Static vs Dynamic QR Codes
Static QR codes store the data inside the image. Dynamic QR codes typically store a short URL that redirects through a service. Use this guide to compare the tradeoffs and decide which one fits your project.
- - Static: data embedded, private
- - Dynamic: editable destinations
- - Static: no service required
- - Dynamic: analytics and tracking
Key differences at a glance
The biggest difference is where the data lives. Static QR codes embed the full payload in the QR itself. Dynamic QR codes usually embed a short redirect URL that points to a service. That service can change the destination and collect scan analytics.
Static QR codes
Static means the data is embedded in the QR image. The QR does not depend on a redirect service and it works offline. If the content changes, you generate a new code.
Pros
- No third-party service required.
- Maximum privacy and no QR scan tracking by default.
- Works offline for text or Wi-Fi QR codes.
- Simple, fast, and easy to share.
Cons
- Cannot change destination without reprinting.
- Long content makes the QR denser and harder to scan.
- No built-in analytics.
Dynamic QR codes
Dynamic usually means the QR stores a short URL that redirects through a service. That service can update the destination and log scans for analytics.
Pros
- Edit destinations without changing the printed QR.
- Get analytics like scan counts and devices.
- Short URLs keep the QR visually simpler.
Cons
- Requires a redirect service to stay online.
- Services can add tracking and privacy concerns.
- Subscriptions or limits are common.
- If the service goes down, the QR breaks.
Privacy and tracking tradeoffs
Static QR codes do not need a redirect service, so there is no extra layer that can record scan data. The scan simply opens the embedded content or URL. Dynamic QR codes route through a service, which is where analytics come from. That service can log scan time, device type, approximate location, and referrers depending on its settings.
If privacy matters, static is the safer default. If you need to measure performance or change destinations after printing, dynamic may be worth the tradeoff. The key is to be transparent about tracking and choose a service with clear data practices.
When to use static QR codes
Static QR codes are best when the content is stable and you want the simplest, most durable setup. They are ideal for long-lived signage and offline-friendly uses.
- Wi-Fi sharing and device setup instructions.
- Contact details on business cards or badges.
- Short URLs that will not change.
- Plain text notes, labels, and checklists.
QrGent generates static codes client-side, so your data stays in your browser and no server runtime is required.
When to use dynamic QR codes
Dynamic QR codes are useful for campaigns, marketing, or evolving content. They let you update destinations without reprinting and provide scan analytics.
- Marketing campaigns with changing landing pages.
- Temporary promos where you need post-print updates.
- Situations that require scan metrics and reporting.
- Testing multiple destinations over time.
If you choose dynamic, consider how long the service must stay online and what happens if the subscription ends.
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Static vs Dynamic QR FAQ
What is a static QR code?
A static QR code stores the data inside the QR image itself. The destination does not change unless you generate a new code.
What is a dynamic QR code?
A dynamic QR code usually stores a short URL that redirects through a service. The service can change the destination and track scans.
Are dynamic QR codes bad for privacy?
They can be. A redirect service can log scan data such as time, device, and location. Static QR codes do not require a redirect service.
When should I use a static QR code?
Use static codes when the content is stable, you want maximum privacy, or you need the QR to work offline or without a third-party service.
When should I use a dynamic QR code?
Use dynamic codes when you need to change the destination after printing, or when analytics and campaign tracking are essential.
Do static QR codes expire?
No. Because the data is embedded directly, a static QR code will keep working as long as the destination or data remains valid.