QR Code Generator & Scanner
Create and scan QR codes online.
Generate QR codes for links, text, Wi-Fi, contact information, email, phone numbers and other supported data types. Scan QR codes from images or your camera and download high-quality results.
Create QR Codes Online
A versatile, client-side QR generation and scanning suite that supports custom logo branding, color styling, vector SVG/PNG exports, and real-time optical camera scanning without server uploads.
QR codes (Quick Response codes) have transformed modern digital interaction, enabling smartphone users to instantly open websites, connect to password-protected Wi-Fi networks, save contact business cards (vCards), compose emails, and make cashless payments with a single camera scan.
Unlike ordinary generators that route your data through third-party redirect tracking servers, ReducerImage generates direct, non-expiring static QR codes 100% locally in your browser memory.
Supported QR Payload Formats
Overview of supported content structures and smartphone native handling behaviors.
| Content Type | Standard Payload Schema | Native Device Action |
|---|---|---|
| Website URL | https://example.com | Opens default mobile browser |
| Wi-Fi Network | WIFI:S:SSID;T:WPA;P:pass;; | Connects to Wi-Fi without typing password |
| vCard Contact | BEGIN:VCARD ... END:VCARD | Prompts to save contact in Address Book |
| Email Message | mailto:user@mail.com?subject=... | Opens default email client with draft |
| WhatsApp Direct | https://wa.me/number?text=... | Opens WhatsApp chat with prefilled text |
How QR Error Correction Enables Logo Branding
QR codes incorporate Reed-Solomon Error Correction, dividing the matrix into redundant blocks. When you choose Level H (High - 30%), up to 30% of the QR matrix can be obscured or covered by a central company logo while remaining 100% readable by camera scanners.
How the Browser QR Engine Works
Our client-side QR generator and scanner workflow executes in four synchronized steps:
Schema Formatting
Constructs standardized data schemas (URL, Wi-Fi, vCard, mailto) with special-character escaping.
Matrix Synthesis
Computes binary finder patterns, timing tracks, alignment markers, and Reed-Solomon codewords.
Visual Compositing
Applies foreground/background colors, contrast safeguards, and renders center logo badges.
Optical Scanning
Decodes uploaded photos or live camera video frames in real time with jsQR.
How to Create & Scan QR Codes in 8 Easy Steps
Follow this simple workflow to design customized, branded QR codes in seconds.
Select Preset
Choose URL, Wi-Fi, vCard, Email, or WhatsApp.
Enter Payload
Fill in your website link, credentials, or text.
Pick Colors
Customize foreground and background tones.
Embed Logo
Upload your brand icon for professional styling.
Choose Size
Select 512px for web or 2048px for print.
Download Asset
Export pure vector SVG or crisp PNG files.
Scan Photo
Upload any QR image screenshot to decode.
Live Camera Scan
Scan physical QR codes with your webcam or phone.
Frequently Asked Questions
Answers to common questions about QR code generation, Wi-Fi presets, logo embedding, and optical camera scanning.