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Minecraft Tools
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About Minecraft Tools

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

Minecraft Tools 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.

What is on the site

  • A seed map with every structure, the biomes, the Nether and the End on one canvas, and finder pages for each structure, biome and ore.
  • Ore, cave, ravine and dungeon finders that replay the game's own generation against a model of the terrain.
  • A seed finder and a slime seed finder that test seeds on your device against conditions you set.
  • Calculators for portals, coordinates, spawn chunks, ore levels and text seeds.
  • Guides on seeds, structures, farms, ores and the Nether and End, written from the same engine with example seeds you can open on the map.
  • A catalogue of Bedrock add-ons and a server list, described below.

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. Minecraft Tools runs a port of that generation logic (the open-source cubiomes library, extended with our own Bedrock placement, ore, cave and loot code) 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.

How we check it against the real game

A re-implementation can drift from the game, so we test it against worlds the game itself generates. For Java we run the official server for each supported recent version, create fresh worlds for five seeds, and ask the game over its console where each structure is, comparing every answer with the map. For Bedrock we run the Bedrock Dedicated Server and check whether a structure exists at each marker. Ores are compared block by block.

  • World spawn matched the game's level.dat exactly on all ten Java test worlds (26.3 and 1.21.11).
  • Strongholds: 12 of 12 test origins per world agreed with the game; biomes 230 of 230 sample points per world.
  • Exact structure types matched the game's nearest structure 95 to 100% of the time, and at most one marker in 300 pointed at a structure the game had not generated.
  • Diamonds: 97.2% of the blocks the finder shows were diamonds in the game, and it showed 98.9% of the game's diamonds.

The full method and the numbers per structure, edition and ore are in the accuracy guide. When a new game version changes generation, the tests are run again before that version appears in the version list.

What the badges mean

  • Exact: same algorithm as the game; the structure is at this chunk.
  • ±1 chunk: the marker is the origin of something that spreads over several chunks, such as a mineshaft.
  • Approximate: the game attempts the feature here, but terrain can cancel or move it.
  • Java only: Bedrock placement is not implemented for this type, so Bedrock maps show nothing for it.
  • Likely (ores): a deposit that rests on an approximation in the terrain model, right about nine times in ten.

Fossils and lava pools are not on the map. Whether they generate depends on terrain checks we cannot reproduce reliably, and a marker that is often wrong is worse than no marker.

How the guides are written

Every coordinate, distance and count in a guide comes from the engine for the seed, edition and version named next to it, and accuracy figures come from the test runs above. Screenshots are of this site at those seeds. Where a guide recommends a YouTube video by another creator, it is labelled with the creator's name and only loads if you press play. Each guide shows the date it was last updated; when a game update changes something a guide relies on, we recompute the examples and update the date.

Found a mistake? Send the page and what you found through the contact page. Confirmed errors are fixed and, for positions on the map, added to the next test run.

Add-ons and servers

The add-on catalogue lists Bedrock add-ons, maps and packs published by their creators on MCPEDL. Names, descriptions, screenshots and files belong to those creators; each page credits the creator and links the original post. The server list shows public servers with the version and status we measure when we check them. Neither section is affected by anything you do on the map.

How the site is paid for

Ads on the free plan, and an optional Pro subscription that removes them and adds conveniences such as a larger AI allowance, an unlimited library and an HD map export. Finding structures, ores and biomes is free and stays free.

Credits

World generation is built on cubiomes (MIT). Icons are from Lucide. The site is built with Next.js and Tailwind CSS. Minecraft Tools 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@minecrafttools.wiki or through the contact page.

