What a QR code link is and why you'd make one

A QR code link is a square barcode that holds a web address inside it. When someone points their phone camera at it, the phone reads the code and opens the URL automatically — no typing required. You create one by feeding a URL into a QR code generator, which turns that link into a scannable image you can print, email, or post online.

The main reason to make one is convenience. A QR code on a poster, business card, or product package lets someone reach your website or landing page in one camera tap instead of typing a long URL by hand. They're also useful for tracking — some generators let you see how many people scanned your code and when.

Key Takeaways

  • You generate a QR code by pasting a URL into a free online generator like QR Code Generator, Unitag, or the built-in tools in Google Chrome or Microsoft Word.
  • The code itself is just an image file — a PNG or SVG — that you download and use anywhere: printed materials, emails, social media, or websites.
  • Static QR codes (pointing to one fixed URL) are free and permanent; dynamic codes (which you can change after creation) usually require a paid account.
  • Test your code on your phone before printing or sharing it to make sure it opens the right page.
  • The larger you print or display the code, the easier it is to scan from a distance.

Using a free online QR code generator

The fastest way is to use a web-based generator. Go to QR Code Generator (qr-code-generator.com), Unitag (unitag.io), or QR Server (qr-server.com). Paste your full URL into the text field — for example, https://www.yourwebsite.com/landing-page — and the generator creates the code instantly.

Download the image as a PNG file (the standard format) or SVG (a scalable format that stays sharp at any size). PNG works fine for most uses. Save it to your computer, then insert it into documents, emails, or design software as you would any other image. The code doesn't expire and doesn't require an account.

Most free generators also let you customize the appearance — change the color, add a logo in the center, or adjust the size — though the basic black-and-white version works just as well and scans faster.

Creating a QR code in Google Chrome

If you're already looking at the webpage you want to link to, Chrome can generate the code for you without leaving the browser. Right-click anywhere on the page and select Generate QR code for this page. A small window opens showing the code.

Click the download icon (usually a down arrow) to save the image to your computer. This method is the quickest if you're linking to a page you can actually visit. The code points to the exact URL in your address bar, so you don't have to type it out.

Making a QR code in Microsoft Word or Google Docs

Word and Google Docs both have built-in QR code tools. In Word, go to the Insert tab, select QR Code, paste your URL, and click Insert. The code appears in your document and you can resize it or move it around like any other image.

In Google Docs, click Insert, then Image, then Generate a QR code. Paste the URL and click Create. The code inserts into your document. Both methods are useful if you're building a flyer, business card template, or document that already contains the link text — the QR code becomes a visual shortcut to the same destination.

Static codes versus dynamic codes

A static QR code points to one URL forever. Once you create it, you cannot change where it leads. Static codes are free, never expire, and work offline — they're the right choice for printed materials, product packaging, or anything you won't need to update.

A dynamic QR code lets you change the destination URL after you create the code. You might use this if you're running a time-limited promotion and want to point the same code to different landing pages over time, or if you want to track how many people scanned it. Dynamic codes usually require a paid account with a service like Unitag, QR Code Generator Pro, or Beaconstac. The cost is typically a few dollars per month.

Testing your QR code before you use it

Always scan your code on a real phone before printing or publishing it. Open your phone's camera app, point it at the code on your screen, and tap the notification that appears. Make sure it opens the correct URL and that the page loads properly.

Different phones and camera apps behave slightly differently, so test on both iPhone and Android if possible. If the code doesn't scan, try increasing the size or adjusting the contrast. A code that's too small or printed too faintly will fail to scan even if it's technically correct.

Sizing and placement tips

A QR code needs to be at least 1 inch by 1 inch (about 2.5 centimeters) to scan reliably from arm's length. Larger is better — a 2-inch or 3-inch code scans from across a room. If you're printing on a business card or small label, keep the code at least 1 inch square and make sure there's white space around all four sides.

Place the code where it's easy to see and photograph. On a poster, put it in a corner or at the bottom. On a product package, avoid placing it on a curved surface or where it might get wrinkled or creased. The clearer and flatter the code, the faster it scans.

Frequently Asked Questions

Can I change where a QR code points after I create it?

Not with a static code — once created, it points to that URL forever. If you need to change the destination, you'll need to create a new code. Dynamic codes do allow changes, but they require a paid account with a QR code service.

What file format should I download my QR code in?

PNG is the standard and works everywhere. SVG is better if you plan to resize the code many times without losing quality. Avoid JPG because it compresses the image and can make the code harder to scan.

Do QR codes expire?

Static codes don't expire — they work indefinitely as long as the URL they point to still exists. If the webpage goes down, the code will still scan but show an error. Dynamic codes depend on the service hosting them; if you stop paying or the service shuts down, the code stops working.

Can I use a QR code to link to a phone number or email address?

Yes. Instead of pasting a web URL, paste tel:+1234567890 for a phone number or mailto:name@example.com for an email. Most QR generators accept these formats and will open the phone dialer or email app when scanned.

Why isn't my QR code scanning?

The most common reasons are the code is too small, the contrast is too low (light colors on light backgrounds), or there's not enough white space around the edges. Try printing or displaying it larger, increasing the contrast, and making sure there's at least a quarter-inch of white border on all sides.