WiFi QR Code Generator – Create & Share Your Network Instantly (2025)

Create a WiFi QR code in seconds. Learn the exact WPA format, troubleshoot iOS and Android scanning issues, and get design tips for cafes, offices, and Airbnbs.

Complete Guide — 2025

WiFi QR Code Generator
+ Complete Setup Guide

Let guests join your WiFi with one scan — no password typing. Create yours below, then learn how it works.

📶 WiFi QR Code String Generator

Enter your network details — get the WiFi string instantly. Then generate your QR code with ScansTrack.

Exactly as it appears on your router.
Check your router settings if unsure.
Leave blank for open networks. Not saved or transmitted.
Most networks are visible.
Your WiFi String (for QR encoding)
Enter your network name above to generate the WiFi string…
🔳 Generate QR Code →
✅ Copied!

🔒 Your password never leaves your browser. The string is generated client-side.

What Is a WiFi QR Code?

A WiFi QR code encodes your network credentials (SSID, password, and security type) into a scannable QR code. When a guest scans it with their phone's camera, their device automatically prompts them to join your WiFi — no typing required.

The technology is supported natively on iOS 11+ (via the Camera app) and Android 10+ (via Camera or Google Lens). Older devices need a dedicated QR code scanner app, but these are widely available for free.

WiFi QR codes are functionally identical to typing the password manually — the phone just reads the credentials from the QR image instead of your keyboard. The QR code contains a specially formatted text string that follows the WiFi Network Information (WIFI:) format.

✅ Privacy note Your password is encoded inside the QR code. Anyone who can scan the QR code can join your network — treat a printed WiFi QR code with the same care as a written password.

The Exact WiFi QR Code Format

The WiFi QR string follows a specific format that all devices recognize. Here it is for WPA/WPA2 (the most common security type):

WIFI:T:WPA;S:NetworkName;P:YourPassword;;

Breaking it down:

  • WIFI: — Protocol identifier (must be uppercase)
  • T:WPA — Security type: WPA, WEP, or nopass
  • S:NetworkName — Your SSID (network name, case-sensitive)
  • P:YourPassword — Your WiFi password
  • ;; — Double semicolon terminates the string (required)

For a hidden network, add H:true:

WIFI:T:WPA;S:HiddenNetwork;P:MyPassword;H:true;;

For an open network (no password):

WIFI:T:nopass;S:CafeGuest;;

For WEP security (older routers):

WIFI:T:WEP;S:OldNetwork;P:wepkey;;
⚠️ Special characters in SSID or password If your network name or password contains special characters (; , \ " :), they must be escaped with a backslash. For example, a password like Pass;word becomes Pass\;word in the string. Our generator above handles this automatically.

How to Create a WiFi QR Code (Step-by-Step)

  1. Find your WiFi credentials. On your router's admin page, WiFi settings, or the label on the bottom of the router. You need the exact SSID (network name, case-sensitive) and password.
  2. Generate the WiFi string. Use the interactive tool above — type your SSID, password, and security type. The correct WiFi string is generated instantly in your browser.
  3. Convert to a QR code. Click "Generate QR Code" to open ScansTrack's QR generator. The WiFi string is pre-filled. Choose your QR code size (300×300px minimum for printing) and download as PNG or SVG.
  4. Test it before printing. Scan your QR code with your phone. It should show a prompt to join your network. Test on both iOS and Android if possible.
  5. Print and display. Print at minimum 2×2 inches (5×5cm) for reliable scanning. Laminate if it'll be in a high-traffic area. Display at eye level with a short instruction: "Scan to join WiFi."

📱 Generate Your WiFi QR Code on ScansTrack

Free QR code generator. Download as PNG or SVG. No account required. Track scan analytics optionally.

Create WiFi QR Code →

Troubleshooting: iOS vs Android

WiFi QR codes work on most modern smartphones, but there are platform-specific quirks worth knowing.

🍎 iOS (iPhone / iPad)

  • Works natively in the Camera app since iOS 11
  • A yellow banner appears: "Join [network name]?" — tap to connect
  • iOS 16+ sometimes requires a second confirmation
  • If it doesn't work: Settings → General → Language & Region (ensure region is set correctly)
  • Safari or Chrome scanning doesn't work — must use Camera app or Google Lens
  • If QR code prompt doesn't appear, check Settings → Camera → Scan QR Codes is ON

🤖 Android

  • Android 10+ supports WiFi QR natively via Camera or Google Lens
  • Older Android: install a QR scanner app (e.g. QR Code Reader by Scan)
  • Some Samsung devices use Bixby Vision — may not support WiFi QR. Use Google Lens instead.
  • Android also has a built-in "Share WiFi" feature (Settings → WiFi → Share) that generates a QR code for the currently connected network
  • If connecting fails: ensure your Android's date/time is correct (affects WPA authentication)

Common Issues & Fixes

  • QR code scans but doesn't connect: Wrong password in the string. Regenerate with the correct password — passwords are case-sensitive.
  • QR code scan shows no prompt: The camera app may not support WiFi QR. Try Google Lens.
  • Connected but no internet: The QR code worked, but there may be a router issue (DNS, DHCP). The QR code itself is fine.
  • QR code too blurry to scan: Print at a larger size (minimum 2"×2"). Avoid glossy paper that causes glare.
  • Network name has special characters: Use the generator above — it handles escaping automatically.
  • WPA3 network: Use T:WPA (not WPA3) — WPA3 is backwards-compatible with the same string format.