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

Changelog

  1. Mod pages written from the pack files · v0.11.0
    • New1,553 mod pages rebuilt from the add-on's own files: mob, item and block tables, sky and shader options, world settings, the first commands to run and a short FAQ.
    • ImprovedEach page says which Minecraft version the pack asks for, whether its scripts use Beta APIs, and which vanilla files it replaces, so you can tell what may clash.
    • FixedMike Shader, BSL ZenXveda Shaders and Portal Gun are back, and pages no longer disappear when a pack drops off the catalog feed.
  2. An install guide and 23 more mod pages · v0.10.2
    • NewHow to install Bedrock add-ons: every file type, every platform, switching packs on in your world and fixing failed imports.
    • Improved23 more mod pages with our own About text, Good to know points and update summary; 13 of them are back after dropping off the catalog.
    • ImprovedEvery mod page shows the latest version with a link to the full changelog, tools that go with the pack, and more from the same creator.
  3. Better mod pages · v0.10.1
    • Improved35 mod pages: a new About section, Good to know points, a short summary of the latest update, and links to the tools and guides that go with each pack.
    • FixedMike Visuals, Tree Physics and Colourful OreUI are back, with a link to the author's page.
  4. Markers, ruler and a smarter seed finder · v0.10.0
    • NewSeed map ruler: click points to measure a path (with walk, sprint and Nether times) or close the shape to get its area in blocks and chunks. Press M or use the ruler button.
    • ImprovedMarkers: icons for base, portal, farm, mine, loot and more, a note and a Y level, and a My markers list with search, sorting and distances.
    • NewShare your markers with friends or your SMP as a link, or export and import them as a file.
    • NewOverworld markers show in the Nether at their portal-linked spot (÷ 8), and the other way round.
    • NewSeed history: recently opened seeds on the map and in your library.
    • ImprovedSeed finder: flat land near spawn, spawn height, biome patch size and "at least N" structures (two villages, three witch huts…).
    • ImprovedNearest list: compass directions, hide completed, show more and copy the list.
  5. Beacon calculator, better portal links · v0.9.0
    • NewBeacon calculator: blocks and ingots for 1–4 level pyramids in iron, gold, emerald, diamond or netherite, the powers and range per level, and a stained glass mixer that finds the panes for any beam colour.
    • ImprovedNether portal calculator: a clear build spot, a /execute teleport that works from the other dimension, and links to the same spot on the seed map.
    • ImprovedSeed map: structure and marker popups open the portal calculator with your seed and coordinates filled in.
  6. Servers, rebuilt · v0.8.0
    • ImprovedServers: an interactive list with 24-hour player sparklines, one row per network and a Play button that opens Bedrock servers in Minecraft.
    • NewCompare servers side by side; server pages get 24h, 7-day and 30-day charts and how-to-join steps per platform.
  7. Skins, builds and Xbox tools · v0.7.0
    • NewSkin viewer: look up a Java or Bedrock player, or open a skin file, and view it in 3D; download it as a PNG or a Bedrock skin pack.
    • NewCommunity gallery: share skins and builds, reviewed before they go live.
    • NewXbox tools: XUID lookup and a gamertag checker.
    • NewSign in with Microsoft (Xbox), with your gamertag as your name.
  8. Seed finder, community seeds and 3D · v0.6.0
    • NewSeed finder tabs: Check a seed, survival island seeds and Best seeds pages by category.
    • NewCommunity seeds: share a seed from Check a seed, vote on others, and open any seed on its own page.
    • NewExplore in 3D: the approximate terrain and surface structures around spawn, drawn from the world generator.
    • ImprovedMods: every download button now opens the publisher's own page.
  9. Building guides · v0.5.0
    • NewBuilding guides: houses shown layer by layer in an interactive block viewer, with full material lists.
    • ImprovedThe guides index is paginated.
    • FixedCorrected the copy about End gateways, the ruined portal Nether grid and spawn chunks on 26.3.
  10. Sign in with X · v0.4.1
    • NewSign in with X, linked to your existing account when the confirmed email matches.
  11. New guides every few days · v0.4.0
    • NewGuides now go live on a schedule, a new one every few days.
    • NewGuides on ancient debris Y levels, buried treasure and finding a fortress for a blaze farm.
  12. Sample seeds and Explore this seed · v0.3.1
    • NewHomepage sample seeds: one click to a good-looking map.
    • NewExplore this seed: from the map, open other finders on the same seed, edition and version.
  13. Guides · v0.3.0
    • NewGuides: 20 long-form articles on seeds, structures, farms, ores, the Nether and the End, written from the engine with example seeds you can open on the map.
    • ImprovedFinder and tool pages link to the guides that cover them, and the homepage lists featured guides.
    • ImprovedEvery guide now carries screenshots of the map, its popups and panels and the tools at the seeds it talks about, with captions.
    • FixedStronghold finder: the last two stronghold rings hold 36 and 9 strongholds.
  14. Mods catalog · v0.2.0
    • NewMods: browse Bedrock add-ons, maps, texture packs, skins and scripts with screenshots, ratings and direct .mcpack / .mcworld downloads.
    • NewCategory pages (/mods/maps, /mods/addons, …) with subcategory chips, search and sorting by downloads, rating or freshness.
  15. 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.
  16. 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.
  17. Groundwork · v0.0.2
    • NewDesign system, app shell and catalog pages.
    • NewPWA manifest — add ChunkScout to your home screen.