QR Code Generator Guide: Links, Wi-Fi, Text, Email & Phone
QR codes are useful only when they scan reliably and contain the exact data you intended. This guide explains the common QR formats in ConnexaX and the practical checks to make before you print or share a code.
Choose the correct QR type
A QR code can store plain text or structured data that phones understand as an action. A website QR normally stores a URL, a Wi-Fi QR stores network details, an email QR can open a prepared email, and a phone QR can open the dialer.
Website / Link
Use the complete destination URL. Test the final link after any redirect or tracking changes.
Wi-Fi
Enter the network name exactly, choose the correct security type and check the password before sharing.
Text
Useful for short instructions, IDs or notes that should appear directly after scanning.
Store the recipient address and optionally add a subject or pre-filled message.
Phone
Store a telephone number so compatible phones can offer a call action.
Printed QR
Use a sufficiently large export and preserve a clear quiet margin around the code.
Contrast matters more than decoration
Dark modules on a light background are the safest default. Very pale foreground colors, busy backgrounds or strong transparency can reduce scan reliability. If you customize colors, keep strong visual contrast and test on more than one device.
What error correction means
QR error-correction levels add redundancy so a code can sometimes remain readable after minor damage or obstruction. Higher correction can make the pattern denser, so it is not automatically better for every case. For ordinary digital use, a medium setting is a practical starting point.
Important for Wi-Fi and private information
Anyone who can scan a QR code may be able to read the data encoded in it. Do not publish Wi-Fi passwords, personal phone numbers or private text in a public place unless you intend to share that information.
Test before printing
Scan the exported PNG with your phone camera, confirm the displayed action, and test again after placing the QR inside your final poster, card or document. A QR that scans as a standalone image can become harder to read if it is printed too small or surrounded by clutter.
Create and test a QR code
Build a QR code for a link, Wi-Fi network, text, email or phone number, then scan the exported PNG before publishing it.