Do people need an app to scan a QR code business card?

No. The built-in camera on iPhone and on most Android phones reads QR codes: point the camera at the code and tap the link that appears. Google Lens does the same on Android phones whose camera app doesn't.

Should my QR code open a website or a contact file?

The most useful option opens a page about you that has a Save contact button. A page can be updated after you print or share the code, shows your work, and still adds you to the other person's contacts in one tap. A QR that only holds a vCard saves the contact but shows nothing else, and you can't change it later.

Can I change the details after I share my QR code?

Yes, if the code points at a link rather than holding the contact details itself. Edit the page the link opens and every printed or shared code shows the new details. A static vCard QR has your details baked in, so a new phone number means a new code.

How big should a QR code be on a business card?

At least about 2 cm (0.8 in) square on paper, with a light quiet margin around it, and dark modules on a light background. On a phone screen, turn the brightness up and keep the code at least a third of the screen wide.

Is a free QR code business card good enough?

Yes, as long as the code is not tied to a trial. Some QR generators create 'dynamic' codes that stop working when a free trial ends. A code that links to a page you own, such as founders.page/yourname, keeps working as long as the page exists.

QR Code Business Card: Share Your Contact in One Scan (2026)

A QR code business card is a card, printed or on your phone, with a QR code that opens your details when someone scans it. Done well, one scan takes the other person to a page about you with a Save contact button, so you land in their phone's contacts with your name, photo, email and links, and nobody has to type or spell anything.

This guide covers what the QR should open, the three ways to make one, and how founders use them at meetups and conferences.

Key takeaways

Any phone camera reads QR codes. No app needed.
Point the QR at a link you control, not raw contact data, so you can update your details without reprinting.
The best destination is a page about you with a one-tap Save contact (a vCard file underneath).
Keep it on your phone as an image for events; print it only if you hand out paper anyway.

What a QR code business card actually does

A QR code is just a container for text. On a business card that text is usually one of two things:

A link (for example founders.page/yourname). Scanning opens a page in the browser.
A vCard, the standard contact format phones understand. Scanning offers to add the contact directly.

Both work. The difference shows up a month later, when you change your email, start a new company, or want people to see what you've built.

	QR holds a link	QR holds a vCard
Saves you to contacts	Yes, via a Save contact button on the page	Yes, directly
Shows your work, links and photo	Yes	Only what fits in the contact
Update details after sharing	Yes, edit the page	No, make a new code
Works offline	No	Yes
Tracks how many people scanned	Possible	No

For most founders the link wins: it does everything the vCard does, plus it shows the person why they should remember you.

What the QR should open

Whatever the code opens is the real business card. A good destination has:

Your photo and name at the top, so they can match you to the conversation.
One line about what you do: "Founder, OllamaOCR" beats a job title nobody understands.
A Save contact button that downloads a vCard with your name, photo, email, phone and page.
What you've built, with links, because that's what makes a stranger follow up.
One way to book time if you take calls.

Avoid pointing the code at your company homepage. It answers "what does the company do", not "who was that person I just met".

Three ways to make one

1. A QR generator plus a contact file

Paste your details into a QR generator and download the image. It's fast, but static codes can't be edited, and many "free" generators make dynamic codes that redirect through their servers and stop working when a trial ends. Read the fine print before printing 500 cards.

2. A digital business card app

Apps built for this host a card page and give you a QR. They work, though most are generic: built for sales reps and real-estate agents, with a feature list for teams and CRM syncing, and they don't show what you've built.

3. A founder page with a built-in card

This is what we built founders.page to do. Your page at founders.page/yourname already shows who you are and every product you've built. The Founder Card turns it into a business card:

Open your page and tap Founder Card. It shows your card with a large QR.
The other person points their camera at it and opens your page.
They tap Save contact and you're in their phone with your photo, email, phone and page link.

A founders.page Founder Card: Naveen's photo, name and email on a green card, with a QR code to founders.page/naveenm — My own Founder Card. Scan the code with your phone camera to try it.

You choose which email and phone go on the card, you can download the card as an image to keep in your photos, and both buttons can be switched off if you'd rather not show them. It's free: claim your page and the card comes with it.

Using it at a meetup or conference

Save the card image to your phone before you go. Venue Wi‑Fi is unreliable; an image in your photos opens instantly.
Turn your screen brightness up when someone scans. Dim screens are the most common reason a scan fails.
Say the one line out loud as they scan: "That's my page, everything I've built is on it." It gives them a reason to open it later.
Follow up the same day with one specific sentence about what you talked about. The contact is saved; the follow-up is what turns it into a relationship.
Put the same QR on your slides when you speak, on the last slide, for at least 10 seconds.

Design rules that keep the code scannable

Dark code on a light background, never the reverse.
Leave a clear margin around the code (the "quiet zone").
At least about 2 cm (0.8 in) square on paper.
Don't put a large logo over the middle unless the generator uses high error correction.
Test it with two different phones before printing.

Paper card or phone?

You don't have to choose. A phone card is free, always current and can't run out. A paper card is handy when your phone is at 3% or someone collects cards for a raffle. If you print, put the same QR on the back so the paper version leads to the same page.

Next step

If you want a QR code business card that also shows what you've built, create your founders.page, add the email and phone you'd normally print, and download your card. It takes a couple of minutes, and the next time someone asks "what's your email?", you hold up your phone instead.