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二维码生成器

把链接、文字、Wi-Fi 生成二维码,浏览器本地生成,可下载 PNG。

数据在浏览器本地编码,不上传任何内容;Wi-Fi 二维码扫码后可直接连接。

工具介绍 · About this tool

中文介绍

二维码在旅行中随处可见:扫码点单、扫码支付、扫二维码加微信、连酒店 Wi-Fi。这个工具把链接、文字或 Wi-Fi 信息生成二维码,全部在浏览器本地完成,不上传内容,可下载 PNG。

Wi-Fi 二维码尤其实用:把 SSID 和密码编成二维码打印出来,客人扫码即可连网,不用再口述密码。

常见问题

Wi-Fi 二维码是怎么工作的?

它用标准格式 WIFI:T:加密;S:名称;P:密码;; 编码,手机相机或微信扫码后自动识别并引导连接。

生成的内容会上传服务器吗?

不会。编码在浏览器本地完成,全程不联网。

二维码能存多少内容?

普通二维码最多约 2000–3000 字符,链接、Wi-Fi、短文本都足够;内容越长二维码越密。

English

QR codes are everywhere when traveling: scan to order, scan to pay, scan to add WeChat, or join hotel Wi-Fi. This tool turns a link, text or Wi-Fi network into a QR code, entirely in your browser — nothing is uploaded — and you can download it as PNG.

The Wi-Fi QR is especially handy: encode the SSID and password, print it, and guests scan to join without dictating the password.

FAQ

How does a Wi-Fi QR code work?

It encodes the standard format WIFI:T:enc;S:name;P:pass;; — phone cameras or WeChat scan it and prompt to connect.

Is my content uploaded?

No. Encoding happens locally in your browser, fully offline.

How much can a QR code hold?

Roughly 2000–3000 characters. Links, Wi-Fi and short text fit easily; longer content makes a denser code.