Is CustoQR really free?

Yes! CustoQR is 100% free forever. No hidden fees, no premium plans, no limitations. All features are available to everyone.

Do I need to create an account?

No registration or sign-up is required. Simply visit the website, customize your QR code, and download it instantly.

What file formats can I download?

You can download QR codes in PNG, SVG, and JPEG formats. SVG is recommended for print materials as it's infinitely scalable.

Can I add my logo to the QR code?

Yes! You can embed your company logo in the center of the QR code. We recommend using logos that are 20-30% of the QR code size for optimal scanning.

How many shapes are available?

CustoQR offers 31+ body shapes, 21+ eyeball shapes, and 21+ eye frame shapes, giving you thousands of possible combinations.

API Documentation

Simple API. Powerful Results.

Generate custom QR codes in any platform with just a few lines of code. Full TypeScript support included.

Full Documentation View on GitHub

Platform Integration Guides

Web (JavaScript/TypeScript)

Browser-based QR code generation with SVG output

Installation

npm i @intosoft/qrcode

Import

import { generateSVGString } from "@intosoft/qrcode";

Example Usage

const svg = generateSVGString({
  value: 'https://example.com',
  length: 300,
  shapes: {
    body: 'dots',
    eyeFrame: 'rounded',
    eyeball: 'circle'
  },
  colors: {
    body: '#667eea',
    eyeFrame: { topLeft: '#764ba2' }
  }
});

Configuration Options

generateSVGString() Parameters

All available configuration options for customizing your QR codes

valueRequired

The data to encode in the QR code (URL, text, etc.)

Type: string

length

Size of the QR code in pixels (default: 300)

Type: number

shapes.body

Body shape: square, dots, rounded, mosaic, etc. (31+ options)

Type: string

shapes.eyeFrame

Eye frame shape: square, circle, rounded, leaf, etc.

Type: string

shapes.eyeball

Eyeball shape: matches eyeFrame options

Type: string

colors.body

Body color as hex, or gradient object

Type: string | Gradient

logo.url

Logo image URL (PNG, JPEG, SVG, WebP)

Type: string

logo.size

Logo size in QR cells (default: 40)

Type: number

logo.padding

White space around logo (default: 0)

Type: number

logo.borderRadius

Logo corner radius in pixels

Type: number

errorCorrection

Error correction: L, M, Q, H (default: M)

Type: string

Additional Resources

Full Documentation

Complete guides for all platforms and features

View Docs

Live Examples

Interactive demos and code samples

Try Demo

GitHub Repository

Source code, issues, and contributions

View GitHub

Ready to Get Started?

Install the package and start generating custom QR codes in minutes

Try Interactive Demo NPM Package