How to Create a QR Code for Any Link (and Make It Scan Every Time)

QR codes are everywhere again: restaurant menus, event posters, product packaging, business cards and even TV adverts. They let someone jump from the physical world to a web page in one scan.

Making one is easy. Making one that scans reliably takes a little more thought. This guide covers both.

How to create a QR code for a link with Trimx

1. Go to the Trimx homepage.
2. Paste the link you want the QR code to open, and click Shorten.
3. Click the QR button under your new short link.
4. Click Download to save the QR code as a PNG image.

You can also create a QR code for any link already in your history by clicking the QR icon next to it.

That's all. The QR code contains your short link, so when someone scans it, they go through the short link to your destination, and the visit is counted in your click analytics.

Why put a short link inside your QR code?

A QR code is made of tiny black and white squares called modules. The more data you store, the more modules the code needs, and the denser it becomes.

• A long URL with tracking parameters can produce a crowded QR code that's hard to scan when printed small or viewed from a distance.
• A short link like trimx.me/menu produces a simpler, more open pattern that phone cameras read quickly.

Trimx also generates QR codes with the highest level of error correction, which means the code can still be read if part of it is scuffed, creased or slightly covered.

There's a second benefit: you can measure scans. Each scan passes through your short link, so you can see how many people used the code, on which days, and from which countries.

Rules for QR codes that scan every time

1. Make it big enough

A common rule of thumb is that a QR code should be at least 2 × 2 cm (about 0.8 × 0.8 inches) for something held in the hand, like a business card or menu.

For things viewed from further away, use the distance rule: the code's width should be roughly one-tenth of the scanning distance. A poster read from 2 metres away needs a QR code around 20 cm wide.

2. Keep strong contrast

Dark modules on a light background work best. Black on white is the most reliable. Avoid:

• Light colours on light backgrounds
• Inverted codes (light modules on a dark background), which some scanner apps can't read
• Busy photos behind the code

3. Leave a quiet zone

QR codes need empty space around them, called the quiet zone. Leave a clear margin around all four sides of at least four modules wide. Don't crowd the code with text, borders or other graphics.

4. Scale it without blurring

When resizing the PNG for print, keep the edges crisp. In most design tools, scale the image proportionally and avoid stretching it. If your tool offers a resampling option, choose "nearest neighbour" to keep sharp square edges.

5. Print on a flat, matte surface

Glossy laminates can reflect light and confuse cameras. Curved surfaces, like bottles, can distort the code. Test on the real material before printing thousands.

6. Add a call to action

A QR code on its own doesn't tell people why they should scan it. Add a short line next to it:

• "Scan for today's menu"
• "Scan to book a table"
• "Scan for setup instructions"

Also print the short link itself underneath, such as trimx.me/menu, so people without a scanner can type it.

7. Test before you print

Scan the final printed proof with at least two different phones, ideally one iPhone and one Android, from the distance and lighting where people will really use it.

Great places to use QR codes

• Restaurant tables and menus: link to the menu, ordering page or reviews.
• Product packaging: link to setup guides, recipes or warranty registration.
• Posters and flyers: link to tickets, sign-up forms or event details. See short links for print.
• Business cards: link to your link-in-bio page or portfolio.
• Presentations: put a QR code on your final slide so the audience can grab your slides or contact details.
• Shop windows: link to opening hours, offers or your online store.

Frequently asked questions

Are QR codes from Trimx free?

Yes. You can generate and download QR codes for your short links for free.

Do Trimx QR codes expire?

The QR code keeps working as long as the short link inside it exists. If you delete the short link, the QR code will stop working, so keep links that are printed on physical materials.

Can I track how many people scanned my QR code?

Yes. Because each scan goes through your short link, scans appear in that link's analytics alongside regular clicks.

Why isn't my QR code scanning?

The most common causes are a code that's printed too small, low contrast between the code and background, no quiet zone around the edges, or a glossy surface reflecting light. Check each of these and test again.