NoqNoq is a cloud-based system for visitor registration and management. It uses QR codes to allow visitors (or delivery persons) to scan, fill out health declaration or contact details, timestamp entry, and log their presence.

It was developed (or popularized) in the context of COVID-19, to help organizations maintain records of visitors and contact information for tracing or safety.

The software is designed to be easy to implement without requiring heavy infrastructure. (E.g. no special hardware needed beyond a smartphone or QR code scan.)