Java Edition · verified versions
Find slime chunks near your base in supported Minecraft Java versions. Choose a verified version, enter your world seed and block coordinates, and inspect a local chunk grid.
Enter your world seed and coordinates, then find the nearby chunks.
Choose the supported Java version and enter your world seed. If commands are available, /seed shows the numeric seed for your world.
Enter your current block X and Z coordinates and select Find slime chunks. The grid shows up to 11 × 11 nearby chunks.
Select a green square to see its chunk coordinates and block boundaries. Copy those boundaries to help plan your farm.
This calculation is verified against official Java server methods for 1.18.2, 1.19.4, 1.20.1, 1.21.1, 1.21.11, 26.2 and 26.3. Bedrock Edition and other Java versions have not been verified here. For Java 26.3, slimes spawning in a slime chunk must be below Y=40 and the difficulty cannot be peaceful. Other spawning conditions still apply; a highlighted chunk alone does not guarantee slimes.
Use the seed from the Java world you intend to play. If commands are available, run /seed and enter the signed number exactly, including any minus sign. Choose the exact game release from the selector. The result applies to the seed and verified version you entered. The form accepts block X and Z coordinates and converts them to chunks, including positions west or north of zero.
Each square represents one 16 × 16 chunk viewed from above. The block coordinates you entered sit in the central square. Green marks a candidate slime chunk, and the selected panel shows the chunk coordinates and inclusive block ranges. Select a square with a mouse or keyboard, then copy the boundaries for your build. The view covers up to 11 × 11 chunks; it does not show terrain, structures or a whole-world map.
A slime chunk is a starting point, not a promise that slimes will appear. Before digging, check the rules for your version, including dimension, height, difficulty, player position, available spawn space and any relevant game settings. In Java 26.3, the official server code checks that the slime-chunk position is below Y=40 and the difficulty is not peaceful. Those checks are not a complete spawning checklist.
Make sure you are using Java Edition and one of the exact versions listed, then recheck your world's numeric /seed and block X/Z. Editing any field clears the old grid; select Find slime chunks again to calculate the updated result. If you play on a server, confirm the seed with its operator. Mods, plugins and custom game rules can affect actual spawning, so verify a candidate in the world you plan to use.
No. The tool supports only the verified Java releases listed in the version selector and cannot calculate Bedrock results.
A slime chunk is only a starting point. Check the dimension and height for your version, along with other spawning conditions such as available space and player position.
Each chunk covers 16 × 16 horizontal blocks. Select a square to see its exact X and Z block range, including for negative coordinates.
Yes. This finder accepts a text seed or a signed 64-bit number. If you can use /seed in your world, entering the displayed number is the safest way to match it.