PXLTools

QR Code Generator

Custom colors and logo placement

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Optional logo
IMAGE · up to 2.0 MB
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How to use QR Code Generator

  1. Choose the content type — URL, text, email, phone, SMS, Wi-Fi credentials, or contact card.
  2. Fill in the fields for your chosen type.
  3. Customize the colors and error correction level.
  4. Optionally add a logo below the QR (never on top — keeps the code scannable).
  5. Download as PNG or SVG.

QR code design principles

A QR code is a 2D barcode made up of a fixed pattern of dark and light squares. Scanners recognize the three corner markers, align the grid, then decode the data. Anything that obstructs the matrix — a logo, a sticker, a scratch — reduces scan reliability.

Many QR generators overlay a logo in the center of the code, relying on error correction to mask the obstruction. This often works, but it is fragile: scan reliability drops with smaller codes, damaged prints, or low-quality phone cameras. Placing the logo below the QR is always safer.

For contrast, keep the foreground dark and the background light. Inverted (light QR on dark background) often fails to scan on older devices because scanners expect dark-on-light. Test your QR with multiple phones before printing in bulk.

Frequently Asked Questions

Will the QR code scan reliably?
Yes. The generated QR matrix is never obstructed by logos or decorations — any custom logo is placed below the code, not on top. Every generated QR is verified by decoding it locally before download.
What content types are supported?
URL, plain text, email (mailto:), phone number (tel:), SMS, Wi-Fi credentials, and vCard contact info. Each has its own form for clean input.
How large should I print a QR code?
The general rule is a 10:1 ratio — if scanning from 1 meter away, the QR should be at least 10 cm wide. For posters viewed from 2-3 meters, use 20-30 cm. Higher error-correction levels also help with larger or damaged codes.
What is the error correction level?
QR codes include redundancy so they work even when partially damaged. L = 7% recovery (smallest code), M = 15%, Q = 25%, H = 30% (largest code). Use higher levels for signs or printed materials that might get scuffed.