QR Code Generator & Scanner
Create and scan QR codes instantly for URLs, text, WiFi networks, and contact cards.No watermarks, no limits, completely free forever.
Need more tools? Try ourImage ConverterorJSON Formatter.
Secure & Private
All processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy and security.
Lightning Fast
Generate and scan QR codes instantly with our optimized processing engine. No waiting, no delays.
100% Free
No hidden costs, no subscription fees, no watermarks. Professional QR code tools that are completely free forever.
Multi-Device
Works perfectly on desktop, tablet, and mobile devices. Use your camera to scan or upload images to decode.
QR Code Generator
Generate and scan QR codes for URLs, text, WiFi networks, and contact cards instantly. Fully client-side QR code generator and scanner with PNG/SVG export options. Secure, free, and no registration required.
QR Code Type
Enter Information
QR Code Preview
Enter information to generate QR code
QR Code Scanner
Camera preview will appear here
How It Works
Create and scan QR codes in three simple steps
Choose Type
Select the type of QR code you want to create: text, URL, WiFi network, or contact card.
Enter Data
Fill in the required information and watch your QR code generate automatically in real-time.
Download & Share
Download your high-quality QR code or scan existing codes using your camera or uploaded images.
Key Features
Professional-grade tool designed for speed, security, and simplicity
Multiple QR Types
Generate QR codes for URLs, text, WiFi credentials, vCards, and more with custom styling options.
Scan & Decode
Use your camera or upload images to scan and decode QR codes instantly without additional apps.
High-Quality Export
Download QR codes in multiple sizes (PNG/SVG) with configurable error correction for optimal scanning.
How QR Code Generation & Scanning Works
Select data type, enter information, and instantly generate a scannable QR code. Or use your camera/upload to decode existing QR codes.
Select Type
Choose from text, URL, WiFi, vCard, or other data formats.
Enter Data
Fill in the information you want to encode—QR code generates in real-time.
Customize & Download
Adjust size, error correction level, and download as PNG or SVG.
Scan QR Codes
Use camera or upload image to decode and extract QR code data instantly.
Common QR Code Applications
Business & Marketing
Product packaging, business cards, print ads, and promotional materials.
Events & Venues
Event registration, check-in systems, menu access, and venue information.
WiFi & Connectivity
Simplified network sharing without typing passwords—perfect for cafes and offices.
Understanding QR Code Technology
QR codes use two-dimensional matrix patterns to store data that can be quickly scanned by cameras. Learn how they work and why they're so effective.
What is a QR Code?
Quick Response (QR) codes are two-dimensional barcodes invented by Denso Wave in 1994 for tracking automotive parts. Unlike traditional 1D barcodes, QR codes can store up to 4,296 alphanumeric characters and be scanned from any angle at high speed—hence the name "Quick Response."
- ✓ Stores text, URLs, WiFi, contacts
- ✓ Fast 360° scanning capability
- ✓ Error correction up to 30%
Error Correction Levels
QR codes use Reed-Solomon error correction, allowing them to be readable even when partially damaged or dirty. Higher correction levels (L, M, Q, H) increase reliability but make the code denser. Level H can recover up to 30% damaged data.
- • L (7%): Basic error recovery
- • M (15%): Standard for most uses
- • Q (25%): Good for industrial use
- • H (30%): Maximum damage tolerance
Data Capacity
QR codes can store varying amounts of data depending on the character type. Numeric data (0-9) packs most efficiently at 4,296 characters, while mixed alphanumeric allows 2,953 characters. Binary data (images/files) stores up to 2,953 bytes.
- • Numeric: 4,296 characters max
- • Alphanumeric: 2,953 characters
- • Binary/Kanji: 2,953 bytes
Scanning Technology
Modern smartphones use camera sensors and image processing algorithms to detect QR code positioning markers (the three squares in corners), align the grid, and decode the matrix pattern. Most phones have built-in QR scanning in the camera app.
- ✓ Native iOS/Android support
- ✓ No special app required
- ✓ Works with any camera
WiFi QR Codes
WiFi QR codes encode network credentials (SSID, password, security type) in a special format. When scanned, devices automatically connect to the network without manual password entry—perfect for guest access and shared spaces like cafes.
- • SSID and password encoded
- • One-tap network connection
- • WPA/WPA2/WEP support
vCard QR Codes
vCard (Virtual Contact File) QR codes store contact information in standardized format—name, phone, email, address, company, etc. Scanning instantly adds the contact to your phone without typing, ideal for business cards and networking.
- • Complete contact details
- • Direct phone book import
- • Universal vCard 3.0 format
Popular Use Cases
Discover the many ways QR codes can simplify your life and business
WiFi Sharing
Share your WiFi credentials instantly without typing long passwords.
Contact Cards
Share your contact information quickly with vCard QR codes.
Website Links
Direct people to your website, social media, or online store.Optimize images first for faster loading.
Product Information
Provide detailed product specs, manuals, or support links.
Event Details
Share event information, registration links, or calendar invites.
API Documentation
Link to API docs or endpoints. Use ourJSON FormatterorGraphQL Formatter to prepare your data.
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