ConvertDuck

QR Code Generator

Create QR codes for URLs, text, WiFi, and more.

Customize

256px

Configure options above and click Generate.

Configure options above and click Generate.

Secure & Custom QR Code Creation

Whether you need a digital menu for your restaurant or a quick WiFi access code for guests, this tool converts your data into scannable 2D barcodes instantly. Unlike server-based generators, we use your browser's Canvas API to render codes locally. This ensures your private data—like WiFi passwords or contact details—never leaves your device.

How to Generate a Custom QR Code

1. Select Content Type

Choose between URL, Text, WiFi, or vCard based on what you want to share.

Use 'WiFi' to let guests connect without typing passwords.

2. Enter Data & Customize

Input your details and adjust the foreground/background colors. You can also upload a central logo.

Ensure high contrast (dark foreground on light background) for better scanning.

3. Download High-Res PNG

Once generated, download the image file. It's ready for print or digital sharing immediately.

Why Professionals Use This Tool

  • ✓ 100% Client-Side Privacy

    Your data is processed entirely in your browser using JavaScript. No information is ever sent to or stored on our servers.

  • ✓ Logo Integration

    Brand your codes by embedding your logo in the center using our Canvas overlay technology.

  • ✓ High Error Correction

    We use 'H' level error correction, allowing your code to remain scannable even if 30% of it is damaged or covered by a logo.

Technical Specifications

Output Format High-Resolution PNG (Canvas Rendered)
Supported Data URL, Plain Text, WPA/WEP WiFi, vCard 3.0
Security Local Execution (No API calls)
Customization Size (128-512px), RGB Colors, Logo Overlay

Static vs Dynamic Generators

Feature This Tool (Static) Paid Dynamic Services
Expiration Never Expire (Permanent) Stops working if subscription ends
Privacy Private (Local) Data tracked on server
Scan Limits Unlimited Often capped per month

Common Questions About QR Codes

Q. Will my QR code expire? ▼
No. The codes generated here are 'static', meaning the data is directly embedded in the image. They will work forever.
Q. Why isn't my camera scanning the code? ▼
Check the color contrast. Scanners struggle if the foreground is lighter than the background or if the colors are too similar.
Q. Is it safe to put my WiFi password here? ▼
Yes. Since the code runs locally in your browser, your password is never transmitted over the internet.
Q. What is the best size for printing? ▼
For brochures, we recommend at least 300px (approx 3cm). For billboards, scale up accordingly to ensure clarity.