thermal label printers. Keep the quiet-zone margins intact and test one printed label with your actual scanner before running a batch.
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Frequently Asked Questions
What is the difference between UPC and EAN?
UPC-A is the 12-digit retail barcode standard used mainly in North America. EAN-13 adds a 13th digit that encodes a country prefix, making it the global standard. Most modern scanners read both interchangeably.
How does Code 128 differ from UPC?
UPC encodes numbers only. Code 128 encodes full alphanumeric text — letters, numbers, and symbols — which makes it the right choice for internal SKUs, shipping labels, and warehouse tracking where codes contain letters.
Will these barcodes actually scan?
Yes — the generated barcodes follow the GS1 bar-width specifications that commercial laser and camera scanners expect. For print use, keep adequate white space (the "quiet zone") on both sides and avoid scaling the image non-proportionally.
Is my product data sent anywhere?
No. Barcodes are drawn entirely in your browser — the SKUs or codes you enter never leave your device, which matters when generating codes for unreleased products.
Can I just make up a UPC number for my product?
For internal use, yes. But to sell through retailers or marketplaces like Amazon, UPC/EAN numbers must be licensed from GS1 — retailers validate the prefix against the GS1 registry, and made-up codes will be rejected.
Related Generation Models
About This Tool
Barcode symbologies are not interchangeable. EAN-13 and UPC-A identify retail products and have fixed lengths with a check digit. Code 128 encodes arbitrary alphanumeric data and suits internal asset or inventory labels. Picking the wrong one is the usual reason a scanner refuses to read a printed label.
Barcodes are rendered in your browser from the data you type, and nothing is transmitted. If the label is going to print, test it with an actual scanner first — resolution and quiet-zone margins matter more than they appear to on screen. For details on analytics and third-party ad requests, see our Privacy Policy.