How to Create a Wi-Fi QR Code

Typing a long, mixed-case Wi-Fi password on someone else's phone is a small but universal annoyance — for guests at home, customers in a café, or visitors in an office. A Wi-Fi QR code fixes this: scan it, and a compatible phone can offer to join the network directly, with no typing required.

What Is a Wi-Fi QR Code?

A Wi-Fi QR code is a QR code that encodes your network's name and password (and its security type) instead of a link or a message. A phone that recognizes the format shows a prompt to join the network rather than opening a browser — the credentials are embedded directly in the pattern, so nothing needs to be looked up anywhere else.

How Does a Wi-Fi QR Code Work?

Under the hood, it's a specially formatted text string that both iOS and Android can recognize as network credentials:

WIFI:T:WPA;S:MyNetworkName;P:MyPassword;H:false;;

Breaking that down:

• T — the security type (WPA for WPA/WPA2/WPA3, WEP for older networks, or nopass for open networks).
• S — the SSID, i.e., the network name.
• P — the password (omitted entirely for open networks).
• H — whether the network is hidden (true) or broadcasting normally (false).

When a compatible phone's camera app recognizes this format, it typically offers a "Join Network" prompt instead of opening a browser. Whether that happens automatically, and how the prompt looks, depends on the device, its operating system version, and the app used to scan — it isn't guaranteed to behave identically on every phone.

How to Create a Wi-Fi QR Code

Step 1: Find Your Wi-Fi Network Name

The network name (SSID) is what shows up when a device searches for Wi-Fi. You can find it in your phone's own Wi-Fi settings while connected, on a label on the router itself, or in the router's admin page. Enter it exactly as it appears — it's case-sensitive, so "MyHomeWiFi" and "myhomewifi" are treated as different networks.

Step 2: Enter Your Wi-Fi Password

Type the password exactly as set on the router. This is the most common place small mistakes creep in — watch for a capital O vs. the digit 0, lowercase l vs. the digit 1, and any trailing space picked up while copying it from somewhere else.

Step 3: Select the Security Type

Go to the Wi-Fi QR code generator and choose the security type that matches your network:

• WPA / WPA2 / WPA3 — the right choice for nearly all modern routers.
• WEP — only for older hardware that doesn't support anything newer; it's a weak, outdated protocol otherwise.
• Open (no password) — for a network with no password at all. The password field isn't needed for this option.

Toggle hidden network on only if you've explicitly disabled SSID broadcast on the router — leave it off for a standard network that shows up normally when searching for Wi-Fi.

Step 4: Generate and Download the QR Code

Before generating, you can customize the code's appearance — colors (including a transparent background), a choice of dot and corner styles, an optional logo in the center, and the error correction level. If you add a logo, raise the error correction level to Quartile or High so the code stays reliable. Once you're happy with it, download as PNG, SVG, or JPG — SVG is the better choice if you're printing at a large size, since it stays sharp no matter how much it's scaled up.

Step 5: Test the Wi-Fi QR Code

Scan the code yourself before printing or handing it out — ideally with both an iPhone and an Android phone, since behavior can differ between them. Confirm the device actually offers to join the correct network, not just that the code scans at all.

How to Scan a Wi-Fi QR Code on iPhone

Open the built-in Camera app and point it at the code. A compatible iPhone typically shows a notification offering to join the network — tapping it connects without needing the password typed in. For the general mechanics of scanning with an iPhone's camera (including what to check if nothing happens), see how to scan a QR code on iPhone and Android.

How to Scan a Wi-Fi QR Code on Android

Open the Camera app (or Google Lens, depending on the phone) and point it at the code. On a compatible device, a prompt to join the network usually appears after a moment. Exact behavior varies by manufacturer and Android version — see the general scanning guide if the camera doesn't seem to recognize the code at all.

Useful Ways to Use a Wi-Fi QR Code

• Homes — a card by the door for guests, instead of reciting a password out loud.
• Airbnbs and hotel rooms — a card on the nightstand beats a sticky note with a password nobody can read.
• Cafés and restaurants — table tents that let customers connect without asking staff.
• Offices — a code at reception for visitors, on a guest network separate from the internal one.
• Events — a printed sign at a conference or venue with a temporary event network.
• Router welcome inserts — a printed card in the box matching the router's default credentials, before anyone changes them.

Common Wi-Fi QR Code Problems

• The code doesn't prompt to join. Confirm the security type you selected actually matches the network — a WPA network encoded as "Open," or vice versa, produces a code that scans but won't connect correctly.
• "Incorrect password" after scanning. Almost always a typo in the password field — retype it carefully, checking for the character mix-ups mentioned in Step 2.
• The network name doesn't match. SSIDs are case-sensitive; double-check the exact spelling and capitalization against your router settings.
• It worked, then stopped working. The router password was probably changed after the code was generated — see the note below about regenerating.
• Some devices connect, others don't. This can happen with unusual characters in the password or SSID — try simplifying them if you're able to, or confirm the specific device's camera app supports Wi-Fi QR codes at all.

Regenerate the code whenever the password changes. A Wi-Fi QR code is a snapshot of the credentials at the moment you made it — it doesn't update automatically if the router password changes later. Old printed copies will just silently fail to connect.

Is It Safe to Share a Wi-Fi QR Code?

The network name and password are encoded as plain text within the pattern — anyone who scans the code, or examines it with any QR reader, can potentially see or use those credentials, the same as if you'd written them on a piece of paper. There's no built-in way to restrict who's allowed to scan it.

Because of that, place a Wi-Fi QR code only where the people you actually want on your network can access it — inside a home or hotel room rather than a publicly visible storefront window, for example. If you're sharing a guest network you don't mind strangers joining, that's a different consideration than sharing your primary home or office network.

Frequently Asked Questions

Do I need my router's admin password to create this? No. You only need the network name and password that devices actually use to connect — not the separate login for the router's admin settings.

What if my network doesn't have a password? Select "Open (no password)" as the security type. The password field isn't required for that option.

Why does the generator reject my password? It checks real length rules for the security type you selected — WPA/WPA2/WPA3 passwords must be 8–63 characters, and WEP keys must be exactly 5 or 13 characters (or 10/26 hex digits) — rather than just confirming something was typed.

Will this work for enterprise Wi-Fi with individual logins? No. This format supports standard WPA/WPA2/WPA3 or WEP networks with one shared password, not enterprise networks (802.1X) that require each person to log in with their own credentials.

Can guests see the password after connecting? Possibly — some phones show the saved password in their Wi-Fi settings after joining, others don't. Treat the QR code as visible to anyone who scans it, regardless of what happens after.

Do I need an account to use this? No. There's no sign-up — open the generator, fill in your network details, and download the result.

Create a Wi-Fi QR Code for Free

Open the Wi-Fi QR code generator and enter your network's name and password. For other types — links, contact cards, and more — the general QR code guide covers the rest.