How to Make a WiFi QR Code So Guests Connect Instantly
A Wi-Fi QR code turns a tedious password exchange into a single scan. This tutorial covers WPA, open networks, hidden SSIDs, and printing tips.
There is a better way to share your Wi-Fi than spelling out a 20-character password three times. A Wi-Fi QR code lets guests point their phone camera at a printed code and tap "Join" — no typing, no mistakes, no awkward repetition. This tutorial walks through creating one that works on iPhones and Androids alike.
How a Wi-Fi QR code works
A Wi-Fi QR code encodes a special text string in the format WIFI:T:WPA;S:YourNetwork;P:YourPassword;;. When a modern phone camera reads it, the operating system recognizes the WIFI: prefix and offers to connect to the network, filling in the SSID and password automatically.
The format is a standard that iOS, Android, and most camera apps understand natively, so no extra app is required on the guest's phone.
Step 1: Gather your network details
You need three pieces of information: the network name (SSID), the password, and the security type (WPA/WPA2/WPA3, WEP, or none for an open network). Find these in your router settings or on the sticker on the router itself.
The SSID is case-sensitive. Type it exactly as it appears when you search for networks on your phone, including capitalization and spaces.
Step 2: Generate the code
Open the Wi-Fi QR code generator, select the Wi-Fi type, and fill in the fields. The generator builds the WIFI: string for you — you never have to format it by hand. The preview updates live so you can confirm everything looks right.
Network name: HomeOffice-5G. Password: correct-horse-battery. Security: WPA. The generator encodes WIFI:T:WPA;S:HomeOffice-5G;P:correct-horse-battery;; into the image.
Handling special cases
Open networks (no password)
Choose "None" as the security type and leave the password blank. The code will connect guests to the open network with a single tap.
Hidden networks
If your router does not broadcast the SSID, tick the "Hidden network" option. This adds an H:true flag so the phone knows to search for a non-broadcasting name rather than waiting for it to appear.
WPA3
Select the WPA option — it covers WPA, WPA2, and WPA3. The phone and router negotiate the exact handshake based on your router settings, so you do not need a separate WPA3 choice.
Step 3: Test before you print
This step is non-negotiable. Scan the code on screen with a phone that is not already connected to the network. Confirm it prompts to join and that joining actually works. A typo in the SSID or password is invisible until you try to connect.
Test on both an iPhone and an Android if possible. Both support the format, but it is worth confirming your specific combination works.
Step 4: Print and place it
Print the code at least 2 × 2 cm — larger if people will scan from across a room. Place it where guests naturally look: a fridge magnet at home, a table tent in a café, a framed sign in a hotel room.
Use dark dots on a white background for the most reliable scanning, and keep a clear white margin around the code.
Where Wi-Fi QR codes shine
- Home — a card on the fridge so friends and family connect without asking.
- Cafés and restaurants — a table sign so customers hop on guest Wi-Fi instantly.
- Hotels and rentals — a framed code in each room, ending front-desk password calls.
- Offices — a desk placard for visitors and contractors.
- Events — a badge or lanyard insert so attendees get online fast.
Is it safe to share?
The password is encoded inside the QR code, so anyone who scans it can read and join the network. That is the point — but it means you should only share the printed code with people you trust. Do not post it publicly online, where anyone can screenshot and join.
For a guest network separate from your main network, a Wi-Fi QR code is ideal: guests get online easily, and your private devices stay on a more secure network.
What if I change my password?
Because the code is static, a password change means generating and reprinting a new code. If you rebrand your network often, consider a stable guest SSID and password so the code keeps working.
You are ready to share your Wi-Fi the easy way
A Wi-Fi QR code is one of the highest-utility QR uses there is — it removes friction for guests and saves you from repeating a password. Generate one, test it, print it, and enjoy the silence of never being asked for the Wi-Fi again.
Try it yourself
Generate the code from this article in your browser — free, no sign-up.
Frequently asked questions
Will my Wi-Fi password be visible to anyone who scans it?
Yes. The password is encoded in the code, so anyone who scans it can read and join the network. Only share the printed code with people you trust, and never post it publicly online.
Does it work with WPA3?
Yes. Select the WPA option, which covers WPA, WPA2, and WPA3. The phone and router handle the handshake based on your router settings.
Can I make a code for an open network?
Yes. Choose "None" as the security type and leave the password field empty.
Do guests need an app to scan it?
No. Modern iPhones and Androids read the code with their built-in camera and offer to join the network.
What happens if I change my Wi-Fi password?
You will need to generate and print a new code. Static codes cannot be updated after printing, so plan for a stable guest password if you want the code to last.