How to Create a QR Code: A Simple Guide for Beginners and Businesses

QR codes are everywhere: on menus, posters, parcels and certificates. Fortunately, you do not need any technical skill to make one. This guide explains how to create a QR code, which type to choose and how to make sure it scans first time.

How to create a QR code in four steps

1. First, decide what the code should open, such as a web page.
2. Next, paste that address into a QR code generator.
3. Then choose the size and error-correction level, and download PNG or SVG.
4. Finally, test the code with your phone camera before you print it.

Static vs dynamic QR codes

A static QR code stores the link directly, so it works forever and needs no account. However, you cannot change where it points after printing. A dynamic QR code points to a short link that you can redirect later, but it depends on the provider staying online.

	Static QR code	Dynamic QR code
Can change destination	No	Yes
Needs an account	No	Usually
Works if provider closes	Yes	No
Best for	Fixed links, documents	Campaigns, menus

QR code size and design tips

• Print the code at least 2 cm square; 2.5–3 cm is safer for paper.
• Use dark modules on a light background for strong contrast.
• Keep a clear border (the “quiet zone”) around the code.
• Avoid placing it over photos or gradients.
• Prefer SVG for print, because it stays sharp at any size.

How businesses create a QR code for each document

Sometimes one code is not enough. For example, a training provider needs a different code on every certificate, so each one opens its own record. Creating those by hand would take hours. Instead, a certificate system such as CertiQR creates a QR code for every certificate automatically and links it to a verification page on your own domain.

Is it safe to scan a QR code?

A QR code is only a link, so it is as safe as the page it opens. Therefore, check the address your phone shows before you tap it. For businesses, hosting the destination on your own domain builds trust, because people can see who is behind the link.

Testing your QR code

Always scan the printed code with two different phones, including an older one. In addition, try it in normal room light and at arm’s length. If it struggles, make it larger or increase the contrast.

Where to use a QR code

Once you know how to create a QR code, you will see uses everywhere. For example, restaurants link to menus, shops link to product pages and events link to tickets. Similarly, schools and training providers put a QR code on certificates, so anyone can confirm the certificate is genuine.

• Business cards that open your contact details.
• Posters that open an event page or sign-up form.
• Packaging that opens instructions or a warranty page.
• Certificates that open a verification record.
• Invoices that open a payment page.

How to create a QR code that looks on-brand

You can add colour and even a small logo, as long as contrast stays strong. Keep the modules dark and the background light, and never invert them. In addition, raise the error-correction level to “M” or “Q” if you place a logo in the middle, because the logo hides part of the pattern. Then test again, since every change affects scanning.

Error correction explained simply

QR codes contain extra data that lets phones read them even when part of the code is damaged. There are four levels: L, M, Q and H. Higher levels survive more damage but make the code denser. For most printed documents, level M is a good balance between reliability and size.

Level	Recovers about	Good for
L	7%	Screens, clean prints
M	15%	Most printed documents
Q	25%	Codes with a small logo
H	30%	Harsh conditions

How to create a QR code for many items at once

Making codes one at a time works for a poster. However, it does not work for 500 certificates or 1,000 products. In that case, use a system that generates codes in bulk from a spreadsheet. For certificates, CertiQR creates a unique QR code for each holder automatically, so you never handle the codes yourself.

Common QR code mistakes

The most common mistake is printing too small. Another is linking to a page that later disappears, which breaks every printed copy. Finally, some people place codes on curved or shiny surfaces that reflect light. So check size, permanence and placement before you print in quantity.

In addition, the W3C Verifiable Credentials Data Model is a useful, independent reference if you want to read further.

Frequently asked questions