QR Code Frequently Asked Questions

QR stands for Quick Response. The name comes from the code's ability to be read quickly by scanners. QR codes were invented in 1994 by a Japanese company called Denso Wave for tracking automotive parts.

QR code stands for Quick Response code. The technology was designed to be decoded at high speed, which is why it was named "Quick Response" rather than just "barcode" or "2D code."

QR codes were invented in 1994. They became publicly available in 1999 and gained widespread use with smartphones in the 2010s. The COVID-19 pandemic in 2020 accelerated adoption for contactless menus and check-ins.

To create a QR code:

1. Go to qr.strt.it
2. Choose what type of information you want to encode (website, contact, event)
3. Enter your information
4. Click the generate button
5. Download the QR code image

The entire process takes about 30 seconds and requires no technical knowledge.

No. qr.strt.it does not require registration, login, or payment. Simply visit the website and start creating immediately.

QR codes may fail to scan for these reasons:

• Too small: Print QR codes at least 1 inch (2.5 cm) square
• Poor contrast: Use black on white for best results
• Damaged or dirty: Keep printed codes clean and undamaged
• Poor lighting: Scan in well-lit conditions
• Camera focus: Hold phone steady and let camera focus
• Too much data: Keep encoded information under 2000 characters

Some phones have a setting to disable automatic QR code scanning in the camera app. You might want to turn this off if:

• Accidental scans are annoying
• Privacy concerns about automatic detection
• Battery saving preferences

However, most users keep it enabled for convenience. You can usually enable or disable this in your phone's camera settings.

Most smartphones made after 2017 can scan QR codes with their built-in camera app:

• iPhone (iOS 11 and later)
• Android phones (Android 8 and later)
• Modern Samsung, Google Pixel, OnePlus, etc.

No special app is needed on modern phones.

Yes. QR codes are static images that contain encoded data. Once created, they work permanently. Unlike dynamic QR services that expire, codes created at qr.strt.it never stop working because the data is embedded directly in the code itself.

No. QR codes are static - the data is permanently encoded in the image. To change the information, you need to create a new QR code. This takes only seconds at qr.strt.it.

Business cards generated at qr.strt.it include:

• Your printed information (name, company, contact details)
• A QR code containing all your information in vCard format

When someone scans the QR code, their phone can save all your contact information automatically without typing.

Yes. The business cards are generated at 1800x1050 pixels, which is print-ready quality. You can:

• Print at home on cardstock
• Send to professional printing services
• Print at office supply stores (FedEx, Staples, etc.)

Standard business card size is 3.5 x 2 inches.

For questions about using qr.strt.it, read the guide or contact [email protected].

For API documentation and developer resources, visit a.strt.it.