How to Create a WiFi QR Code (2026 Complete Guide)

Nobody enjoys squinting at a tiny label on the back of a router while trying to type a 20-character password. A WiFi QR code solves this instantly — guests scan it with their phone camera and they're connected, no typing required. This guide walks you through every step, from finding your network credentials to placing a beautifully framed code on your coffee-shop counter or hotel reception desk.

Step 1: Find Your WiFi Network Name (SSID) and Password

Before you can generate anything, you need two pieces of information: your network's SSID (the name that appears in the WiFi list) and its password. Here's where to find them:

On Your Router

• Flip the router over — most manufacturers print the default SSID and password on a sticker on the base or back.
• Look for labels like Network Name, SSID, Wireless Key, Wi-Fi Password, or WPA2 Key.
• If you changed the defaults, the sticker will no longer be accurate — use one of the methods below instead.

From a Windows PC Already Connected

1. Click the WiFi icon in the system tray, then click Properties on your network.
2. Open Control Panel → Network and Sharing Center → Change adapter settings.
3. Right-click your WiFi adapter → Status → Wireless Properties → Security.
4. Tick Show characters to reveal the password.

From a Mac Already Connected

1. Open System Settings → Wi-Fi and click the i next to your network.
2. Click Copy Password (you may need to authenticate with Touch ID or your Mac password).

From Your Router's Admin Page

1. Open a browser and go to 192.168.1.1 or 192.168.0.1 (check your router manual for the correct address).
2. Log in with admin credentials (often printed on the router sticker).
3. Navigate to the Wireless or WiFi Settings section to see your SSID and password.

Step 2: Choose the Right Security Type

WiFi QR codes support three security types. Choosing the wrong one is one of the most common reasons a generated code fails to connect.

WPA / WPA2 (Most Common)

Select WPA/WPA2 if your router uses WPA-Personal, WPA2-Personal, or WPA3-Personal security — which is virtually every home and business router made after 2004. In the WiFi QR code standard (RFC-style MECARD format), both WPA2 and WPA3 are represented by the type string WPA. When in doubt, choose this option.

WEP (Legacy)

Choose WEP only if you have an old router that does not support WPA. WEP was deprecated in 2004 and is cryptographically broken — anyone nearby can crack a WEP password in minutes. If your router only supports WEP, upgrading your hardware is strongly recommended.

None / Open Network

Select None for an open network that requires no password. This is appropriate for some public hotspots where open access is intentional. Leave the password field blank when choosing this option.

Step 3: Handle Hidden Networks

A hidden network (also called a non-broadcasting SSID) does not appear in the list of available networks on nearby devices. It is still connectable — you just need to know the exact name. WiFi QR codes fully support hidden networks.

• When generating your QR code, look for a checkbox or toggle labelled Hidden Network or Hidden SSID and enable it.
• This adds the hidden flag to the WiFi QR string, instructing the device to connect proactively rather than waiting to see the network broadcast.
• Supported on iOS 14+ and Android 10+ natively via the camera app.
• Older Android devices may need a third-party QR scanner app with WiFi support.

Step 4: Generate the QR Code Using QRCartoon

With your SSID, password, security type, and hidden status in hand, you're ready to generate. Here's the exact process using the QRCartoon WiFi QR Code Generator:

1. Open the WiFi QR Code Generator tool (link below).
2. Enter your Network Name (SSID) exactly as it appears — including capitalisation, spaces, and special characters.
3. Enter your WiFi Password exactly as set on your router.
4. Select your Security Type: WPA/WPA2, WEP, or None.
5. If your network is hidden, enable the Hidden Network toggle.
6. Click Generate QR Code.
7. Preview the result — you should see a dense QR code pattern.
8. Download your code as PNG (for digital use) or SVG (for print).

Step 5: Test the QR Code

Never skip testing. A QR code that looks correct on screen can silently encode a typo that only appears when it fails to connect. Run through this checklist before printing a single copy:

1. Disconnect your test phone from the WiFi network first — if the phone is already connected, it won't try to reconnect and you won't know if the code works.
2. Open the native camera app on iOS or Android and point it at the QR code.
3. Tap the notification that appears: "Join network 'YourSSID'?"
4. Wait for the WiFi icon to appear in the status bar — this confirms the password was accepted.
5. Test on a second device (ideally a different platform — one iPhone, one Android).
6. Try scanning from a printed copy if you plan to print — screen glare is very different from ink on paper.

Step 6: Print and Place Your QR Code

Where you display your WiFi QR code — and how you present it — makes a huge difference to whether guests actually use it. Here are placement strategies for different environments.

Restaurants and Cafes

• Place a small tent card on each table with the QR code and a short label: "Free WiFi — just scan to connect."
• Add it to your menu (front or back cover).
• Post a larger A5 or A4 version near the entrance and at the counter.
• Minimum print size: 1.5 inches (3.8 cm) for table distance of about 12 inches.

Hotels and Accommodation

• Frame an A5 card and place it on the desk or nightstand in every room.
• Include one in the welcome pack or on the key card envelope.
• Display a large version (A3 or bigger) in the lobby and breakfast area.
• If each room has a unique network, generate individual codes per room.

