قرعة سيكرت سانتا لتبادل الهدايا.

Up to 300 participants. Nothing is e-mailed or stored: you send the links yourself. A link contains its match, so anyone who has it can read it. Everything is calculated in your browser; nothing you type is uploaded.

The draw is a random permutation with no self-gifts, found by backtracking over a secure random shuffle, so exclusions and the no-swap rule are always respected when a solution exists.

Seven names with “Amina > Ben” excluded give seven pairs: nobody draws themselves, Amina never draws Ben and no two people draw each other.