QR Code Generator二维码生成

Turn text or a URL into a downloadable QR code.

把文本或网址生成可下载的二维码 PNG，适合分享链接与名片。

What is QR Code Generator?二维码生成 是什么？

A QR code generator turns any text or URL into a scannable QR image you can download as a PNG. It works entirely in your browser, so the content you encode — a private link, a Wi-Fi password, a contact card — is never sent to a server. You control the size and error-correction level for print or screen use.

二维码生成器把任意文本或 URL 变成可扫描的二维码图片，可下载 PNG。它完全在浏览器内运行，你编码的内容——私密链接、Wi-Fi 密码、名片——不会发送到服务器。尺寸和容错级别可调，适合印刷或屏幕使用。

How to use qr code generator如何使用 二维码生成

1. Enter the text or URL you want to encode.
2. Set the size and, if you like, the error-correction level.
3. Watch the preview update instantly — no generation button needed.
4. Download the PNG. The image is produced locally, so the encoded content stays private.

1. 输入要编码的文本或 URL。
2. 设置尺寸，需要时设置容错级别。
3. 预览即时更新，无需点击生成。
4. 下载 PNG。图片在本地 canvas 绘制，编码内容保持私密。

Common uses常见用途

• Share a link, a Wi-Fi password or a contact card without typing it out
• Add a QR code to a poster, a slide, a product label or a packaging design
• Create a payment or donation code for a printed menu or a receipt
• Generate a code for a presentation or a name badge in seconds

• 分享链接、Wi-Fi 密码、名片而无需手动输入
• 给海报、幻灯片、产品标签、包装设计加二维码
• 为印刷菜单、收据制作付款或捐赠码
• 几秒钟为演示文稿或姓名牌生成二维码

FAQ常见问题