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WiFi QR Code Generator

Everyday

Generate a QR code for your WiFi network. Guests scan it to connect instantly — no password typing needed. Free and password never leaves your device.

Reviewed by the thecalcu.com team · Last updated July 30, 2026

Enter your network name to generate the WiFi QR code

What is a WiFi QR Code?

A WiFi QR Code Generator creates a scannable QR code that encodes your wireless network name (SSID) and password in a format that iOS and Android camera apps recognise automatically. Instead of reading out a WiFi password character by character, guests point their phone camera at the code and tap once to join, no typing required.

The WiFi QR code format (WIFI:T:{security};S:{ssid};P:{password};;) is supported natively by Apple's Camera app on iOS 11 and later (released 2017) and by Android 10 and later, as well as Google Lens on earlier Android versions. When a compatible device scans the code, it shows a system prompt: "Join [Network Name]?", one tap connects without ever revealing the password to the guest.

This generator builds the correctly escaped WiFi format string from your inputs, renders it as a QR code using the same library as the QR Code Generator, and gives you a downloadable PNG. All processing happens in your browser, the password is never transmitted, stored, or logged anywhere.

Common physical uses: laminated cards on café and restaurant tables (replacing the hand-written password note), printed cards at Airbnb properties and short-term rentals, reception desk displays at coworking spaces, and printed inserts in new employee welcome kits. Digital uses: image shared in a building-wide Slack channel or WhatsApp group when IT changes the office WiFi password.

Why Use a WiFi QR Code Generator?

A printed or displayed WiFi password is one of the most frequently misread pieces of information in everyday life, lowercase l versus numeral 1, uppercase O versus zero, character order in long passwords with mixed case and symbols. A QR code eliminates all of this: the code either scans and connects, or it does not. There is no ambiguity, no mistyping, and no repeated interruptions ("sorry, can you repeat the WiFi password?").

For businesses, replacing a visible printed password with a QR code also improves security, the QR code conveys the credentials without displaying them as readable text on a notice board visible to everyone who walks past.

Who Should Use This Generator?

Café, restaurant, and hotel owners replacing the sticky note on the counter with a professional laminated card that guests scan rather than type.

Airbnb hosts and short-term rental operators who include a welcome card in the property, the QR code lets guests connect immediately on arrival without hunting for the router label.

IT administrators creating a guest network joining card for reception areas or conference rooms, keeping the main network credentials separate.

Home users who regularly have guests and want a quick, shareable image to send via WhatsApp instead of reading out a complex password.

Event organisers setting up a temporary event WiFi and wanting to provide quick access without staff having to recite passwords all day. Pair with the QR Code Generator for other event materials.

What Insights Does the WiFi QR Code Generator Give You?

The preview beneath the inputs shows the live QR code as you type, any changes to the network name, password, security type, or hidden-network setting regenerate the code immediately. The caption below the preview confirms which network name the code will connect to, giving you a final visual check before downloading.

If the network name is empty, no code is generated, the tool requires at minimum a network name to produce a valid WiFi QR string.

How to use this WiFi QR Code calculator

  1. Enter your Network Name (SSID), type the WiFi network name exactly as it appears in your router's settings (case-sensitive).
  2. Choose the Security Type, select WPA/WPA2/WPA3 for all modern routers. Select WEP only for older hardware. Select "No password" for completely open networks.
  3. Enter your WiFi password, use the Show/Hide toggle to verify you have typed it correctly. Special characters (semicolons, backslashes, quotes) are escaped automatically.
  4. Check "Hidden network" only if your router does not broadcast its SSID, leave unchecked for standard routers.
  5. Scan the preview with your phone before distributing, confirm it connects to the correct network.
  6. Click Download PNG and use the image in your printed materials or share it digitally.

Formula & Methodology

The WiFi QR code uses the WIFI: scheme, an industry convention (not an official ISO standard but universally supported by modern mobile OS cameras):

Format string:
WIFI:T:{security};S:{ssid};P:{password};H:{hidden};;

Variable definitions:
- {security}, WPA, WEP, or nopass
- {ssid}, the network name, with \, ;, ,, ", : escaped with a backslash
- {password}, the WiFi password, with the same characters escaped
- {hidden}, true if the SSID is hidden, omitted otherwise
- The double ;; terminates the string

