What security types are supported?

WiFi QR codes support WPA/WPA2 (most common), WEP (older, insecure), and open/no-password networks. WPA is recommended for all modern networks.

Is my WiFi password safe in a QR code?

Your password is encoded in plain text within the QR code, which anyone with a QR scanner can read. For security, use a dedicated guest network with a separate password, and place QR codes only in areas where you intend people to connect.

Does the WiFi QR code work on all phones?

Yes. Modern iOS (11+) and Android (10+) cameras natively decode WiFi QR codes and prompt the user to join. Older devices may need a third-party QR scanner app.

Do I need to update the QR code if I change my password?

Yes. Static WiFi QR codes encode the password at generation time. If you change your password, you need to generate a new QR code. Consider using dynamic QR codes that redirect to a password-update page instead.

WiFi QR Code Generator

Free WiFi QR Code Generator

Let guests join your WiFi network instantly by scanning a QR code. No more spelling out long passwords. Generate a WiFi QR code using our simple API — just encode your network details into the standard WiFi URI format.

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Example WiFi QR Code

API URL

https://api.online-qr.com/v1/make-qr?data=WIFI:T:WPA;S:MyNetwork;P:MyPassword;;

What is a WiFi QR Code?

A WiFi QR code encodes your wireless network credentials — SSID (network name), password, and security type — into a scannable QR code. When a phone camera scans it, the device is offered a prompt to join the network automatically. This eliminates the friction of sharing network credentials verbally or in writing, and is especially useful in hospitality, offices, events, and retail environments.

How to Create a WiFi QR Code

1
Format your WiFi data string: WIFI:T:WPA;S:YourNetworkName;P:YourPassword;; (replace fields with your actual SSID and password)
2
URL-encode the string and call: https://api.online-qr.com/v1/make-qr?data=WIFI%3AT%3AWPA%3BS%3AYourSSID%3BP%3AYourPassword%3B%3B
3
Download or embed the resulting QR code image — place it on a sign, table tent, or printed card near your router

Example API call

https://api.online-qr.com/v1/make-qr?data=WIFI%3AT%3AWPA%3BS%3AMyNetwork%3BP%3AMyPassword%3B%3B

Common Use Cases

Hotel rooms and lobbies providing guest WiFi access
Coffee shops and restaurants sharing network passwords with customers
Office reception areas for visitor internet access
Conference and event venues for attendee connectivity
Retail stores enabling customer browsing on guest networks
Home use for sharing guest WiFi without revealing the password verbally

Tips for Best Results

Use a separate guest network for your WiFi QR code to keep your main network secure
Laminate the printed QR code to protect it from spills in hospitality environments
Include the network name and password as text below the QR code as a fallback for older devices
For open (no password) networks, use WIFI:T:nopass;S:YourNetworkName;; as your data string

Frequently Asked Questions

Related QR Code Types

URL QR Code Generator

Create a QR code for any website URL in seconds. With Online-QR, just paste the URL into our API endpoint — no signup, no SDK, no software to install. Embed it anywhere as a simple image tag.

Text QR Code Generator

Encode any plain text into a scannable QR code — no URLs, no special formatting. Use it for messages, coupons, serial numbers, instructions, or any short-form content you want people to read by scanning.

SMS QR Code Generator

Create a QR code that opens a text message pre-addressed to your number — with optional pre-filled message text. Ideal for SMS opt-in campaigns, support lines, and any context where you want users to text you easily.

View all 11 QR code types

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Generate your first QR code in seconds with the Online-QR API. No signup required for static codes. Create a free account for dynamic codes with scan analytics.

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