LINE QR code for your shop: let customers add you in one scan
Make a LINE QR code from your OA @ID, a LINE ID or a lin.ee link so customers add you or open a chat with a message ready. Where to put it and how to test.
Articles
How to use PromptPay QR codes, barcodes and tracked QR codes: practical guides and tips for shops and businesses.
What is a dynamic QR code? Tracked codes you can edit after printing
A dynamic QR code points at a short link, so you can change its destination after printing and count scans. How QRnaka tracked codes work and what they cost.
Do QR codes expire? Static and dynamic QR codes explained
A plain QR code carries its own data and has no expiry date. A dynamic one depends on the service behind it. Know which you have before you print.
Check a PromptPay QR before paying: what a reader can and can't tell
See which PromptPay number and amount a code pays before you pay, why a correct checksum is not proof, and how shops can check their own signs.
Bulk QR codes from Excel or CSV: hundreds in one ZIP file
Turn an Excel or Google Sheets list into up to 1,000 QR codes or barcodes at once: set up two columns, paste or upload a CSV, get a ZIP with an index.csv.
Bill payment QR for business: Biller ID, Ref1 and Ref2 explained
How a Thai bill payment QR differs from PromptPay, what the Biller ID, Ref1 and Ref2 are, where they come from, and how to make the code free on QRnaka.
Barcode types explained: EAN-13 vs Code 128 and when to use each
EAN-13, UPC, Code 128, ITF-14, GS1-128 and 2D codes: what each barcode is for, how check digits work, and when you need a registered product number.
Make a Wi-Fi QR code for your café: guests scan to get online
A Wi-Fi QR code lets customers join without typing the password. What the form asks, a separate guest network, where to place the sign and how to test it.