Secret Santa name draw
Type everyone's name, keep couples from drawing each other, set a spending limit, and get one link for each person to send privately. Nobody signs up and nobody gives an email address.
How the links keep it secret
The names never leave this browser: each person's match travels inside their link, after the #, which browsers don't send to any server, ours included. Whoever holds a link can open it, so send each one to its person alone, by text or chat. If you're the organizer and playing too, don't open the others.
Picking a spending limit
A low limit, $20 to $30, suits a group that doesn't know each other well: nobody feels outspent. Each link shows the limit and leads to Secret Santa gifts under that amount, every one with the price Amazon showed in the last day. Playing the swap version instead? Here is how a white elephant swap works.