Question 1

What types of QR codes can I create?

Accepted Answer

QTool.io's QR Code Generator supports URLs, plain text, email addresses (with optional subject and body), phone numbers, WiFi network credentials (SSID, password, encryption type), and vCards with name, phone, email, organization, and website.

Question 2

Can I customize the colors of my QR code?

Accepted Answer

Yes, you can fully customize both the foreground and background colors of your QR code using color pickers. You can also adjust the size from 128px to 512px and choose from four error correction levels (L, M, Q, H).

Question 3

Is this QR code generator free?

Accepted Answer

Yes, QTool.io's QR Code Generator is completely free with no signup, no watermarks, and no limits. The QR codes are generated entirely in your browser using a pure JavaScript encoder — no server calls needed.

Question 4

What is QR code error correction?

Accepted Answer

Error correction allows a QR code to remain scannable even if part of it is damaged or obscured. QTool.io offers four levels: L (7% recovery), M (15%), Q (25%), and H (30%). Higher levels make the QR code more resilient but slightly larger.

QR Code Generator

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