⬛ QR Code Generator
Generate QR codes for URLs, WiFi, text, email, and phone. Download as PNG up to 512×512px. Free QR code maker — no signup, runs entirely in your browser.
Enter content above and click Generate
How to Use
1
Choose a type
Select URL, Text, WiFi, Email, or Phone from the type tabs at the top.
2
Enter your content
Fill in the input fields for your chosen QR type. All fields update the preview live.
3
Download your QR code
Click Generate QR Code, then Download PNG to save the QR code to your device.
Frequently Asked Questions
What is a QR code?
A QR code (Quick Response code) is a 2D barcode that smartphones can scan to instantly open a URL, connect to WiFi, add a contact, or perform other actions without typing.
What types of QR codes can I generate?
URL (website links), plain Text, WiFi credentials (SSID, password, encryption), Email addresses, and Phone numbers. Each type creates a properly formatted QR payload.
Are the QR codes stored on a server?
No — QR codes are generated entirely in your browser using the qrcode.js library. Nothing is uploaded or saved.
How do I download my QR code?
Click the Download PNG button after generating your QR code. The image is saved directly to your device at the selected size (128×128 to 512×512 pixels).
What is error correction level?
QR codes have built-in error correction. Level L (7%) works for clean digital displays. Level H (30%) allows the QR code to remain scannable even if up to 30% is obscured or damaged — useful for printed materials.
完整指南：二维码生成器
什么是二维码？
二维码可编码多达4,296个字母数字字符，智能手机摄像头可即时读取。非常适合分享URL、联系方式（vCard）、WiFi凭证等，无需手动输入。
内置纠错功能——"H"级别可恢复多达30%的损坏数据，适合印刷使用。
如何使用
- 选择内容类型：URL、文本、WiFi、vCard或电子邮件。
- 输入数据到相应字段。
- 二维码即时生成。
- 下载PNG或SVG用于数字或印刷。
专业技巧
- 印刷时使用"H"纠错级别，最小尺寸2×2厘米。
- 短URL生成更简单的二维码，更易扫描。
- 大量印刷前至少用两部手机测试。