📱 QR Code Generator
Create custom QR codes for URLs, text, WiFi, contact info and more. Customize colors, download instantly — 100% free, no signup required.
🎯 Popular QR Code Use Cases
Website URLs
Link to your website, landing pages, or product pages
Contact Info
Share vCards with email, phone, and address
WiFi Networks
Let guests connect to WiFi instantly
App Downloads
Link directly to App Store or Play Store
Payments
PayPal, Venmo, or crypto payment links
Event Tickets
Registration pages or ticket verification
⚙️ How QR Codes Work
QR (Quick Response) codes were invented in 1994 by Denso Wave to track automotive parts. Today they're everywhere!
Anatomy of a QR Code
- Finder Patterns: The three large squares in corners help scanners locate the code
- Timing Patterns: Alternating black/white modules between finders for coordinate system
- Data Modules: The actual encoded information in the center area
- Error Correction: Reed-Solomon codes allow partial damage recovery (up to 30%)
Data Capacity
A standard QR code can store:
- Up to 7,089 numeric characters
- Up to 4,296 alphanumeric characters
- Up to 2,953 bytes of binary data
❓ Frequently Asked Questions
You can encode almost anything: URLs, plain text, email addresses (mailto:), phone numbers (tel:), SMS messages, WiFi credentials (WIFI:S:NetworkName;T:WPA;P:Password;;), vCard contact info, and more. URLs are the most common use case.
No! Static QR codes like the ones created here never expire. They simply encode data directly. However, if you encode a URL and that website goes offline, the QR code will still work but lead to a dead page. For trackable, editable QR codes, you'd need a paid dynamic QR service.
The minimum recommended size is 2cm × 2cm (0.8 × 0.8 inches) for reliable smartphone scanning at close range. For posters or signs meant to be scanned from a distance, add at least 10× the scanning distance as size (e.g., scan from 1 meter = minimum 10cm QR code).
Yes! Use the color pickers above to change the QR code and background colors. Just ensure there's enough contrast between them — dark QR on light background works best. Avoid using similar colors like light gray on white.
QR codes themselves are just data containers — they're not inherently secure or insecure. The security depends on where the QR code leads. Always be cautious scanning QR codes from unknown sources, as they could link to phishing sites. This generator creates codes locally in your browser; no data is sent to any server.
Yes! QR codes use Reed-Solomon error correction. Depending on the error correction level, they can still be read even if up to 30% is damaged. This is why you sometimes see QR codes with logos in the center — the error correction compensates for the covered area.
⭐ User Reviews
Simple and clean! Created QR codes for all my business cards in minutes. Love the color customization — matched my brand perfectly.
Used this for our wedding invitations! Made a QR code linking to our photo gallery. Guests loved it. Super easy to use.
Finally a QR generator that doesn't ask for my email! Quick, free, and works great. Bookmarked for future use.