QR Code Generator
Generate high-resolution custom QR codes for websites, product landing pages, or UPI payment scan-to-pay packaging cards.
Custom QR Code Generation for E-Commerce Packaging & Payments
Quick Response (QR) codes have become standard across Indian retail and fulfillment. From UPI scan-to-pay packaging cards to digital product instruction manuals and warranty registration cards, QR codes allow customers to interact with your brand directly from their smartphone cameras without typing long URLs.
The QR Code Generator creates high-resolution static QR codes for website URLs, UPI payment requests (compatible with PhonePe, Google Pay, Paytm, and BHIM), WhatsApp customer support links, and plain text. Codes are rendered with customizable error correction levels for reliable scanning even on textured corrugated cartons.
Key E-Commerce Applications for Packaging QR Codes
- UPI Scan-to-Pay Packaging Inserts: For COD verification or direct customer repurchases, generate UPI string QR codes (
upi://pay?pa=merchant@vpa&pn=BrandName) for instant mobile payment scanning. - WhatsApp Customer Support: Direct buyers to your dedicated customer care WhatsApp number (
https://wa.me/91XXXXXXXXXX) to resolve transit damages before they leave negative marketplace reviews. - Digital User Manuals & Assembly Videos: Link to YouTube video tutorials or online PDF manuals, eliminating paper printing costs for multi-part assembly items.
- Review Prompts & Repeat Order Coupons: Direct customers to your brand website or catalog page with a pre-applied discount code.
UPI Deep Link URI Structure & NPCI Guidelines
The National Payments Corporation of India (NPCI) defines standard URI schemes for UPI transactions. A compliant merchant string follows the syntax: upi://pay?pa=merchant@upi&pn=StoreName&cu=INR. The pa parameter specifies the payee virtual payment address, pn provides the legal business name displayed on the payment screen, and cu locks the currency to Indian Rupees.
Encoding this standard string into a QR code allows buyers to complete payments seamlessly through any UPI application installed on their smartphones without typing bank accounts or IFSC codes.
Frequently Asked Questions
Will UPI QR codes work across all Indian payment apps?
Yes. Generating a standard UPI link string ensures universal compatibility across Google Pay, PhonePe, Paytm, BHIM, and bank mobile applications.
What error correction level should I choose for packaging inserts?
For packaging cards that might get crumpled or printed on rough cardboard, select Error Correction Level Q (25%) or Level H (30%) so the code scans even if partially obscured.
Can these QR codes expire over time?
No. The generated QR codes are static: the destination URL or text is encoded directly into the pattern without third-party redirect servers, so they never expire.
What is the minimum physical size for a printed QR code?
For reliable smartphone camera scanning from 20 to 30 cm away, print QR codes at a minimum size of 2 × 2 cm (roughly 0.8 × 0.8 inches).
Can I download the QR code in vector SVG format?
Yes. You can export in high-resolution PNG for direct printing or vector SVG for professional graphic design and box packaging printing.
Are entered URLs or merchant payment VPAs logged on your servers?
No. The generator runs entirely within your browser memory. No links, payment details, or phone numbers are recorded.
Can I encode a fixed transaction amount into a UPI QR code?
Yes. Adding the optional parameter &am=500 sets a fixed payment amount of 500 Rupees on the customer payment screen.
Does printing on kraft corrugated cardboard affect QR scanning?
Dark black ink on light kraft board provides sufficient contrast for modern camera sensors, provided error correction is set to Level M or higher.
Client-Side Security Guarantee: All document processing, vector coordinate cropping, and label generation occur 100% inside your local web browser memory via WebAssembly. No files, customer addresses, phone numbers, or invoices are uploaded to external servers.