AnvilPilot — Minecraft Enchantment Calculator

AnvilPilot is a free, browser-based Minecraft Enchantment Calculator for Java Edition 26.3. It helps Survival players plan a lower-cost anvil work order before they spend experience levels at the anvil. Instead of guessing which books to combine first, build a clear left-slot/right-slot plan, see each step’s XP cost, and spot combinations that would hit the Survival “Too Expensive” wall (40 levels or more in a single step).

Enchantment order matters because every anvil use adds a prior-work penalty. The penalty grows as 2ⁿ − 1, so the same set of enchanted books can cost far more—or become impossible in Survival—if combined in a poor order. AnvilPilot searches combination trees for your chosen item and materials, then turns the result into a slot-by-slot work order you can follow at the anvil.

Quick Plan assumes fresh enchanted books. Inventory Plan lets you enter real prior-work values and mixed enchanted books from your inventory. Each result lists the left item, right sacrifice, level cost, and resulting item. With up to eight sacrifices, Exact Optimal search proves no plan ranks better under the selected objective and tie-breakers. For nine to 32 sacrifices, deterministic bounded search returns a Best Found plan without claiming mathematical optimality.

The ruleset is scoped to Minecraft Java Edition 26.3 costs, compatibility, prior work, and mixed-book behavior across 26 item groups and 43 enchantments. Existing Java 26.2 share links and saved drafts keep their original ruleset. AnvilPilot does not calculate Bedrock rules, equipment sacrifices, renaming, material repairs, durability merging, mods, datapacks, or snapshots.

Calculations run locally in the browser. Share Link stores validated input in the URL hash so you can send a plan to a friend without creating a server-side record. When a mixed book is applied to an item, inapplicable enchantments are discarded and surfaced as a warning. AnvilPilot is made by VastPace (Made in China, founded 2026), is free to use, requires no download, and is an unofficial community planning aid—not an official Minecraft product and not associated with Mojang or Microsoft.