Professional QR Code Generator

Create high-resolution QR codes with custom logos and error correction.

Supports URLs, WiFi setups, contact details, or standard text strings.
Higher levels allow the QR to remain scannable when a logo is overlaid.

Enter details above and click generate.

Instructions & Operating Guidelines

Follow these simple steps to generate production-ready QR codes for print or digital media:

  1. Enter Destination Data: Paste a target URL, plaintext note, or contact string into the input area. Ensure web addresses include the complete protocol (e.g., https://).
  2. Select Error Correction Level: Choose an appropriate Reed-Solomon redundancy level. If you plan to embed a logo in the center, set the level to High (30%) to guarantee the matrix remains readable around the icon.
  3. Attach Brand Icon: Select a PNG, JPEG, or SVG image from your local drive. The tool automatically scales and centers the image over the matrix.
  4. Render Code: Click Generate Custom QR Code to compose the matrix onto an HTML5 canvas.

How It Works Under the Hood

Quick Response (QR) codes are two-dimensional barcode symbols that store binary data structured across a grid of black and white square modules. When data is submitted, it is encoded into a structured binary string wrapped with Reed-Solomon error correction codes. These mathematical algorithms add redundancy bytes that enable scanner hardware—such as smartphone cameras—to restore missing or obstructed data modules without corruption.

When adding a central logo overlay, the icon obscures a portion of the central matrix modules. By selecting a High Error Correction setting (30% redundancy capability), the code maintains enough valid data paths around the border and corners for the scanner to accurately resolve the encoded data string despite the central overlay.