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About
Generate QR codes for text, vCard and Wi‑Fi. Customize colors, size, margins and center logo. All rendering happens locally in the browser.
Use Cases
- Share URLs or text
- Create contact QR as vCard
- Post Wi‑Fi QR for easy connection
- Add logo for branding
How It Works
- Use uqr to generate matrix (ECC H)
- Compute module size and draw via Canvas
- Place centered logo with circular background
- Export PNG via canvas.toDataURL
FAQ
How do I print or share the QR?
Click 'Download PNG' and use the image for printing or sharing.
Will a logo affect scanning?
Using ECC H with a buffered background usually works; avoid oversized logos.
Which Wi‑Fi encryption should I choose?
Most routers use WPA/WPA2; choose 'No password' for open networks.
Is my data uploaded?
No. All rendering is done locally in your browser; nothing is uploaded.