Use Cases: Where WiFi QR Codes Shine

☕

Cafes & Restaurants

Print QR codes on table cards, receipts, or chalkboards. Reduces staff interruptions from "what's the WiFi password?" by 100%. Update the QR code if you change the password — print new cards.

🏢

Offices & Coworking

Post the guest WiFi QR code in meeting rooms and reception. Visitors connect instantly without bothering the front desk. Keep it on a separate guest VLAN for security.

🏠

Airbnb & Short-Term Rentals

Include a WiFi QR code in your welcome packet or frame it on the wall. Guests connect immediately on arrival. A common 5-star review driver: "Easy WiFi setup!"

🎪

Events & Conferences

Display on presentation slides, banners, or lanyards. Attendees can scan during the event intro. Perfect for temporary event networks — dispose of the QR code after the event.

🏪

Retail Stores

Customer-facing WiFi keeps shoppers in-store longer. A QR code at the entrance makes onboarding effortless. Pair with a captive portal for email capture.

🏥

Healthcare Waiting Rooms

Patients in waiting rooms appreciate easy WiFi access. A QR code on a poster is non-intrusive and doesn't require staff involvement — reducing administrative burden.

Design Tips for WiFi QR Codes

A WiFi QR code that nobody can scan is useless. Here's how to make yours work reliably in the real world:

Size & Placement

  • Minimum print size: 2"×2" (5cm×5cm) at 300 DPI. Smaller QR codes often fail in low light.
  • Leave a quiet zone (white border) of at least 10% of the QR code's width on all sides — this is required for scanning to work.
  • Eye level is ideal. QR codes on the floor or ceiling are rarely scanned.
  • Distance from the scanner: most phones scan reliably from 6"–24" (15–60cm). Larger QR codes allow greater distance.

Color & Contrast

  • High contrast is non-negotiable. Dark modules on a light background — not light on dark.
  • Black on white is always reliable. Colored QR codes (dark blue on light yellow, etc.) can work but reduce scan reliability.
  • Avoid gradients in the QR code area — they reduce contrast and fail in varying light conditions.
  • Never use transparent backgrounds — the QR must always have a solid light background.

Adding a Logo

  • QR codes include built-in error correction. You can cover up to 30% of the center with a logo without breaking scanning.
  • Keep the logo centered and surrounded by white space.
  • Test after adding a logo — download the QR and scan it before printing.

Dynamic vs Static WiFi QR Codes

Standard WiFi QR codes are static — the WiFi credentials are baked into the QR code image. If you change your WiFi password, you need to regenerate and reprint the QR code.

ScansTrack offers dynamic QR codes where you can update the encoded WiFi credentials without reprinting. The QR code image stays the same, but the destination WiFi string changes. Ideal for businesses that rotate passwords monthly for security.

💡 Security recommendation For guest WiFi, use a separate network (VLAN or guest band) isolated from your main network. This lets guests connect easily while keeping your private devices and data secure. Most modern routers support this natively.

Frequently Asked Questions

Is a WiFi QR code secure?

The QR code encodes your password in plain text — it's not encrypted. Anyone who scans it can read the password with a QR scanner app. Treat it like a written note containing your password. Use it for guest WiFi on a separate network, not your main private network.

Can I change the WiFi QR code if I change my password?

Static QR codes must be regenerated and reprinted if your password changes. Dynamic QR codes (available on ScansTrack) let you update the WiFi credentials without a new QR code image.

Does the WiFi QR code work without an internet connection?

Yes — the QR code connects devices to your local WiFi network. Internet access depends on your router's internet connection, not the QR code itself.

What's the difference between WPA and WPA2?

WPA2 superseded WPA and is more secure. For the WiFi QR code format, both use T:WPA in the string — the device handles the distinction automatically during authentication. WPA3 networks also use T:WPA.

Why isn't my iPhone scanning the WiFi QR code?

Check: (1) You're using the Camera app, not a third-party app. (2) Settings → Camera → Scan QR Codes is enabled. (3) The QR code is large enough and well-lit. (4) The network credentials in the QR code are correct.