Free Instant UPI QR Code Generator with Amount & Remarks

The Unified Payments Interface (UPI), developed by the National Payments Corporation of India (NPCI), relies on a standard uniform resource identifier (URI) scheme. When a customer scans a UPI QR code using any banking or payment mobile application (such as Google Pay, PhonePe, Paytm, or BHIM), the smartphone operating system intercepts the quick response matrix and resolves the embedded URI intent structure.

A fully compliant UPI intent URL string is constructed using standard key-value pairs formatted as follows:
upi://pay?pa=VPA_ADDRESS&pn=PAYEE_NAME&am=AMOUNT&tn=REMARKS&cu=INR

• pa (Payee Address): The Virtual Payment Address (VPA) or UPI ID registered with a PSP bank (e.g. merchant@icici).
• pn (Payee Name): The legal account holder or business entity name displayed during authorization.
• am (Amount): The requested monetary value encoded in INR decimal format (e.g. 250.50).
• tn (Transaction Note): Custom narrative, bill number, or invoice reference for bank statement reconciliation.
• cu (Currency Code): Standard three-letter ISO currency code, strictly designated as INR for Indian Rupee transfers.

In contemporary retail and digital commerce across India, payment QR codes are broadly categorized into two structural operational modes:

Unlike third-party QR generation platforms that route payment information through intermediary servers, UPI QR Pro operates 100% locally inside your web browser's client-side sandbox environment.

When you input your Virtual Payment Address, merchant title, or invoice amounts, native Vanilla JavaScript processes the inputs locally. The matrix positioning calculations and image rendering occur on your computer or mobile device hardware using modern HTML5 Canvas API and JavaScript math libraries. Zero financial metrics, UPI IDs, customer details, or IP logs are transmitted across the internet to any database.

This zero-knowledge architecture guarantees absolute data privacy, rendering your financial identity immune to third-party scraping, tracking cookies, database breaches, or unauthorized logging under India's Digital Personal Data Protection (DPDP) Act framework.

To ensure rapid camera focal acquisition and instant scanning across low-end or high-end smartphone camera modules, printed physical QR assets must maintain specific structural formatting:

• Contrast Ratio: Maintain sharp black modules on a pure white background (#000000 on #FFFFFF). Avoid printing low-contrast gray or pastel variations.
• Quiet Zone Margin: Preserve a clean white border (minimum 4-module width) surrounding all four sides of the square QR matrix to prevent background graphic interference.
• Vector SVG vs. Raster PNG: For large acrylic counter standees, vinyl store banners, or billboard signage, always export in Scalable Vector Graphics (SVG) format to eliminate pixelation and edge blurring at any print dimension.