A2Z Edit
A2Z Edit

QR codes guide

What is a QR code?

Updated 2026-08-25

A QR code is a square barcode that stores data such as a URL or short text.

On A2Z Edit you can generate new codes or scan existing ones from images or your camera.

Do this on A2Z Edit

Open the QR Code Tools and follow the steps below.

Open QR Code Tools

Steps

  1. Decide whether you need to create or scan.
  2. Use QR Code Generator to encode your content.
  3. Use QR Scanner to read a code from an image.
  4. Test every new code before you print it widely.
  5. Update the destination page if you used a URL you control.

Why it matters

Understanding the basics prevents unreadable prints and surprise links.

Tips

  • Quiet space around the code (a quiet zone) improves scanning.
  • Do not stretch QR images into rectangles.
  • Explore the QR tools hub to jump between generate and scan.

Frequently asked questions

QR vs barcode?

QR codes store more data in 2D patterns; classic barcodes are usually 1D.

Do I need an app?

Most phones scan URLs in the camera app; A2Z Edit helps generate and decode in the browser.

Safe to scan any code?

Only open links you trust—codes can point anywhere.

Related tools

QR Code ToolsPrimary tool for this guideQR Code GeneratorRelated toolQR Code ScannerRelated tool

Related guides

When to use QR codesGood use cases for QR codes—and when a plain link is enough.How to create a QR codeGenerate a QR code for text, links, and more with A2Z Edit.How to download a QR code imageGenerate a QR code and save a crisp image for print or web.How to make a QR Code for a URLEncode a website link into a QR code people can open on their phones.

More how-tos: Guides