How to Create a WiFi QR Code

To create a WiFi QR code, use your device’s network-sharing feature or a suitable WiFi QR generator. Enter the exact network name, matching security type, and password, then generate the image and test it on a phone that is not already connected.

It is a useful way to share guest access in a café, office, rental property, or event space. It saves people from typing a password. It does not hide that password from anyone who can read the code.

1. Set up the guest network you want to share

Use the visitor network rather than the network your business relies on for internal devices. Confirm the guest network’s isolation and access settings in your router or network system; a name containing “Guest” does not by itself establish those protections.

Before making the code, connect to that network manually. Check that the password works and that a visitor can reach the internet as intended. If the connection already fails without a QR code, fix the network first.

Choose where the printed code will be visible. A sign inside a guest room has a different audience from an image posted publicly online. Anyone who obtains the image can potentially extract and share the credentials.

2. Collect the exact network details

Field	What to enter	Easy mistake to avoid
Network name / SSID	The exact name configured for the guest network	Missing spaces, capitalization differences, or selecting a similarly named network.
Security type	The option that matches your network and generator’s supported formats	Guessing based on the label that looks most familiar.
Password	The current guest WiFi password	Adding a trailing space or confusing similar-looking characters.
Hidden network setting	The setting matching the network configuration	Enabling it without checking whether the network is actually hidden.

Basic WiFi QR generators commonly support personal-network credentials. Enterprise networks that require usernames, certificates, or other authentication may need a different setup. A captive portal may still ask the visitor to accept terms or sign in after joining.

3. Generate the QR code using a suitable tool

If your phone or computer can show a network QR code, that may be the simplest option. Apple documents a Show Network QR Code option in its iPhone WiFi password-sharing guide. Availability and navigation depend on the device and software version.

Otherwise, use a WiFi-specific generator that supports your network configuration. Review how it handles the credentials, especially whether it processes them locally or sends them to a service. Do not enter an internal business password into an unfamiliar website.

A common WiFi payload looks like WIFI:T:WPA;S:GuestNetwork;P:ExamplePassword;;. This is an illustrative example, not a password recommendation. The ZXing WiFi payload reference explains the fields and escaping rules.

Let a compatible generator handle the format. Characters such as semicolons and backslashes in names or passwords require careful encoding. A code can look normal while containing data a phone cannot interpret correctly.

4. Test joining from a device that is not already connected

A phone that already knows the network can hide mistakes in the QR payload. Use another device or remove the saved guest network before testing, provided you have the credentials needed to reconnect.

• Stand within normal range of the guest network.
• Scan the generated code and check the network name shown.
• Accept the join prompt if the device displays one.
• Confirm the phone connects to the intended network.
• Open a website and complete any expected portal step.
• Repeat on another type of phone where possible.

If the phone recognizes the code but cannot join, check the credentials and security configuration. If it joins but has no internet, inspect the router, upstream connection, or portal. Those are different problems from the camera being unable to read the image.

5. Print a clear sign and provide a fallback

Label the sign “Guest WiFi” and position it where visitors can scan comfortably. Preserve the blank border around the code and use strong contrast. Avoid reflective holders or cramped placements that force people to reach behind furniture.

Provide another way to obtain the network name and password for devices that do not support the payload. Depending on the setting, that may be readable details on the same sign or help from staff. Check a printed proof before producing multiple copies.

What happens when you change the WiFi password?

A standard WiFi QR code stores its original credentials. If the password or network name changes, generate a new image and replace the old signs. Editing a saved project does not update the pattern on paper.

This is where static and dynamic QR codes are often confused. A dynamic web code can point to an updated instructions page, but that is a website journey. It does not remotely replace credentials embedded in a direct WiFi QR pattern.

An online instructions page also requires a way to reach the internet first, which can be inconvenient for someone seeking WiFi. For direct guest joining, a compatible WiFi payload is usually the more straightforward workflow. Read the static vs. dynamic guide for the underlying distinction.

Use separate QR codes for other guest services

Keep “Join WiFi” separate from “View the menu,” “Read the welcome guide,” or “Leave a review.” Each label should match what the scan actually does. This makes the sign easier to understand and avoids sending people to an unrelated page.

QRCD’s dynamic web-link workflow is useful for those changing online destinations. For example, you can update a rental welcome guide without replacing its printed web-link code. See how to link a PDF guide and how to create a Google review code for those setups.

Frequently asked questions