Java Edition only. Bedrock uses a different generator, so Bedrock seeds will not match. Coordinates point to the structure’s starting chunk. Not affiliated with Mojang or Microsoft.

How the trial chamber finder works

Trial chambers arrived in 1.21 and are the most common large structure in the game, buried between Y −20 and Y −40 in most biomes. This finder lists the closest ones to spawn and shows the rest as you zoom in. Each chamber holds trial spawners, vaults and the breeze mob.

Enter a seed in the box above the map and press Map it. The Find nearest panel on the left runs automatically for this structure and lists the closest results with distances from spawn. Click a result to center the map on it, then use Copy X Z or Copy /tp. Change the version selector to match your game; placement shifts between updates.

Tips

• Chambers are underground; the marker gives the surface position. Dig down or follow a cave.
• Because they are common, the layer only draws when you zoom in past 1:8.
• Ominous trials need a Bad Omen potion from a captain; pair this with the outpost layer.

For what to expect inside, what spawns there and how to loot it safely, read the wiki’s trial chamber guide. To see every structure type at once, open the full seed map.