Why use a Wi-Fi QR
The usual pain with guest Wi-Fi is typos, case sensitivity, and reading a long password from a sticky note. A Wi-Fi QR passes SSID, password, and encryption to the phone in one scan—less counter time and fewer support questions.
urlu builds Wi-Fi QR codes in the browser with no app install, exporting PNG or SVG. The same settings can be recreated through the REST API, which helps when you run different SSIDs per floor, venue, or pop-up.
Steps in the web UI
On the home page, open the QR Code tab and follow this order.
- Choose Wi-Fi as the content type.
- Enter the SSID exactly as broadcast—including spaces, non-Latin characters, or symbols.
- Pick encryption. Most routers use WPA/WPA2/WPA3 (choose WPA). WEP is for legacy hardware only.
- Enter the password. For open networks, set encryption to none.
- Check the preview, then download PNG or SVG.
Printing and placement
For table tents, posters, or entrance stands, aim for at least ~3 cm (about 120 px) on the printed page. A size of 512 px from urlu is comfortable for print.
Error correction M (default) or H is recommended. Avoid placing a logo over the QR center—urlu outputs a clean pattern with higher scan rates.
Use dark modules on a light, matte background. Glossy lamination can glare and cause failures.
Generating via API
For scripts, call GET /api/qr with type=wifi plus ssid, password, and encryption. URL-encode special characters in ssid and password.
You can embed `<img src="/api/qr?type=wifi&ssid=…">` in HTML pages. To show several store QR codes on one share link, see the multi-QR page guide.