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Gridtray

Wi-Fi QR Code Generator

Enter your network name and password. Guests point their camera at the code and join, no typing. Download the code or a ready-to-print card.

Content

Design

Pattern
Corners
Error correction
mod
Logo

PNG, JPG, SVG or WebP, up to 3 MB. It stays on your device.

Scan check

Scans reliably
  • Contrast18.9:1 between code and background.
  • Print sizeVersion 3, 29×29 modules. Print at least 2.0 cm wide.

Static code: the content is inside the image itself. It never expires and works without Gridtray.

How to use the wi-fi qr code generator

  1. Type the network name exactly as it appears in the Wi-Fi list, including capitals and spaces.
  2. Choose the security type (most home and business routers use WPA2 or WPA3) and enter the password.
  3. Turn on Hidden network only if your router does not broadcast its name.
  4. Style the code with your colors or logo, and check the scan result.
  5. Download the Printable card (1200 × 1600 px) for a frame, table tent or front desk, or just the code.

How a Wi-Fi QR code works

A Wi-Fi code holds a short line of text in a format phones understand, for example WIFI:T:WPA;S:Cafe Guest;P:espresso2026;;. The camera app on iPhone (iOS 11 and later) and on most Android phones (Android 10 and later) reads it and offers to join the network. Nothing is sent to us or to anyone else: the details are only in the printed pattern.

Special characters in the name or password, such as semicolons, commas and colons, must be escaped with a backslash, or the phone reads the wrong password. This generator escapes them for you.

Make a card that gets used

  • Print the card at least 10 cm wide and keep it at eye or table height, in good light.
  • Keep the code dark on light. The card always uses a white background so it scans under warm café lighting.
  • Decide whether to print the password. Turn off Print the password and the card says to ask staff, while the code still connects people.
  • Use a separate guest network, so visitors never share a network with your tills or office computers.

When you change the password

The password is part of the code, so a new password needs a new code. Gridtray never stores your password, not even in the page address: come back, type the new one, download and replace the card.

Questions

Is it safe to put my Wi-Fi password in a QR code?

The code contains the password in plain text, exactly like a password written on a card. Anyone who can scan it can join. Use it for a guest network, not your private one.

Why does my phone not offer to join?

Check the network name and security type match the router exactly. Names are case-sensitive. Very old phones may need a QR scanner app.

Does this work for networks without a password?

Yes. Choose 'Open network, no password' and the code joins directly.