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Online Wi-Fi QR Code Generator

Pick a payload type, preview live, one-click PNG / SVG download.

文本
网址
电话
短信
邮件
Wi-Fi
电子名片
日历事件
地理位置
SEPA 转账
外观设置

L 适合一般场景;H (30%) 适合可能被遮挡或低质量打印。

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编码内容(原始数据)

What is a Wi-Fi QR Code?

A Wi-Fi QR code encodes a string like WIFI:T:WPA;S:MyShop;P:password123;;; scanning pops the phone's “join network” confirm box. A hotel, café or office desk-card staple. T = security type, S = SSID, P = password, and the string must end with two semicolons.

Encoding structure and tips

  • T is WPA/WPA2, WEP or nopass (open network);
  • ; : , " in the SSID/password must be backslash-escaped — CodeBox handles it;
  • Non-ASCII passwords are UTF-8 encoded; some older devices choke on them — prefer ASCII;
  • Use M or higher error correction for printed cards.

How to generate a Wi-Fi QR code

  1. Fill in the SSID and password, pick the security type;
  2. Confirm the WIFI: string in the preview;
  3. Test-scan on a real phone to confirm the connection;
  4. Download PNG/SVG for table cards or the storefront.

Typical uses

  • Restaurant table cards, hotel lobbies;
  • Office guest networks;
  • Events and temporary hotspots.

FAQ

Is the online Wi-Fi QR generator free?

Completely free, no sign-up, unlimited use — everything runs locally in your browser.

How much content fits in one code?

A QR code holds up to ~4,296 half-width characters or 2,953 digits (level L). More content means denser modules — print larger.

Can I add a logo?

Yes. Center the logo, keep the quiet zone intact and set error correction to Q or H for reliable scans. CodeBox's transparent PNG export makes post-processing easy.

Is my data uploaded?

No. CodeBox is a fully client-side tool; your data never leaves your device.

Can I print it?

Yes. Single codes print directly; for bulk output use the batch QR generator for A4 sheets.

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