Question 1

What does Seed Lab do that the Seed Map doesn’t?

Accepted Answer

Seed Map shows you one seed. Seed Lab does the reverse: you describe the world you want — say a village within 800 blocks and an ocean monument within 2,500 blocks of spawn — and it searches random seeds until it finds ones that match. Click a result to open it on the live map.

Question 2

How does the search work and is it accurate?

Accepted Answer

It runs entirely in your browser, generating each candidate seed with the same faithful Minecraft Java 1.18+ world generation the Seed Map uses, then checking your structure conditions against spawn. Nothing is uploaded. Browser speed limits how many seeds it can check per second, so looser distances find matches faster.

Question 3

Which structures can I search for?

Accepted Answer

Villages, pillager outposts, desert and jungle temples, witch huts, igloos, ocean monuments, ocean ruins, shipwrecks, woodland mansions, ruined portals, trail ruins, trial chambers, and strongholds — each with its own max distance from spawn.

Question 4

Is this Java or Bedrock?

Accepted Answer

Java Edition. Bedrock uses a different generator and is not supported.