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ChunkScout
Map

About ChunkScout

A seed toolkit built around one map instead of twenty pages.

ChunkScout started from a simple frustration: to plan a world you had to open a village finder, then a stronghold finder, then a slime finder, and stitch the results together in your head. We wanted the whole picture on one screen — with dark mode, on a phone, without an account.

How it works

Minecraft’s world generation is deterministic: given a seed, edition and version, the game always produces the same biomes and structure positions. ChunkScout runs a port of that generation logic (the open-source cubiomes library) compiled to WebAssembly, inside Web Workers in your browser. Your device does the maths, which is why the map feels instant and why nothing about your world has to be uploaded.

Bedrock support is layered on top: biomes share the Java generator from 1.18 onwards, slime chunks use Bedrock’s own algorithm, and structure placement is implemented per structure type. Where a Bedrock algorithm isn’t finished we show a “Java only” badge instead of guessing.

Accuracy policy

  • Exact — same algorithm as the game; positions match in-game.
  • Approximate — may be off by a few blocks or a chunk (e.g. terrain-dependent placements).
  • Java only — valid for Java Edition only.
  • Beta — new and still being verified.

Features the engine can’t simulate yet (dungeons, caves, ravines, ore veins, fossils) are left out rather than faked. They’re on the roadmap.

Credits

World generation is powered by cubiomes (MIT). Icons are from Lucide. The site is built with Next.js and Tailwind CSS. ChunkScout is an independent fan project.

Contact

Bug reports, wrong positions and feature requests are all welcome — please include the seed, edition and version. Reach us at hello@chunkscout.app or on GitHub.

Not an official Minecraft product. Not approved by or associated with Mojang. Minecraft is a trademark of Mojang Synergies AB.

Changelog

  1. First public preview · v0.1.0
    • NewInteractive seed map with biomes, structures, slime chunks and spawn point on one canvas.
    • New26 dedicated finders for Overworld, Nether and End structures, plus biome and spawn finders.
    • NewUtilities: nether portal calculator, seed converter, spawn chunk and coordinate calculators, ore levels.
    • NewDark mode, keyboard shortcuts and a mobile-first control sheet.
    • NoteBedrock structure placement is marked “Java only” where the algorithm is not yet implemented — we never show guessed data.
  2. Engine upgrade · v0.0.3
    • ImprovedWorld generation engine now covers Java 1.7 through 26.3 and Bedrock 1.18 through 26.3, including Large Biomes.
    • ImprovedStructure searches run in Web Workers so the map stays smooth while scanning.
    • FixedText seeds with leading/trailing spaces now hash identically to the game.
  3. Groundwork · v0.0.2
    • NewDesign system, app shell and catalog pages.
    • NewPWA manifest — add ChunkScout to your home screen.