QR Code Restoration Tool (app.humanqr.com)

This is a continuation of an effort to collect a data set of broken QR codes and provide a way to fix broken QR codes. All the QR codes that are uploaded get saved and go into a data set that may eventually be published.

A neat tool, but why is there a network round-trip for every interaction? It means that when your server's running slow, the process is excruciating.