QR Codes 101: What They Are and How to Use Them

QR codes are square barcodes that smartphones can scan to open a link, show text, or launch an action. Invented for industrial tracking, they are now common on menus, packaging, business cards, posters, and event tickets—anywhere you want a fast path from print to digital.

A QR code encodes data as a pattern of black and white modules. When you scan it with a camera app, the phone decodes that pattern and opens the URL or content. Because they hold more data than traditional barcodes, they work well for long website addresses and simple text payloads.

Keep codes clear and high-contrast: dark modules on a light background, enough quiet space around the edges, and a size large enough to scan from the distance you expect. Test on a few phones before printing. If the destination page changes often, prefer a stable short URL you can update later.

You do not need special software to make a basic code. Paste a URL or short message into a generator, download the PNG, and place it in your design. Avoid over-decorating the code so scanners can still read it reliably.

Create a free QR code in seconds with the QR Code Generator on EverydayKit—everything runs in your browser, no account needed.