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TOOLBOX · GENERATOR

ShareGuest Wi-Fi.

Enter your guest Wi-Fi name and password, then print or download the QR code. The password stays on your device; the code is generated directly in your browser.

Wi-Fi

Best for a guest Wi-Fi network separated from the internal network. Your input stays in this browser window.

Exactly as shown on devices, including uppercase and lowercase letters.

Encryption

Neither stored nor transmitted.

Your QR Code

Enter your Wi-Fi name and password. The QR code is generated here as you type.

Browser only: this tool does not send your input to TOMORIS or third parties and does not store it. The QR code is also generated only in your browser; downloading and printing require no connection.

STEP BY STEP

Guests on Wi-Fi.
Separate from the Office.

A QR code saves typing a long password. Use it only for Wi-Fi that separates guests from the internal network (network segmentation, business Wi-Fi).

  1. 01

    Set Up Guest Wi-Fi

    Create a separate guest network in the router or access point, isolated from servers, printers and workstations. This follows BSI recommendations for guests’ devices.

  2. 02

    Set a Strong Password

    BSI recommends at least 20 unrelated characters for Wi-Fi passwords. Length is no obstacle in a QR code.

  3. 03

    Generate and Test

    Enter the name and password, then scan with an iPhone and an Android device before printing.

  4. 04

    Display Locally

    Display the code at reception or in a meeting room. Keep it off your website and social media.

  5. 05

    Change the Password

    Set a new password at regular intervals and replace the sign. Old photos of the code will then stop working.

COMMON MISTAKES

Where Wi-Fi Signs
Often Go Wrong.

  • Code for Internal Wi-Fi

    Sharing internal Wi-Fi on a sign gives guests access to servers and printers. Use the code only for guest Wi-Fi.

  • Network Name Does Not Match

    The name must match exactly, including case, spaces and special characters, or the device cannot find the network.

  • Hidden Wi-Fi

    According to Apple, iOS does not support QR codes for hidden Wi-Fi networks. Guests with iPhones must configure the network manually.

  • Special Characters Untested

    Devices may interpret ; , : \ " or % in passwords differently. Test with several devices before displaying the code.

  • Code Generated on a Server

    If an online service generates the code on its server, it knows your password. This generator works only in your browser.

  • Password Never Changed

    Former guests also know a password that has been displayed at reception for years. Change it regularly and print again.

SOURCES

Open Format.
Open Library.

QUESTIONS

Good to Know.

Does my Wi-Fi password leave the device?

No. The name and password stay in this browser window. A library generates the QR code directly in your browser; printing and SVG/PNG downloads also run locally. Nothing is transmitted or stored, including by TOMORIS.

Which devices read the code?

iPhones read Wi-Fi QR codes through the camera app, according to Apple since iOS 11; iOS does not support hidden Wi-Fi networks this way. On Android, support depends on the version and manufacturer. Test with an iPhone and an Android device before displaying the code.

Is a Wi-Fi QR code secure?

The password is readable in the code. Anyone with a photo can connect within range. Display it only for a guest Wi-Fi network separated from the internal network, as BSI recommends for guests’ devices, and change the password regularly.

What happens to special characters in the password?

The generator escapes \ ; , : and " with a leading \ following the widespread ZXing format. The Wi-Fi Alliance’s WPA3 specification encodes special characters with % instead. If your password contains these characters, test with several devices or choose a password without them.

Does it work with WPA3?

Yes. Networks with a password use T:WPA in the code, as specified by the WPA3 specification. Devices supporting WPA3 then use the stronger method; older devices use WPA2.

TOOLBOX

More
Tools.

YOUR NEXT STEP

You Have the Result.
What Comes Next?

We assess findings, prioritize by risk and put changes into practice on request: as a project with EXPERTS or as ongoing operations with GRID.

Discuss the Result