The most common question staff at cafés, hotels, restaurants, and co-working spaces field every day: "What's the Wi-Fi password?" A Wi-Fi QR code answers it before it is asked. Guests scan with their phone camera — no app needed — and the network is on their screen.
How Wi-Fi QR Codes Work
A Wi-Fi QR code encodes your network credentials in a standardised format: network name (SSID), password, and security type (WPA, WEP, or open). When a phone camera detects this format, iOS and Android both show a "Join Network" prompt. One tap, connected — no typing required.
Both iOS (since iOS 11) and Android (since Android 10) support Wi-Fi QR codes natively through the camera app. No third-party scanner needed.
Dynamic vs Static Wi-Fi QR Codes
Most Wi-Fi QR code generators create static codes, which is the format described above: the credentials are in the pattern. That is what makes the "Join Network" prompt possible, and it is also the problem — change your Wi-Fi password (for security reasons, or because it leaked) and every printed copy of the old code is useless.
A dynamic Wi-Fi code, the kind D-QR makes, encodes a short link instead. Scanning it opens a small page with the network name and a button that copies the password; the guest taps it, picks the network and pastes. Because that page is served live, you can change the password in the dashboard and every card already printed shows the new one on the next scan.
| Static Wi-Fi code | Dynamic Wi-Fi code | |
|---|---|---|
| What the scan does | Phone offers to join the network | Opens a page with the network name and a one-tap password copy |
| Password changes | Reprint every copy | Edit it in the dashboard; printed copies follow |
| Scan count | None | Every scan is counted |
| Works without internet | Yes | Needs mobile data to open the page |
Pick static for a network whose password genuinely never changes and where guests may have no mobile signal — a basement, a rural rental. Pick dynamic anywhere the password rotates, or where you want to know whether the card on the table is being used.
Security note: Wi-Fi QR codes do encode your actual password. Use them for guest networks, not your primary business network. Keep your main network on a separate SSID.
Where to Place Wi-Fi QR Codes
- Café / restaurant: Table cards, at the counter, on the menu
- Hotel: In-room card, on the TV screen, at reception
- Co-working space: At the entrance, on desk cards, in the kitchen
- Retail: At the checkout counter for staff to show customers
- Events: At the entrance alongside the event check-in
Design Tips for Wi-Fi QR Codes
Add a label to your QR code — "Scan for Free Wi-Fi" or "Scan to Connect" — so guests know what to do. Without a prompt, many people won't recognise it as a Wi-Fi code. On plans with design styling, D-QR can add the frame text to the QR image itself; on any plan, a line of text printed beside the code does the same job. If a guest says it will not connect, start with why a QR code stops working.
Print at a minimum of 4 × 4 cm for table cards. For wall signage, scale up proportionally. Use your brand colours to make the code feel intentional rather than an afterthought.
Quick Setup
- Create a free D-QR account
- Click New QR Code and choose the Wi-Fi type
- Enter your SSID, password, and select WPA (the most common security type)
- Print it with a line such as "Scan for Free Wi-Fi"
- Download as SVG and print
Total setup time: under three minutes. The result is a smoother guest experience and one fewer interruption for your team every day.