Enter content to generate
Your QR code will appear here
How to Create a QR Code
- Select the content type: URL, plain text, email address, or phone number.
- Enter your content in the input field.
- The QR code generates and updates instantly as you type.
- Adjust the size if needed for your use case.
- Click Download PNG to save the QR code as a high-resolution image.
What is a QR Code?
A QR (Quick Response) code is a two-dimensional barcode that smartphones can scan to instantly access the encoded information. Invented in 1994 by Denso Wave for automotive manufacturing, QR codes can encode text, URLs, contact information, and other data types within a square matrix of black and white pixels.
Modern QR codes include error correction — up to 30% of the code can be obscured or damaged and it will still scan correctly. This is why QR codes can have logos placed in the center without affecting readability.
Uses for QR Codes
- Marketing materials – Link printed flyers, posters, and packaging directly to landing pages or product pages.
- Business cards – Encode your contact details (vCard) so recipients can add them to their phone instantly.
- Restaurant menus – Replace physical menus with a link to a digital, always up-to-date version.
- Event check-in – Generate unique QR codes per attendee for fast entry scanning.
- WiFi sharing – Encode WiFi credentials so guests can connect without typing a password.
- Payment links – Link to payment pages or cryptocurrency addresses for fast mobile payments.
Frequently Asked Questions
What resolution should I use for print?
For business cards and small print, 300px is sufficient. For posters and large-format print, use 600px or larger. The downloaded PNG is sharp and can be scaled in a vector editor (Illustrator, Figma) without quality loss.
Can I put a logo inside the QR code?
QR codes have built-in error correction, so up to 30% of the data can be obscured and it will still scan. Many QR code tools let you overlay a logo in the center. After adding a logo, always test the QR code with multiple scanning apps.
Do QR codes expire?
Static QR codes (like those generated here) never expire — they encode the data directly. As long as the URL or content they point to remains valid, the QR code will work forever.
How much data can a QR code store?
Up to 4,296 alphanumeric characters or 7,089 numeric characters. For URLs, keep them short — longer URLs create denser QR codes that are harder to scan. Use a URL shortener if your link is very long.