How to Create a WiFi QR Code for Easy Guest Access

There’s a ritual every host knows well: a guest arrives, asks for the WiFi password, and you spend 30 seconds squinting at the sticker on the bottom of your router, reading out a string like “xK7#mP2qLr” while they mistype it twice. A WiFi QR code eliminates this entirely. Guests point their camera at a printed or displayed code and connect in one tap — no passwords required.

This guide covers every method: built-in tools on iOS, Android, and Windows, free online generators for any platform, and best practices for keeping your guest network secure.

Set Up a Guest Network First

Before creating a QR code, it’s worth pointing it at a dedicated guest network rather than your main one. A guest network is isolated from your primary devices — guests can access the internet but can’t see your NAS, smart home devices, or other computers. Most modern routers support guest networks; see our guide on how to set up a guest WiFi network if you haven’t already.

Once your guest network is live, note its SSID (network name), password, and security type (WPA2 or WPA3). You’ll need these for any QR code method.

Method 1: iPhone and iPad (iOS 18 / iPadOS 18)

Apple added native WiFi QR code generation in iOS 18 via the Passwords app and through the Settings shortcut.

1. Open Settings → Wi-Fi.
2. Make sure you’re connected to the network you want to share (or tap it to connect).
3. Tap the Info (i) icon next to the network name.
4. Scroll down and tap Share Network QR Code.
5. A QR code appears on screen — you can screenshot it, AirDrop it, or hold your phone up for guests to scan directly.

On devices running iOS 11–17 that haven’t been updated, use the online generator method below instead.

Method 2: Mac (macOS Sequoia and Later)

macOS Sequoia brought the Passwords app to Mac, which includes WiFi QR code generation.

1. Open the Passwords app (search with Spotlight).
2. Click Wi-Fi in the sidebar.
3. Select the network you want to share.
4. Click the QR Code button to generate and display the code.
5. Print it, save it as an image, or let guests scan it from your screen.

Method 3: Android

Android has had built-in WiFi sharing via QR code since Android 10, and virtually all devices running Android 10 or later support it.

1. Open Settings → Wi-Fi (or Network & Internet on some phones).
2. Tap the network you’re connected to.
3. Tap Share or the QR Code icon (the exact label varies by manufacturer).
4. Your phone may require fingerprint or PIN authentication before displaying the code.
5. A QR code appears immediately — guests can scan it with any modern camera app.

On Samsung devices, the option is labeled QR code and sits at the bottom of the network detail screen. On Google Pixel phones, tap the Share icon next to the network name.

Method 4: Windows 11 (Version 24H2 and Later)

Windows 11 version 24H2 added native WiFi QR code generation directly in Settings.

1. Go to Settings → Network & Internet → Wi-Fi.
2. Click your connected network name.
3. Scroll down to find the Share button, which generates a QR code.

If you’re running an older Windows 11 version or Windows 10, use the free online generator method below.

Method 5: Free Online QR Code Generator (Any Platform)

If you don’t have access to a built-in tool, browser-based generators work on any device and require no sign-up.

Recommended free tools:

• QiFi.org — open-source, runs entirely in your browser (nothing is sent to a server)
• qr-code-generator.com/solutions/wifi-qr-code — easy interface, printable output
• wifiqrcode.com — minimal, fast, no account needed

All three ask for the same three fields: SSID, password, and security type (select WPA/WPA2 for most home routers, or WPA3/SAE if your router supports it). Click generate, and download the PNG.

Understanding the WiFi QR Code Format

WiFi QR codes encode a plain-text string following the ZXing specification. If you want to generate one programmatically or verify what a code contains, the format is:

WIFI:T:WPA;S:YourNetworkName;P:YourPassword;H:false;;

The fields are:

• T: Security type — WPA for WPA/WPA2, SAE for WPA3, WEP for legacy networks, or nopass for open networks
• S: Your SSID (network name)
• P: Your password
• H: true if your network is hidden, false otherwise

The trailing double semicolons (;;) are required — without them, some devices will prompt for a password even after scanning. If your password or SSID contains special characters like , ;, ,, ", or :, escape each one with a backslash (e.g., my;password).

Scanning Compatibility

The built-in camera app on the following devices can scan WiFi QR codes without any third-party app:

• iPhone/iPad: iOS 11 and later (camera app scans automatically)
• Android: Android 10 and later (most phones; some brands added it earlier)
• Windows 11: Camera app or the built-in QR scanner in the Start menu search
• Mac: iPhone camera via Continuity, or the Passwords app

For older devices, free apps like Google Lens or QR & Barcode Scanner handle WiFi QR codes reliably.

Security Tips for Shared WiFi QR Codes

Always Use WPA2 or WPA3

Never create a QR code for an open (passwordless) network. Open networks expose all traffic to anyone nearby. Stick to WPA2 at minimum; WPA3 is strongly preferred on modern routers. See our comparison of WPA2 vs WPA3 for details.

Rotate Passwords Periodically

Change your guest network password every 3–6 months and regenerate the QR code when you do. If you have a printed QR code posted somewhere, replace the printout at the same time. Stale printed codes that guests keep photographing are a security liability.

Don’t Post Your Main Network QR Code

Only generate QR codes for your guest network, not your primary network. Your main network is how your laptops, phones, and smart home devices communicate — access to it should stay tightly controlled. For best practices on locking down your main network, read our guide on how to secure your WiFi network.

Monitor Connected Devices

Even on a guest network, it’s good practice to periodically check who’s connected. Our guide on how to check who is on your WiFi covers the simplest ways to do this from any device.

Print and Display Ideas

Once you have the QR code image, a few practical options for displaying it:

• Printed card: Print it on a 4×6 index card and keep it with your router or in a visible spot near your desk.
• Frame: Print it with a “Guest WiFi” label and put it in a small picture frame — a clean solution for Airbnbs or home offices.
• Sticker: Office supply stores print custom stickers; a QR code sticker on the back of your router is a tidy permanent solution.
• Digital display: On a smart display or tablet you leave in a common area, show the QR code as a screensaver or lock screen image.

Creating a WiFi QR code takes about 90 seconds and saves that awkward password-recitation moment forever. Combine it with a properly configured guest network and you’ve got a setup that’s both welcoming and secure.