Minecraft CompanionJava Toolkit
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Minecraft Companion

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Minecraft Companion

TOOLKIT · JAVA

Five working tools from the spec, in one place. All maths verified against the Minecraft Wiki. Not affiliated with or endorsed by Mojang or Microsoft.

1 · Choose your item

2 · Add enchantment books

    Cheapest plan

    Add at least one book, then run the optimiser.

    How it reads: each step combines the left (target) item with a sacrifice book and shows that step's level cost. The prior-work penalty grows as 2ⁿ−1 with every anvil use, so the optimiser pairs books into a balanced tree instead of stacking them one-by-one. Java blocks any single step of 40+ levels ("Too Expensive!"). Multipliers reflect the long-standing Java table; verify per version before shipping. Item-to-item combining and Bedrock's increment costs are out of scope here.

    Beacon pyramid

    Range is a square radius of 10 + 10 × tier blocks horizontally and downward, plus the dimension height upward. Material never changes range or effects — only price. Every block is crafted from 9 ingots/gems.

    Materials & powers

    Experience needed

    Lvl 16 = 352 XP total Lvl 30 = 1,395 XP total Lvl 50 = 5,345 XP total

    Java uses three tiers: a level-up costs 2L+7 (0–15), 5L−38 (16–30), then 9L−158 (31+). Level 30 is the enchanting-table cap, which is why most players farm to 30 and no further.

    Result

    Enter levels, then calculate.

    Shape & dimensions

    Boxes, walls, floors and stepped pyramids are exact. Circles and spheres are voxel approximations (a block counts if its centre is within the radius) — handy for planning, but eyeball the curve in-game.

    Materials

    Pick a shape and dimensions, then calculate.

    What are you storing?

    A chest and a barrel each hold 27 slots; a double chest holds 54. A shulker box is 27 slots and stays packed when moved. Counts below show how many of each container fully holds your items.

    Containers needed

    Enter a quantity, then plan.

    Choose a potion

    Every brew runs ~20 s in a blaze-powder-fuelled stand and treats all three bottles at once. Redstone and glowstone are mutually exclusive — a potion is either extended or Level II, never both.

    Brewing chain

    Pick a potion, then show the steps.

    Smelting job

    Items-smelted-per-fuel is identical in every furnace type — blast furnaces and smokers just finish in half the time while burning fuel twice as fast. A lava bucket returns an empty bucket.

    Result

    Enter a job, then calculate.

    Portal coordinates

    Horizontal coordinates scale 8:1 between dimensions (Overworld ÷ 8 → Nether, Nether × 8 → Overworld); Y stays the same. Build the destination portal at these coordinates and light it manually so the game links the pair instead of generating a new portal.

    Where to build

    Enter coordinates, then calculate.

    Minecraft Companion

    GUIDE & ENCYCLOPEDIA · JAVA

    A searchable reference for blocks, mobs, items, enchantments, potions, effects, food, and full written guides. Information reflects current Java Edition. Not affiliated with or endorsed by Mojang or Microsoft.

    All game data is presented in original wording for reference and may vary slightly by version and edition; verify version-specific values in-game. "Minecraft" is a trademark of Mojang Studios / Microsoft. This is an unofficial fan reference and is not affiliated with, endorsed by, or associated with Mojang or Microsoft.