eg

bulk qr code generator.

csv of urls → zip of qr code pngs

error correction level
balanced
total rows
3
encodable
3
output size
512px

> preview, first 3 of 3

https://store.example.com/products/acme-tshirt-blk
https://store.example.com/products/acme-hoodie-wht
https://store.example.com/products/acme-jogger-gry

> worked example

Paste three product page URLs, set error correction to M and pixel size to 512px, then click download. The widget generates a 512×512px QR PNG for each URL and packages them into qr-codes.zip, filenames derived from the URL path. Preview shows up to 5 QR codes live as you type. Bumping error correction to Q allows a logo overlay without breaking scannability, the widget re-renders all previews immediately.

takeaway, Bulk QR generation for an entire product catalogue takes under a minute, no design tool or paid SaaS required.

> when operators reach for this

  • Shopify merchant adding QR codes to product hang-tags or packaging inserts, paste the full product URL list, download, hand off to the print vendor.
  • Event organiser generating individual QR codes for 50 sponsor landing pages to embed in printed programmes and digital assets.
  • Retail packaging designer who needs QR codes sized at 512px or larger to maintain scan reliability when printed at 38mm on a label.
  • Restaurant or hospitality operator creating table-specific QR menu codes, one URL per table, ZIP contains one file per table number.
  • Operations team embedding QR codes on warehouse bin labels to link to inventory management system URLs for mobile scan workflows.

> the calculation

  • error correction levelsL = 7% · M = 15% · Q = 25% · H = 30%, higher levels increase QR size but tolerate more damage or overlay
  • output sizeuser-selected 128–1024px square PNG · preview capped at 300px to avoid layout overflow
  • zip namingfilename = URL with protocol stripped and non-alphanumeric chars replaced by _, truncated at 80 chars
  • data capacityversion auto-selected by qrcode library to fit the input length at the chosen error correction level

> related calculators, skus & barcodes