A QR code lets people scan a code with their phone camera to open a website, join a Wi-Fi network, save contact details, or view other information. You can generate one in minutes using a QR code generator, and the most important decision is choosing between a static QR code and a dynamic one.

Use QR codes where people can scan them easily: business cards, posters, menus, event materials, product packaging, and Wi-Fi signs.

Static vs. Dynamic QR Codes

Before generating a QR code, decide which type you need.

A static QR code is usually best for a website link, Wi-Fi network, or contact card that will not change. A dynamic QR code is useful when you may need to update the destination later or track scans.

Generate a QR Code for a Website

A website QR code sends people directly to a page when they scan it.

1. Choose a QR code generator.
2. Select URL or Website as the QR code type.
3. Paste the full website address, including https://.
4. Test the link before generating the final code.
5. Choose the size, colors, and error-correction level if these options are available.
6. Download the QR code as PNG for digital use or SVG/EPS for printing.
7. Scan the final code with a phone to confirm it opens the correct page.

Use the full destination URL. For example:

https://www.example.com/menu

Avoid linking to a page that is likely to change or expire. If the page may move, use a stable redirect link or a dynamic QR code.

Best practices for website QR codes

• Link directly to the relevant page, not necessarily the homepage.
• Use a mobile-friendly landing page.
• Add a short call to action, such as “Scan to view the menu.”
• Test the code on both iPhone and Android.
• Keep enough blank space around the code so it scans easily.
• Do not place the code on a glossy, curved, or highly reflective surface if possible.

Generate a QR Code for Wi-Fi Access

A Wi-Fi QR code lets guests join your network without typing the network name or password.

1. Open a QR code generator.
2. Select Wi-Fi as the QR code type.
3. Enter the network name, also called the SSID.
4. Choose the security type:
   • WPA/WPA2/WPA3 for most modern password-protected networks
   • None for an open network
5. Enter the Wi-Fi password exactly, including capital letters, symbols, and spaces.
6. Select whether the network is hidden, if applicable.
7. Generate and download the QR code.
8. Test it by scanning with a phone that is not already connected to the network.

A typical Wi-Fi QR code contains information in this structure:

WIFI:T:WPA;S:NetworkName;P:Password;;

You normally do not need to create this manually—use the generator’s Wi-Fi option.

Wi-Fi QR code tips

• Double-check the password before printing.
• Use a guest network for visitors when possible.
• Do not display a QR code for your main private network in a public place.
• Place the code at eye level or on a table tent where it is easy to scan.
• Include the network name beside the code in case someone needs to connect manually.

If you change your Wi-Fi password, the printed QR code will no longer work. Keep the original design file so you can regenerate and reprint it.

Generate a QR Code for Contact Details

A contact QR code, often called a vCard QR code, lets someone save your details to their phone contacts.

1. Choose a QR code generator.
2. Select vCard, Contact, or Business Card.
3. Enter the details you want to share:
   • Name
   • Job title and company
   • Phone number
   • Email address
   • Website
   • Address, if needed
4. Avoid adding information you do not want to share publicly.
5. Generate the QR code.
6. Scan it with your own phone and confirm the contact details save correctly.
7. Download the code for your business card, email signature, or printed material.

A vCard QR code is useful for networking events, storefronts, and professional printed materials. Keep the information minimal—only include what a new contact genuinely needs.

Choose the Right File Format

The best download format depends on where you will use the QR code.

For print, use a vector format such as SVG or EPS when available. Vector files scale without becoming blurry. If you only have PNG, export it at a high resolution.

Make QR Codes Easy to Scan

A QR code can contain the right information but still fail if it is difficult to scan.

Follow these guidelines:

• Keep the QR code large enough for the scanning distance.
• Maintain a clear quiet zone—the blank margin around the code.
• Use strong contrast, such as dark code on a light background.
• Avoid placing text or logos over essential parts of the code.
• Test the final printed version, not just the on-screen version.
• Avoid printing across folds, seams, curves, or textured surfaces.
• Do not make the code too small on posters or packaging.

As a practical rule, the farther away someone will scan from, the larger the QR code needs to be. A code on a business card can be small; a code on a wall sign should be much larger.

Test Before Publishing

Always test the final QR code before printing or sharing it.

1. Scan it with an iPhone.
2. Scan it with an Android phone.
3. Try scanning from different distances and angles.
4. Check that it opens the correct page, joins the correct Wi-Fi network, or saves the correct contact.
5. Test the printed version under normal lighting.
6. Ask someone else to scan it if possible.

Testing is especially important for Wi-Fi codes, because one incorrect character in the password will prevent the code from working.

Security Considerations

QR codes can be used in phishing attacks because people cannot always see where they lead before scanning.

Protect yourself and your audience:

• Use a QR code generator from a reputable provider.
• Check the destination URL before generating the code.
• Avoid scanning QR codes from unsolicited emails, flyers, or messages.
• Be cautious with codes that lead to login pages or payment requests.
• Use a dynamic QR code provider you trust, since the destination may be controlled by that service.
• For public Wi-Fi, use a guest network rather than exposing your main network password.

If you are displaying a QR code for customers, make the destination clear with text such as “Scan to view our menu” or “Scan to connect to guest Wi-Fi.”

Quick Reference

Choose a static QR code for stable information, test it on real devices before printing, and keep the design simple and high-contrast. For Wi-Fi, use a guest network and verify the password carefully; for contact codes, share only the details you are comfortable making public.