QR Code Generator
Generate customizable QR codes online for free. Add logos, change colors, adjust size and style.
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Enter text, URL, email, phone number, or any data...
What is a QR Code?
QR Code (Quick Response Code) is a two-dimensional barcode invented in 1994 by Denso Wave, a Japanese automotive company. Unlike traditional barcodes that can only store limited numerical data, QR codes can encode up to 4,296 alphanumeric characters including URLs, text, contact information, WiFi credentials, and more. QR codes are widely used for marketing, payments, authentication, and information sharing due to their ability to be quickly scanned by smartphone cameras.
How QR Codes Work
QR codes consist of black squares arranged on a white grid. They contain three corner squares for positioning, timing patterns for alignment, and data modules that encode information. The error correction feature uses Reed-Solomon codes to allow damaged codes (up to 30%) to still be readable. When scanned, the camera captures the pattern, decodes the data, and performs the associated action like opening a URL or displaying text.
Why Use Our QR Code Generator?
- ✓Custom Colors: Choose any foreground and background colors to match your brand identity
- ✓Add Logo: Place your company logo in the center of the QR code for professional branding
- ✓Multiple Styles: Select from square, rounded, or dots corner styles for unique designs
- ✓Error Correction: Choose from 4 levels (7%, 15%, 25%, 30%) to balance size and reliability
- ✓Adjustable Size: Generate QR codes from 200px to 600px for various use cases
- ✓Download Formats: Export as PNG for web or SVG for print materials
How to Use This QR Code Generator
- Enter the text, URL, or data you want to encode in the input field
- Customize appearance: adjust colors, size, margin, and corner style
- (Optional) Upload a logo to add branding - use High error correction
- Download your QR code as PNG (web) or SVG (print) format
Common Use Cases for QR Codes
- •Marketing Campaigns: Link to landing pages, promotions, or product information
- •Digital Business Cards: Share contact details (vCard) instantly
- •Mobile Payments: Enable quick payment via digital wallets
- •WiFi Sharing: Encode network credentials for easy guest access
- •Authentication: Two-factor authentication and secure logins
- •Inventory Management: Track products and assets with unique codes
Types of QR Code Data
URL/Website: https://example.com - Opens in browser
Plain Text: Any message up to 4,296 characters
Email: mailto:name@example.com - Opens email client
Phone: tel:+1234567890 - Initiates phone call
SMS: smsto:+1234567890:Hello - Sends text message
WiFi: WIFI:S:NetworkName;T:WPA;P:password;; - Connects to network
Frequently Asked Questions
What is the maximum data size for a QR code?
QR codes can store up to 4,296 alphanumeric characters or 7,089 numeric characters. However, larger data creates denser codes that are harder to scan. For best results, keep URLs under 100 characters and use URL shorteners for long links.
What is error correction and which level should I use?
Error correction allows QR codes to be read even when partially damaged or obscured. Low (7%) is suitable for clean environments, Medium (15%) for general use, Quartile (25%) for outdoor use, and High (30%) when adding a logo or expecting damage. Higher levels create denser codes.
Can I customize the QR code with my brand colors?
Yes! You can customize both foreground and background colors. However, ensure high contrast between them (dark foreground on light background) for reliable scanning. Avoid similar tones like light blue on white or dark purple on black.
Should I use PNG or SVG format?
Use PNG for digital displays (websites, apps, emails) as it's widely supported and loads quickly. Use SVG for print materials (business cards, posters, banners) as it's a vector format that scales infinitely without quality loss.
Can I add a logo to my QR code?
Yes! Upload your logo and it will be centered in the QR code. Always use High (30%) error correction level when adding a logo, as the logo covers part of the data area. Keep logos simple and not too large (15-25% of QR size) for best scanning results.
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