**Escaping rule:** Any occurrence of \, ;, ,, ", or : in the SSID or password is prefixed with \.

**Example:**
- Network: HomeNet_5G, Password: myP@ss;word!, Security: WPA
- Escaped password: myP@ss\;word!
- Final string: WIFI:T:WPA;S:HomeNet_5G;P:myP@ss\;word!;;
- The QR code encodes this string at error correction level M (15% recovery), 256×256 pixels

Frequently Asked Questions

A WiFi QR code encodes network credentials, SSID (network name), password, and security type, in a standardised format that iOS and Android camera apps recognise automatically. When a guest scans the code, the phone prompts them to join the network with a single tap, without having to type the password. The format used is `WIFI:T:{security};S:{ssid};P:{password};;`, a convention supported by Apple (iOS 11+), Android (Android 10+ natively, earlier versions via Google Lens).
The QR code encodes your WiFi password in a format readable by any QR scanner. This is the same level of security as writing your password on a card, convenient for trusted guests, risky if the code ends up photographed or shared beyond your control. For home networks shared with known visitors, it is perfectly reasonable. For business networks with sensitive data, consider creating a separate guest network (with internet-only access) and generating a QR code for that, rather than exposing the main network. The QR code generation in this tool happens entirely in your browser, the password is never transmitted to any server.
This generator supports WPA/WPA2/WPA3 (the standard for all modern routers, including home routers sold in India since 2010), WEP (an older, deprecated protocol still occasionally found in older hardware, note that WEP is cryptographically weak and should be upgraded), and open (no password). Select the type that matches your router's security setting, which you can find in your router's admin panel (typically at 192.168.1.1 or 192.168.0.1). WPA is the correct choice for nearly all modern networks.
A hidden SSID is a network whose name is not broadcast in the router's beacon frames. Normally, your phone's WiFi scanner lists every visible network, a hidden network does not appear in that list unless you know its exact name. Enabling this option adds `H:true` to the encoded WiFi string, which tells the phone to connect to a non-broadcasting network. Only check this option if your router is actually configured for hidden SSID, if you check it but the router broadcasts normally, the connection attempt may fail or take longer.
On iOS 11 and later, the native Camera app automatically detects WiFi QR codes and shows a banner: 'Join network [SSID], Tap to Connect'. On Android 10 and later, Google's Camera app and many vendor camera apps do the same. On Android 9 and earlier, the user needs to open Android Settings → Network & Internet → WiFi → Add network and use the QR scan option there, or use Google Lens. The decoding happens on-device, no internet connection is required to scan and join.
Once downloaded, the QR code is a standard PNG image you can share via WhatsApp, email, or any messaging app. Recipients can screenshot the image and scan it from their camera roll (both iOS Camera and Google Lens can scan QR codes from existing photos, not just live camera view). For physical sharing, printing and laminating a card for your reception desk, dining table, or coworking space, the 256×256 PNG prints crisply at up to 5 cm × 5 cm at 300 dpi.
Yes, the WiFi QR code format is frequency-agnostic. It encodes the network name and password, and the phone's network stack handles the frequency selection automatically based on band steering or which bands it supports. If your router has separate SSIDs for 2.4 GHz and 5 GHz (e.g. 'HomeNetwork' and 'HomeNetwork_5G'), generate one QR code per SSID if you want guests to connect to a specific band. Modern routers with band steering typically use a single SSID and handle frequency selection transparently.
Check these in order: (1) Ensure the SSID and password are entered exactly as configured on the router, SSIDs are case-sensitive. (2) Confirm the security type matches, if your router uses WPA2 select WPA, if it uses WEP select WEP. (3) If your network is hidden, make sure you have checked the 'Hidden network' option. (4) If the SSID or password contains special characters (semicolon, colon, backslash, double quotes), the generator escapes them automatically, verify the router credentials and re-generate. (5) Try scanning with Google Lens if the native camera app does not recognise the code.
No, the WiFi QR code format (WIFI:) supports PSK (Pre-Shared Key) authentication (WPA-Personal, WEP) and open networks, but not 802.1X/EAP enterprise authentication, which requires individual username/password pairs or certificates. Corporate networks that use Active Directory or RADIUS authentication cannot be shared via this format. For those networks, users must connect manually or IT must provision the device via an MDM profile.
The WiFi QR format uses semicolons (;), colons (:), backslashes (\), and double quotes (") as delimiters and escape characters. If your SSID or password contains any of these, they must be escaped with a backslash, e.g. a password of `pass;word` becomes `pass\;word` in the encoded string. This generator handles escaping automatically when you enter your credentials, so you can type your actual password without worrying about special character handling.
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