二维码生成器
为URL、文本、Wi-Fi、名片等生成二维码 — 下载PNG或SVG
Free QR Code Generator
Generate QR codes instantly for URLs, text, email addresses, phone numbers, and more. Customize colors, size, and error correction level. Download your QR code as a high-quality PNG image — no sign-up required.
Features
- Generate QR codes for any text, URL, or data
- Customizable size from 128px to 512px
- Custom foreground and background colors
- Four error correction levels: Low (7%), Medium (15%), Quartile (25%), High (30%)
- Instant preview with real-time updates
- Download as PNG with one click
- 100% free — runs entirely in your browser
How to Use
Enter your content (URL, text, email, etc.) in the text field. Adjust the size slider, pick foreground/background colors, and select an error correction level. The QR code updates in real-time. Click "Download PNG" to save your QR code.
QR Code Generator — Free Online
Generate QR codes for URLs, plain text, email addresses, phone numbers, and more. Download as PNG or SVG. Customize size and error correction level.
FAQ
What is a QR code?
A QR (Quick Response) code is a 2D barcode that can be scanned by a smartphone camera to open a URL, text, contact, or other data instantly.
What is error correction level?
QR codes have built-in error correction so they can still be scanned even if partially damaged. Higher levels (L, M, Q, H) correct more damage but make the code denser.
What can I encode in a QR code?
URLs, plain text, email addresses (mailto:), phone numbers (tel:), SMS (smsto:), Wi-Fi credentials, vCard contacts, and calendar events (VEVENT).
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