Let guests connect to your WiFi network instantly — no typing passwords. Commonly used in cafes, hotels, offices, and coworking spaces.
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How a WiFi QR code works
A WiFi QR code encodes the same three things you'd normally hand a guest: the network name (SSID), the encryption type (WPA, WPA2, WPA3, or open), and the password. When someone scans the code with their phone camera, the device recognizes the WiFi payload and prompts them to join — no typing, no spelling out the password, no captive portal hop.
Both iOS (11+) and Android (10+) handle WiFi QR codes natively. Older devices may need a QR-aware scanner app, but the format is universal and the data is encoded into the image itself — so it works completely offline. The code doesn't need an internet connection to read; the phone just sees "join this WPA2 network with this SSID and this password."
When to use a WiFi QR code
WiFi QR codes are the easiest way to share your network with anyone who has a phone camera. Print one on a card and leave it on the counter; tape it to the office wall; stick it on a hotel room mirror. The patterns below cover most real-world deployments.
- →Cafes, restaurants, and bars — a counter card lets every customer connect without staff handing out passwords.
- →Coworking spaces and offices — pin one near the entrance for visitors; rotate it each quarter if you cycle the password.
- →Hotels and short-term rentals — print on the welcome card so guests don't have to call the front desk.
- →Conferences and meetups — display one on the projector during the welcome session.
- →Home guest networks — keep on the fridge so visiting family can join in seconds.
Need to update this later?
Static WiFi codes bake the password right into the image. If you rotate your guest network password — quarterly, seasonally, or after an event — every printed code dies the moment you change it. A dynamic QR code redirects to a small page that displays the current credentials; update the page once and every printed code stays valid. You also get scan analytics so you can see when and where people are actually joining.
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FAQ
Frequently asked questions
Does a WiFi QR code work on iPhone and Android?
Yes. iOS 11+ and Android 10+ both read WiFi QR codes natively from the camera app — the user is prompted to join the network with one tap. Older phones may need a QR-aware scanner app, but the format is the universal
WIFI: payload spec, so any modern scanner works.What encryption types are supported?
WPA, WPA2, WPA3, WEP, and open (no password) networks are all supported. Build QR encodes the encryption type into the QR so the scanner knows exactly how to connect. WPA2 is the most common choice for guest networks today.
Is my WiFi password visible in the QR code?
The password is encoded into the visual pattern of the QR code itself. Anyone who scans the code can join the network — that's the entire point. The image doesn't show the password as readable text, but a QR-reader app will reveal it. Treat a WiFi QR with the same care you'd give a printed password card.
Can I add my logo to the WiFi QR code?
Yes. Upload any PNG, JPEG, or SVG and it'll be placed in the center. The error correction level is set high enough that a centered logo doesn't interfere with scan reliability. You can also customize the dot color, background color, and corner style to match your brand or venue.
How big should I print the WiFi QR code?
For close-range scanning (counter cards, table tents), at least 2 cm × 2 cm. For wall posters scanned from a couple of meters away, scale up — a useful rule is 1 cm of QR width per 10 cm of scanning distance. Always test the printed code with both iOS and Android phones before committing to a print run.
Does the WiFi QR code work on a hidden SSID?
Yes. Mark the network as hidden in the generator above and the QR will instruct the scanning phone to attempt connection even though the SSID isn't broadcasting. The phone joins the hidden network the same way it'd join a visible one.
What happens if I change the WiFi password?
A static WiFi QR code bakes the password into the image — once printed, it can't be changed. If you rotate passwords, use a dynamic QR code: the printed code points to a small page that shows the current credentials, and you update the page from your dashboard. The printed code stays valid; only the destination updates.
Is this WiFi QR code generator really free?
Yes. Generate, customize, and download as many static WiFi QR codes as you want — completely free. No account, no watermark, no scan limits. Dynamic WiFi QR codes (with editable credentials and scan analytics) come with a free Build QR account.
Need to update the link later?
Static codes bake in the destination forever. Dynamic QR codes let you change where the code points without reprinting. Start free with one dynamic QR included.
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