Timed QR Reveal

About this tool

A one-time, time-limited QR reveal tool for short text, card numbers, invite codes and other scannable content. The sender creates a link and separate 4-digit PIN; entering the correct PIN permanently uses the link and reveals the QR code for 15–90 seconds. Five wrong attempts lock the link, unused links expire automatically, and switching away hides the reveal. It limits when and to whom content is shown, but cannot prevent screenshots or photos during the valid reveal.