All QR codes look the same from the outside — a square grid of black and white modules. But under the hood, static and dynamic QR codes work in fundamentally different ways. Understanding the difference will save you from printing 5,000 flyers with the wrong link and no way to fix it.
What Is a Static QR Code?
A static QR code encodes data directly into the image itself. When you create a QR code for https://example.com, that URL is literally baked into the pattern of dots.
When someone scans it, their phone reads the URL straight from the image and opens it. No server involved, no middleman, no tracking.
Key characteristics:
- The content is permanent — once created, it cannot be changed
- Works without internet on the generator's side (the data lives in the QR itself)
- No scan tracking or analytics
- Slightly simpler pattern (less data encoded = fewer modules)
- Free everywhere, no account needed
Best for: WiFi passwords, vCard contacts, email addresses, phone numbers, plain text — anything where the content won't change.
What Is a Dynamic QR Code?
A dynamic QR code doesn't encode your destination URL directly. Instead, it encodes a short redirect link — like qree.app/abc123.
When someone scans it, their phone goes to qree.app/abc123. The server then redirects them to your actual destination URL. This redirect happens in milliseconds — the user doesn't notice.
But because the request passes through the server, two things become possible:
- You can change the destination URL at any time without reprinting the QR code
- Every scan is logged — you see who scanned, when, where, and from what device
Key characteristics:
- Destination URL can be updated after creation
- Full analytics: scan count, geography, devices, time
- Requires an account (because the redirect needs to be stored on a server)
- The QR pattern is usually simpler (it only encodes a short URL)
- Depends on the redirect server being online
Best for: marketing campaigns, flyers, posters, packaging, menus — anything printed where you might need to update the link or measure results.
Side-by-Side Comparison
| Feature | Static QR | Dynamic QR |
|---|---|---|
| Content | Encoded directly | Short redirect link |
| Editable after creation | No | Yes |
| Scan tracking | No | Yes (count, location, device, time) |
| Works offline | Yes (data in QR) | Needs server for redirect |
| QR code density | Higher (more data) | Lower (short URL) |
| Account required | No | Yes |
| Best for | Permanent info (contacts, WiFi) | Campaigns, menus, anything changeable |
When to Use Static QR Codes
Use static when the content is permanent and you don't need analytics:
- WiFi QR code at your café — the password doesn't change often, and you don't need to know how many people connected
- vCard on your business card — your contact info is your contact info
- Phone number or email — these rarely change
- Plain text — a quote, instructions, or any fixed message
- Personal use — sharing your WiFi with friends, linking to your personal site
Static QR codes are simpler and more reliable since they don't depend on any external server.
When to Use Dynamic QR Codes
Use dynamic when you need flexibility or measurement:
- Flyers and posters — you printed 1,000 copies, but the campaign URL changed? Just update the redirect. No reprinting.
- Restaurant menus — the QR on the table stays the same, but you can update your menu link daily
- Product packaging — update product pages, add seasonal promotions, or change the landing page language by region
- A/B testing — create two QR codes pointing to different landing pages and compare scan rates
- Event marketing — track how many people scanned the QR on your invite vs. at the venue
Dynamic QR codes are essential for any business use where you want to measure ROI or need the ability to change your mind after printing.
A Real-World Example
Imagine you run a small bakery. You print 500 flyers with a QR code linking to your online ordering page.
With a static QR: the link is permanent. If you redesign your website and the URL changes, every single flyer now points to a 404 page. You need to reprint.
With a dynamic QR: you log in to your dashboard, change the destination URL to the new page. Every existing flyer now redirects to the right place. Plus, you know that 73 people scanned your flyer last week, mostly on iPhones, mostly from your neighborhood.
How to Create Each Type
At qree.app, you can create both types:
Static QR: go to the homepage, enter your content, and download. No sign-up needed. The QR is generated in your browser — we never even see the data.
Dynamic QR: sign up for a free account, create a QR in your dashboard, and get a trackable short link. You can edit the destination and view analytics anytime.
During Early Access, all features including unlimited dynamic QR codes and full analytics are completely free.