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二维码生成器
为任何文本或URL生成二维码
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ℹ️ 关于 Qr Generator
Create QR codes for URLs, text, WiFi networks, contacts, and more. Download in multiple formats (PNG, SVG) and customize colors. QR codes can be scanned by any smartphone camera.
💡 使用场景
Sharing website URLs and links
Creating WiFi network access codes
Making digital business cards (vCard)
Sharing contact information
Creating codes for marketing materials
📋 使用方法
1
Select the type of QR code to create
2
Enter the data (URL, text, WiFi info, etc.)
3
Customize colors if desired
4
Download the QR code as PNG or SVG
💎 Pro Tips
- Use SVG format for print materials - it scales without losing quality
- Test your QR code with multiple devices before printing
- Keep URLs short for smaller, more scannable QR codes
❓ Frequently Asked Questions
Static QR codes never expire. The code itself is just encoded data.
No, QR codes encode fixed data. Create a new code if the content changes.
About 3KB of data, or roughly 4,000 alphanumeric characters. Shorter is better for reliability.
Yes, modern phones can scan QR codes displayed on any screen.