QR Code Generator

URL, WiFi, UPI & vCard QR codes — PNG/SVG, bulk CSV

Finance & BusinessFREEYour data never leaves your browser

100% freeNo signupRuns in your browser

QR Code Generator is a free, browser-based tool that lets you url, wifi, upi & vcard qr codes — png/svg, bulk csv — with zero signup, zero installation. Your data never leaves your browser. Part of 116+ free developer and business tools at wowhow.cloud, built and maintained by a team with 14+ years of hands-on development experience.

TOOLQR Code Generator

URL

Customization

Size

Error Correction

Foreground

#000000

Background

#FFFFFF

Preview

Fill in the details and click Generate, or the QR will auto-generate as you type.

About QR Code Generator

QR codes power everything from UPI payments to restaurant menus and product packaging in 2026. Creating one that follows the right standard — NPCI UPI deep link spec for payments, vCard 3.0 for contacts, WPA2 credentials for WiFi — ensures compatibility across all scanning apps. This generator handles multiple QR types in a single interface and produces print-ready SVG alongside web-ready PNG, without requiring any server upload.

How It Works

Each QR type has a defined encoding specification. URL QR codes simply encode the full URL string. WiFi QR codes use the WIFI: standard format (WIFI:S:networkname;T:WPA;P:password;;) that Android and iOS both recognize natively for one-tap connection. UPI QR codes follow the NPCI unified payment interface deep link format: upi://pay?pa=VPA&pn=Name&am=Amount&tn=Note.

The tool uses the qrcode.js library running entirely in your browser to generate the matrix pattern. You can adjust module size, quiet zone, and error correction level (L, M, Q, H — from 7% to 30% data restoration capacity). Higher error correction creates a denser QR code but makes it more resilient to damage.

Bulk mode accepts a CSV where each row becomes one QR code. The resulting codes are packaged into a downloadable ZIP file, ideal for product labelling or event badge generation.

Who Is This For

A restaurant owner generating a QR code that links to their digital menu, using SVG export for large-format table standees.

A freelancer adding a UPI QR code to their invoice PDF so clients can scan and pay directly without copying account details.

An event organiser bulk-generating 200 QR codes from a CSV file containing attendee registration links for lanyard badges.

A retail store printing WiFi QR codes for customers to connect without sharing the password verbally.

Scope note: QR code generation happens in-browser using the qrcode.js library. Bulk generation from CSV is limited to 500 rows per batch. Dynamic QR codes (editable after printing) are not supported — this tool generates static QR codes only. For UPI, always test the generated code with your own UPI app before printing to confirm the amount and payee details are correct.

How to Use

Select QR type — URL, Text, WiFi, UPI, or vCard

Fill in the details (URL, WiFi password, UPI ID, etc.)

Customize colors and error correction level if desired

Download as PNG or SVG, or copy the embed code

Frequently Asked Questions

URL links, plain text, WiFi network credentials, UPI payment codes (India), and vCard contact cards.

Yes. It follows the NPCI UPI Deep Link specification: upi://pay?pa=...&pn=...&am=...&tn=...

Yes. Upload a CSV file with your data and generate multiple QR codes at once. Download them all as a ZIP file.

Yes. Change the foreground and background colors using color pickers. You can also adjust the size and error correction level.

Use Level H (30% error correction) for QR codes that will be printed on packaging or labels that may get dirty or partially damaged. Use Level M (15%) for digital displays where the code is always clean. Higher error correction makes the QR code denser but more resilient to physical wear.

SVG is a vector format — it scales to any size without pixelation, making it ideal for print use like business cards and banners. PNG is a raster format suitable for digital use on websites and documents. Always request SVG if you need to resize the QR code for large-format printing.

Yes. Generate a UPI QR code with your UPI ID (VPA) and display it at your counter. Customers can scan it with any UPI app (GPay, PhonePe, Paytm) to pay. Optionally pre-fill the amount and transaction note to speed up collections. The generated code follows the NPCI UPI deep link specification.