What is this site for?
Generating barcodes and QR codes for stock, shipping labels, packaging and listings, without an account, a watermark, or a size limit on how many you make. Type a number or a link, get a symbol back, download it. Nothing you enter is uploaded anywhere; the barcode or QR code is built entirely in your browser.
Who is it for?
Sellers labelling stock for Amazon, eBay, Shopify or Walmart; warehouse and logistics staff who need internal tracking codes; and anyone stuck making a QR code inside Canva, Adobe Express, or another app that doesn't do it well. If you have a number or a link and need a symbol a scanner can read, this covers it.
Why does this site publish measured scan data?
Because most generators tell you a barcode is valid and stop there, and "valid" isn't the same as "still scans once you've shrunk it to fit a label." We printed four barcode formats at six sizes on a real laser printer and scanned every one with a phone camera, so the size guidance on this site comes from what actually failed to scan, not a spec sheet. See the full method and results.