Free QR Code Generator Online – Create QR Codes for URL, WiFi, UPI, vCard
By RapidTool Team · Last updated: September 2026
Generate QR codes for URLs, WiFi passwords, UPI payment IDs, vCards, phone numbers, SMS messages, and plain text online for free. Choose QR code size from 128×128 to 1024×1024 pixels. Customise dark and light colors. Download as PNG instantly.
Frequently Asked Questions
How do I create a QR code for WiFi so guests can connect easily?
Select the WiFi tab, enter your network name (SSID) and password, then click Generate. Anyone who scans this QR code with their phone camera will be prompted to join the network automatically without typing the password.
How do I create a UPI payment QR code?
Select the UPI tab, enter your UPI ID (like yourname@upi or yourphone@paytm), optionally enter a fixed amount, and generate. Anyone scanning this QR code with PhonePe, GPay, or Paytm will go directly to a payment screen with your UPI ID pre-filled.
What error correction level should I choose?
L (Low) is for clean environments. M (Medium) is the default for most uses. H (High) can recover from up to 30% of the QR code being damaged — use H for physical items that may get worn or dirty, or when you want to overlay a logo on the QR code.
What is the best size for a QR code for printing?
For printed materials, use at least 512×512 pixels (2cm minimum print size at 300 DPI). For billboards, use 1024×1024. The QR code should be at least 1/10th the size of the scanning distance.
Can I add a logo to the center of a QR code?
The generated QR PNG can be edited in any image editor to overlay a logo. Use High (H) error correction which tolerates up to 30% of the QR being covered. Ensure the logo doesn't cover the three corner squares.