Homes

• Print a small card and keep it in a visible spot — near the router, on the fridge, or in a guest room.
• A laminated card is ideal: it survives spills and lasts for years.
• Some homeowners frame it as a small art print on the wall — search "WiFi QR code frame" for ready-made options.

Offices and Coworking Spaces

• Display at the reception desk and in meeting rooms.
• If you have a separate guest network (recommended), label the QR code as "Guest WiFi" so staff know it's not the corporate network.
• Add it to your visitor badge or welcome email.

Print Quality Guidelines

• Minimum size: 1 inch x 1 inch (2.5 cm x 2.5 cm) for close-up scanning.
• Resolution: 300 DPI minimum for any printed material.
• Format: Use SVG for print — it scales to any size without becoming blurry.
• Contrast: Dark modules on a white or very light background. Avoid printing on coloured paper.
• Quiet zone: Leave at least 4 modules' worth of white space around all edges.

Is It Safe to Share a WiFi QR Code?

This is the most common concern — and the answer is nuanced. A WiFi QR code is essentially your password in scannable form. Anyone who scans it gains the same access as someone you've verbally told the password. That's fine in most contexts, but here are smart precautions:

• Use a dedicated guest network. Most modern routers let you create a separate guest SSID. Set a different password for it, restrict it from accessing your local devices (NAS, smart home, computers), and give that network's QR code to guests. Your main network stays private.
• Don't display it on social media. If you photograph your home and a WiFi QR code is visible in the background, anyone following you could scan it from the photo and connect to your network. QR codes in photos are fully functional.
• Update when you change the password. Old QR codes are effectively invalidated the moment the password changes — but make sure you replace any printed copies promptly so guests aren't frustrated.
• Physical security matters. A QR code in your home is only accessible to people inside your home, which is already a reasonable trust boundary. A restaurant QR code on the table is accessible to anyone seated — which is the intent.

Best Practices

• Label your QR code clearly. Always include the text "Scan to connect to WiFi" or a WiFi icon. Never assume people will understand what to do.
• Include the network name. Printing the SSID below the QR code helps users confirm they've joined the right network.
• Laminate printed cards. A laminated card survives years of use without fading — which matters because a degraded QR code stops scanning.
• Keep a digital backup. Store the QR code image file somewhere you can easily find it. When your password changes, regenerate and reprint in minutes.
• Use a strong, memorable guest password. If the QR code doesn't scan on a particular device, guests need a fallback. A password like SunnyBalcony42! is strong and human-typeable in a pinch.
• Rotate guest passwords periodically. For businesses, changing the guest network password monthly or quarterly and reprinting limits access to current and recent visitors only.

Common Mistakes to Avoid

• Typos in the SSID or password. These are invisible in the QR code — the only symptom is a failed connection. Always copy-paste rather than typing manually when possible.
• Wrong security type. Selecting WEP for a WPA2 network (or vice versa) causes silent connection failure even when the password is correct.
• Forgetting the hidden network flag. A QR code for a hidden network without the hidden flag will time out trying to find a broadcast that never comes.
• Printing too small. Anything under 1 inch is risky. At coffee-table distance (2-3 feet), aim for at least 2 inches.
• Not updating after a password change. Old printed codes become frustration generators. Build "update WiFi QR code" into your password-change checklist.
• Using a low-contrast colour scheme. Light grey on white or dark blue on black both reduce scan reliability dramatically. Stick to black on white.

Troubleshooting

The QR Code Won't Scan at All

• Check lighting — QR codes need adequate light. Dark rooms or heavy glare both cause scanning failures.
• Verify the print is sharp and not pixelated (use SVG or a high-resolution PNG at 300 DPI).
• Ensure there's enough quiet-zone (white border) around the code — covering even 1-2 modules breaks it.
• Try a different scanning app (Google Lens, a dedicated QR reader) if the native camera fails.

The Code Scans But Won't Connect

• Re-check your SSID: does it contain special characters? Some generators need these escaped — QRCartoon handles this automatically.
• Verify the password character by character. One wrong character — especially a zero vs. capital O, or a 1 vs. lowercase l — causes failure.
• Confirm the security type matches what your router actually uses (check the router admin page).
• If the network is hidden, make sure the Hidden toggle is enabled in the generator.

Works on Android But Not iPhone (or Vice Versa)

• iOS 11+ and Android 10+ support WiFi QR codes natively. Older OS versions may need a third-party app.
• Ensure your device's camera is focused — tap the screen directly on the QR code before trying to scan.
• On iPhone, the notification appears at the top of the screen and must be tapped — it won't connect automatically.

The Password Is Correct But Still Fails

• Check your router for MAC address filtering — if the guest device's MAC is blocked, the QR code can't help.
• Verify the router's DHCP server is running and has available IP addresses to assign.
• Restart the router if the issue is intermittent — sometimes the wireless radio needs a reset.

Conclusion

A WiFi QR code is one of the simplest, highest-impact upgrades you can make to your home or business. It takes less than two minutes to create, eliminates guest frustration entirely, and looks professional when properly framed and displayed. The key steps are: gather your exact SSID and password, select the right security type, generate the code, test it on two devices before printing, and place it prominently where guests naturally look. Follow the best practices above — especially using a guest network and updating the code after password changes — and you'll have a system that just works.