Desert Pyramid208 blocks
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Ruined Portal252 blocks
Minecraft Slime Chunk Finder
Minecraft Slime Tools · By the ChunkScan Team · Updated August 2026
Quick answer: To find slime chunks, enter your Java world seed on this page and the map highlights every slime chunk around any coordinates; build the farm below Y=40 inside one. On Bedrock Edition slime chunks are identical in every world, so no seed is needed. Link straight to a result with /slime-finder?seed=YOUR_SEED.
Slimes spawn below Y=40 only inside specific chunks — about one chunk in ten. This slime chunk finder maps them for any seed, entirely in your browser, so your seed is never sent to a server. Java slime chunks depend on the world seed, so enter yours. Bedrock slime chunks are the same in every world, so no seed is needed. Looking for chunk borders and other structures too? Use the full chunk finder.
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Already have a world? Open any seed in the Minecraft seed map to see its biomes and structures, or browse all seed tools.
What is a slime chunk?
Slimes spawn naturally below Y=40 only inside slime chunks, which make up roughly one chunk in ten. They drop slimeballs — needed for sticky pistons, leads and magma cream — so a slime chunk near your base is the fastest route to an automated slimeball supply. A chunk is a 16x16 block column, so block 0 to 15 is chunk 0 and block -1 is chunk -1.
Slime chunks on Java vs Bedrock
On Java Edition, slime chunks are determined by your world seed, so every world has them in different places — enter your seed to see yours. On Bedrock Edition, slime chunks are seed-independent: the same chunk coordinates are slime chunks in every Bedrock world, so you do not need your seed at all. A Java slime map will give a Bedrock player the wrong answer, which is the most common mistake with slime finders.
Building a slime farm
A slime farm needs a flat, spawn-proofed area below Y=40 inside a slime chunk. Clusters of adjacent slime chunks are far more productive than a single chunk, because a larger contiguous floor spawns more slimes per cycle. The map highlights the largest cluster on screen. To start a fresh world with a dense cluster near spawn, the seed search can filter for eight or more connected slime chunks.
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