Café and restaurant
On the table card next to the menu. “What’s the Wi-Fi password?” stops being the most common question at the counter.
Wi-Fi · WIFI QR code
Network name and password in one code. Guests point their camera at it and they are online — nobody has to read out or type a sixteen-character password. Free, no sign-up, and your Wi-Fi password never leaves your browser.
Enter the network name and password exactly as they appear in your router — upper and lower case matter. The preview updates as you type.
Guests scan and they are online — no reading passwords out loud.
Fill in at least one field on the left and your QR code appears right here.
Use SVG for print — it stays sharp at any size.
Higher levels survive scratches and logos but make the pattern denser.
For transfer codes the standard requires level M.
The light border is part of the code. Below 4 modules you are asking for trouble.
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How it works
Network name, password and security type. You will find them in your router’s Wi-Fi settings, the guest network usually under a menu item of its own.
As SVG for table cards, notices or the folder in a holiday flat, as PNG for the welcome email. The code is static and stays valid until you change the network name or password.
Guests open the camera app, point it at the code and tap the prompt to join. Done — no typos and no asking.
Uses
On the table card next to the menu. “What’s the Wi-Fi password?” stops being the most common question at the counter.
In the welcome folder or framed by the door. Guests are online before the suitcase is unpacked — without calling the host.
People who wait want to get online. A notice in the waiting room or the customer corner of the garage saves reception from asking all day.
For visitors, applicants and external contractors — on the guest network, kept apart from the company computers.
At the entrance of the club house, seminar room or marquee. If the password changes for the next season, simply print a new code.
On the fridge or in the guest room. Visitors scan instead of hunting behind the router for the label.
What the code contains
The code follows the WIFI format, which goes back to the open-source project ZXing and is understood by the camera apps of iPhone and Android. It carries exactly these details:
The password sits in the code as plain text — the format has no other way. Anyone who sees the code can read it, even from a photo. So put up the access to your guest network, not to your main network.
In practice
Printers, tills, network storage and cameras live on the main network. The guest network keeps visitors away from them, and most routers offer one out of the box. A notice for the guest network is harmless — one for the main network hands out your front-door key.
Laptops and older phones cannot scan a code. Write the network name and password in small print under the code, so people who cannot scan still get online.
Scan it once with an iPhone and once with an Android phone, ideally in the room where the code will hang. Otherwise a mistyped character in the password only shows up once the table cards are on every table.
The code carries the password itself, not a pointer to it. If you change the password, say for the new season, create a new code and swap the notices. In return it works without an account with any provider and without a detour through someone else’s servers.
Good to know
Link, contact card, address, bank transfer, email, phone, SMS or text — all in the same generator, just as free.
To the generator for all typesCurrent iPhones and Android phones, each with the built-in camera app. On Android, depending on the manufacturer, the scanner is also in the Wi-Fi settings, usually as a small QR icon next to “Add network”. No separate scanner app is needed.
Yes. Anyone who scans or photographs the code can read the password — the WIFI format has no encryption. On a notice that is not a flaw but the point: the code hands out access. That is why the guest network belongs in it, not the main network.
No. The code is created in your browser, and your input goes to no server — not even ours. You can check this: the generator keeps working if you disconnect from the internet after the page has loaded.
Yes. Semicolon, comma, colon, backslash and quotation mark separate the details from one another in the WIFI format. The generator therefore puts a backslash in front of them, and the phone reads the full password again. The passwords routers generate themselves often contain exactly these characters.
Almost always “WPA/WPA2/WPA3” — the setting for practically every network today. “WEP” is outdated and insecure; only use it if a very old router can do nothing else. “Open” is for networks with no password at all.
A Wi-Fi network whose router does not broadcast its name. It does not appear in any list, and only those who know the name can connect. The tick tells the phone to look for it specifically. By the way, hiding a network adds little security — a good password matters more.
No. The password is part of the pattern itself, so after a change you need a new code. As long as the network name and password stay the same, the old one works indefinitely — even if qrmacher.de should one day cease to exist.