# Share Your Wi-Fi Safely with a QR Code: A Guide for Hosts Source: https://www.myqrstudio.in/blog/wifi-qr-code-guide For homestays, cafés, clinics and offices: set up a guest network, turn its details into a Wi-Fi QR code, and print cards that let visitors connect with one scan while your main network stays private. A homestay owner in Coorg greets new guests the same way every evening: bags down, chai on the table, and then the inevitable question, "What's the Wi-Fi password?" The password is a string of mixed-case letters and numbers that nobody types correctly the first time. Ten minutes later, someone is still trying. A Wi-Fi QR code ends that ritual. Guests point their camera at a card on the wall and their phone joins the network. This guide is about doing that properly: preparing the network first, entering the details correctly, and printing something that guests actually notice. ## Start with the network, not the code The QR code contains your network name and password in plain form, so anyone who scans it can join, and anyone with a QR reader can see the password. That is fine for a network you intend to share, and a bad idea for the one your business runs on. Before you make a code, sort out the network itself. - **Create a guest network.** Many routers have a guest network option in their settings page. It gives visitors internet access while keeping them away from your billing computer, CCTV recorder or shared printer. - **Pick a sensible name.** "Sharma Homestay Guest" is clearer than "TP-Link_5G_82F1". Guests should recognise it in their phone's list if they ever need to connect manually. - **Choose a strong password anyway.** Because nobody needs to type it, you can afford a long, random password. The code does the typing. - **Note the security type.** Your router settings will show it, usually WPA2 or WPA2/WPA3. You need this for the form. If you change the guest password every few months, plan to print new cards at the same time. More on that below. ## Making the code on My QR Studio Open the [Wi-Fi QR code generator](https://www.myqrstudio.in/qr-code-generator/wifi) and fill in four things. 1. **Network name.** Enter the SSID exactly as it appears on your phone's Wi-Fi list, up to 32 characters. Capital letters, spaces and symbols all matter. "Cafe Guest" and "cafe guest" are different networks as far as a phone is concerned. 2. **Password.** Type it carefully. You can reveal the field to check it before you continue. 3. **Security.** Choose *WPA/WPA2* for nearly all modern routers. *WPA3* is there for routers set to WPA3, *WEP* for very old equipment, and *Open (no password)* if your network has no password at all, in which case the password field is not needed. 4. **Hidden network.** Tick this only if your router does not broadcast the network name. Most guest networks are visible, so leave it unticked unless you deliberately hid it. The preview builds as you type. Before designing anything, test it: hold your phone up to the screen and make sure it offers to join the right network. If it fails, the cause is almost always a typo in the name or password. ## Designing a card guests will use A Wi-Fi code only helps if people realise what it is. A bare black square on a wall looks like it could be anything. - **Add a frame with words.** In the Frame tab, choose *Badge*, *Scan me* or *Call to action* and use the built-in "Join Wi-Fi" text, or write your own, such as "Scan for free Wi-Fi". - **Print the network name nearby.** If a guest's phone is old or the camera app is fussy, they can still connect by choosing the network by name. Print the network name on the card; add the password in text only if it is a guest network you are happy to show openly. - **Use your colours carefully.** The Design tab lets you change module patterns, eye shapes and colours, and you can apply one of the ready-made templates. Keep the code itself dark on a light background; the readability indicator will warn you if a colour choice makes scanning harder. - **Add your logo.** Upload a PNG, JPG, WebP or SVG in the Logo tab. The generator clears room behind it and raises error correction so it keeps scanning. - **Download at a good size.** SVG is best for a print shop. For a home printer, a PNG at 1,024 or 2,048 pixels is plenty. For a room card or table tent, 4 to 5 cm across is comfortable. For a wall sign in a lobby that people scan from a few steps away, go bigger, roughly 10 cm or more. ## Where Wi-Fi codes work best Think about the moment someone first wants internet access, and put the code there. - **Homestays and guesthouses:** on the welcome card in each room, inside the wardrobe door, or next to the room key. - **Cafés:** on table tents and at the order counter. Many cafés share one table card between the Wi-Fi code and a [menu QR code](https://www.myqrstudio.in/qr-code-generator/menu). - **Clinics and diagnostic centres:** in the waiting area, where patients and relatives sit for a while. - **Offices and co-working spaces:** at reception and in meeting rooms, so visitors are not handed a sticky note with the password. - **Coaching institutes and libraries:** on notice boards for the student network, if you offer one. - **At home:** a small print on the fridge for visiting family, who will thank you during long weekends. ## Common mistakes - **Sharing the main network.** If the printed code is for your business network, anyone who photographs it has your password. Use a guest network. - **Wrong security type.** Choosing WEP for a WPA2 router, or ticking Hidden when the network is visible, can stop phones joining. Match the router settings. - **Forgetting a password change.** When you change the router password, every printed code stops working at once. Make the new code before you change the password, then swap the cards the same day. - **Mismatched names after a router swap.** A new router from your internet provider often comes with a new default network name. Either rename it to match the old one or make fresh codes. - **Laminating with glossy film under bright lights.** Reflections can hide the code. Matte lamination scans more reliably. ## Why Wi-Fi codes are always static The network name and password travel inside the code itself, and the phone joins without opening any website, which is why My QR Studio offers Wi-Fi codes in static mode only. The good news is that the code works even when your internet connection is down, never expires, and does not depend on any service. The flip side is that the details are fixed once printed. If the password changes, the card has to change too. If your guests also need other information, such as house rules, check-out times or a local area guide, put that on a web page or PDF and give it its own code using the [PDF QR code generator](https://www.myqrstudio.in/qr-code-generator/pdf). Keep the Wi-Fi card simple and single-purpose. ## FAQ ### Do guests need to install an app? On most recent iPhones and Android phones, no. The built-in camera recognises a Wi-Fi code and shows a prompt to join the network. Some older Android phones need Google Lens or the camera's QR mode switched on. ### Is it safe to print my Wi-Fi password in a QR code? Anyone who scans the code can join and can read the password. That is why the code should point to a guest network that is kept separate from your business devices. ### Can one code work for both 2.4 GHz and 5 GHz? If your router uses one network name for both bands, one code covers it. If the bands have different names, make one code for the network you want guests to use. ### What happens if I change the password? The old code stops working, because the password is stored inside it. Make a new code with the new password and replace the printed cards. ### Can I hide the password from the card? The code itself carries the password, so you cannot hide it from someone with a QR reader. You can, however, leave the password off the printed text and show only the network name. Done with the network checklist? [Create your Wi-Fi QR code](https://www.myqrstudio.in/qr-code-generator/wifi), test it on two different phones, and put the cards out before your next guest arrives.