QR Code Guide
QRQR PRO creates QR codes in your browser for links, plain text, WiFi access, contact cards, phone numbers, email, SMS, and social profiles. This guide explains how to choose the right payload and test the result before sharing it.
Choose the right QR content
Use a URL QR code for a website or campaign landing page. Use WiFi when guests need network access, a contact card when people should save your details, and email or SMS when the code should open a pre-filled message. Keep the destination short and make sure it is still available after printing.
Make the code easy to scan
Use strong contrast between the code and its background, leave a clear quiet zone around the edges, and avoid stretching the image. A logo can be useful for branding, but it should remain small enough that the corner patterns are still readable. Test the downloaded PNG, JPG, or SVG with more than one phone before publishing.
Print and screen recommendations
SVG is usually the best choice for signs and other printed material because it stays sharp when resized. PNG works well for documents and web pages. For a screen-based QR code, keep it large enough for the expected viewing distance and avoid placing it over animation or a busy image.
Privacy-first generation
QR generation runs locally in the browser. The value you enter is used to build the QR image on your device rather than uploaded to a QRQR PRO server. Do not share a QR code containing a password or private contact detail unless you intend the code to reveal it to anyone who scans it.
Match the format to the destination
Use SVG when the code will be resized for a sign, label, or other print project. Use PNG for documents and websites when you need a widely supported image. JPG can be convenient for general image workflows, but compression can soften edges, so scan the actual downloaded file after exporting it.
Test the real-world version
A preview on a bright monitor is not the same as a code printed on textured paper or displayed behind glass. Test the smallest expected size, the lighting where the code will be used, and the distance from which people will scan it. Check the destination on more than one phone and replace the file if the content changes.
Common mistakes to avoid
Do not remove the quiet zone around the code, cover the corner finder patterns with a logo, or use a low-contrast foreground and background. Avoid encoding a temporary URL, a session-specific link, or private information that should not be visible to anyone with a camera. A short, stable destination is easier to test and more likely to remain useful after publication.
Quick publishing checklist
- Open the destination and confirm the text, URL, phone number, or email address.
- Scan the final downloaded PNG, JPG, or SVG with at least two phones.
- Check contrast, quiet zone, logo size, and the smallest display or print size.
- Keep a copy of the approved file and replace it when the destination changes.
Always scan the final downloaded file, not only the preview. Confirm the destination, spelling, and permissions before distributing the code.
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