QR code error correction explained
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Level L — 7% recovery
Smallest code at a given URL length, but cannot tolerate much damage. Use only when the code is printed on pristine surfaces and never overlaid.
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Level M — 15% recovery (default)
Sensible default for most marketing codes. Good balance between code density and damage tolerance.
- 3
Level Q — 25% recovery
Recommended whenever a small logo (up to 15%) is overlaid in the centre, or when the code will sit on stickers exposed to wear.
- 4
Level H — 30% recovery
Required for logos covering 20–25% of the code area, or for outdoor signage exposed to rain, scratches, and fading. Densest matrix.
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Trade-off summary
Higher correction = more redundancy = denser code = larger minimum print size for the same data. Pick the lowest level that meets your worst-case damage and overlay scenario.
Frequently asked questions
What is QRCode Suite?
QRCode Suite is a standalone QR code platform: create a free account and generate branded, dynamic QR codes in the browser — no WordPress required. Connectors bring the same codes to WordPress and WooCommerce, where orders can be attributed to specific QR codes.
Does QRCode Suite work without WordPress?
Yes. QRCode Suite is a standalone SaaS — sign up, create QR codes, and track scans entirely on qrcode-suite.com. The WordPress plugin is an optional connector that brings your codes into wp-admin and adds WooCommerce order attribution.
Does QRCode Suite require a separate subscription?
The Free plan is available at no cost — no credit card required. Paid plans (Pro €9, Business €29, Agency €79 per month) unlock unlimited codes, redirect rules, and more. There is no separate per-scan fee.
What QR code types does QRCode Suite support?
QRCode Suite supports 22 QR code types: Static URL, Dynamic URL, Plain Text, Phone, Email, Location, Link Hub, SMS, WhatsApp, Wi-Fi, vCard, Social profile, PDF, File download, App download, Coupon, Calendar event, Lead capture form, Review collection, Wholesale inquiry, Loyalty reward, and Custom payload.
Can I change the destination of a QR code after printing it?
Yes. Dynamic QR codes use a short redirect URL. You can update the destination from your dashboard at any time without generating or reprinting the code.
Is QRCode Suite GDPR-compliant?
QRCode Suite is built with GDPR in mind: raw IP addresses are never stored — visitors are counted with keyed hashes — bot traffic is filtered automatically, and scan events are purged once your plan retention window elapses. Consult your legal team for your specific obligations.