Free QR Code Generator
Generate production-ready static QR codes for websites, WhatsApp, Wi-Fi, contacts, and offline campaigns. Rendered directly in your browser with built-in UTM attribution and instant vector SVG / PNG exports.
Attach attribution parameters to measure offline-to-online scans directly in Google Analytics, Mixpanel, or PostHog.
QR payload generation happens locally in your browser. The QR content is not uploaded to Think Unlimited's servers.
SVG vector format recommended for large-format physical print.
Static vs. Dynamic QR Codes: What You Need to Know
Understanding how QR payloads work ensures you never run into unexpected subscription paywalls or broken print campaigns.
| Dimension | Static QR (Think Unlimited) | Dynamic QR / Redirect Service |
|---|---|---|
| Destination Storage | Encoded directly into the QR matrix | Points to a 3rd-party redirect URL |
| Expiry / Paywalls | No QR expiry · No subscription needed | May stop working if the redirect service or subscription is discontinued |
| Change Link Later | No (Permanent static payload) | Yes (Through redirect dashboard) |
| Campaign Analytics | Track via destination UTM parameters in your own analytics | Analytics and scan data depend on the provider's redirect infrastructure and privacy policy |
| Data Privacy | Generated locally · Nothing uploaded | Scans route through the intermediate service |
Note: Static QR codes don't contain a subscription or expiration mechanism. However, ensure your destination website or URL remains online and active.
Segment Physical Placements
Attach dedicated UTM parameters for each print placement (e.g. utm_source=brochure vs. utm_source=billboard). This allows your analytics to evaluate true return on physical spend.
Ensure Optical Scannability
As a practical starting point, QR codes are often sized around 1/10 of the intended scanning distance. Always maintain sharp contrast against background artwork and test printed proofs with multiple phone cameras before mass production.
Redundancy for Physical Wear
For posters, outdoor hoardings, or badges subject to scuffs or folds, choose High (H) error correction. This embeds up to 30% error-correction capacity so devices decode damaged codes seamlessly.
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