Technical Specifications
- Payload Format
- WIFI:T:WPA;S:MyNetwork;P:MyPassword;H:false;;
- Encryption Protocols
- WPA/WPA2/WPA3, WEP, Open (None)
- Compatibility
- Native iOS Camera and Android Quick Settings QR Scanner
Standard Industry Use Cases
- Restaurant, coffee shop, and bar table stands
- Hotel rooms and Airbnb guest welcome books
- Office conference rooms and visitor lobbies
- Home living room guest Wi-Fi sharing signs
How to Make, Print & Test Your Wi-Fi QR Code
Step by step
- Open the studio with the Wi-Fi QR type selected (the button above does this).
- Type the network name (SSID) exactly as your phone shows it. Names are case-sensitive, and spaces count.
- Choose the security type: WPA / WPA2 / WPA3 for almost every home and business router, WEP only for very old routers, or None for an open network.
- Enter the password, and tick Hidden Network if your router doesn't broadcast its name.
- Scan the preview with your phone camera (or the built-in barcode scanner) and join the network once, before you print anything.
- Download SVG for print shops and signs, or PNG at 2× or 4× for documents, then print.
Printing & size
- Size: print the code at least 2.5 cm (1 in) wide for a table card read up close. A common rule of thumb (not part of the QR standard) is a scanning distance of up to about 10× the code's width, so a 3 cm code suits roughly 30 cm. Test-scan at the real distance.
- Margin: keep the white border (quiet zone) around the code. Cropping it off is the most common reason a printed code won't scan.
- Contrast: dark code on a light background. Light-on-dark (inverted) codes fail on some Android phones.
- Surface: matte paper or a matte laminate. Glossy lamination causes glare under ceiling lights.
- Add a short line of text such as "Scan to join our Wi-Fi" and the network name, so guests know what the code is for and can still type it if needed.
Common mistakes
- Changing the password later. The password is inside the code, so the old code stops working. Make and print a new one whenever you change it.
- A typo in the network name, or the wrong capitalisation. The phone looks for exactly what's in the code.
- Company networks that ask for a username and password (WPA2/WPA3-Enterprise). Standard Wi-Fi QR codes are made for a single shared password, so use a guest network instead.
- Printing before testing. Scan the final file on at least one iPhone and one Android phone first.
Key Benefits of Wi-Fi QR
1-Tap Zero-Typing Wi-Fi Access
Guests connect instantly without mistyping complex WPA2/WPA3 passwords.
Native iOS & Android Integration
Built-in camera apps prompt "Join Network" without installing any third-party app.
Browser-Based Payload Generation
The Wi-Fi fields used to build the code are processed in your browser rather than submitted to UniversalCodeMaker's server. See the Privacy Policy for site analytics and advertising details.
What Code Do I Need for My Product? (Customer Decision Guide)
Choosing the right barcode format depends on where your product is sold, the packaging substrate, and scanner infrastructure:
Running a restaurant, cafe, boutique hotel, or Airbnb?
Place a Wi-Fi QR code on table stands or guest welcome books to eliminate repetitive password requests.
Setting up meeting rooms in a corporate office?
Provide temporary guest Wi-Fi access in conference lobbies with one quick camera scan.
Wi-Fi Security & Warning Against Dynamic QR Services
- Beware of third-party "dynamic QR code" generators! Many commercial sites route your Wi-Fi credentials through remote redirect servers that log user IPs and break when monthly subscriptions expire.
- Our studio generates direct, static Wi-Fi payloads in the widely used WIFI: format. UniversalCodeMaker does not control a redirect or expiry, but credentials, device support and network settings can change.
- For high-security enterprise environments, use a dedicated Guest VLAN to isolate visitors from internal office hardware.
Frequently Asked Questions
Do guests need to install an app to scan the Wi-Fi QR code?
No! Both modern iPhones (iOS 11+) and Android devices natively recognize Wi-Fi QR codes directly inside the built-in Camera app and display an instant "Join Network" button.
Is my Wi-Fi password sent to your servers?
Never. Our application runs 100% in your browser. Your network name and password never leave your device.
What happens to the QR code if I change my Wi-Fi password?
It stops working, because the password is stored inside the code itself (there's no server in between). Create a new code with the new password and replace the printed one.
Does a Wi-Fi QR code work for 5 GHz and 6 GHz networks?
Yes. The code contains the network name, security type and password, not a frequency band. The phone joins that network the same way it would if you typed the details.
Can I test the code before printing it?
Yes. Point your phone camera at the preview on screen, or upload the downloaded image to our free in-browser barcode scanner, which shows exactly what the code contains.