This builds the document described in instructions your heirs can actually follow — the map, not the keys. It records what exists and where to look, so that it can be stored somewhere findable without giving anything away.
Everything happens in your browser. Nothing is sent anywhere, nothing is saved, and closing the tab erases it. Fill it in, print it, and the paper is the only copy.
What to do with the printed page
Store it where it will be found — with your will, your household documents, or your executor. It contains no secrets, which is exactly what makes that safe. The keys themselves live somewhere else entirely, released on a condition you set.
Then do the part almost nobody does: hand it to the person named in section 4, on a wallet holding almost nothing, and watch them try to follow it without your help. Every plan fails its first rehearsal on something mundane — a word nobody can read, a step that assumed knowledge, a device nobody could turn on. Each of those would have been fatal for real, and each takes ten minutes to fix now.