Minecraft calculators & generators

Ten free tools for Minecraft players — build templates that don’t fit a square grid, planners that save real levels at the anvil, and references for the things you’d otherwise alt-tab to look up. Everything runs in your browser with no signup, works for Java and Bedrock (differences are flagged in each tool), and nothing you enter leaves your device.

Find the right tool by what you’re doing

Building

The Circle Generator turns any diameter into a block-by-block template with row counts and in-game coordinates; the Sphere Generator does the same for spheres, domes, and ellipsoids, layer by layer, with a diff view that shows only what changes between layers. The Banner Designer previews all six pattern layers live and writes the /give command for you. And before you build on the other side, the Nether Portal Calculator converts coordinates so your portal pair actually links. The circle, sphere, and banner tools are also embeddable on your own site — wikis and server pages can drop them in with one iframe snippet.

Combat & progression

The Enchantment Calculator finds the cheapest anvil combine order before you spend levels; the XP Calculator converts between points and levels so you know what a combine really costs; and the Damage & Armor Calculator shows exactly how much damage you’ll take — and deal — for any armor, enchantment, and weapon matchup.

Reference

The Crafting Recipes reference is a searchable grid for every recipe, the Potion & Brewing Guide maps each potion’s full brewing path, and the Color Codes & Text Generator previews format codes for chat, signs, and server MOTDs.

All 10 tools in this category

Minecraft · Building
Minecraft Circle Generator
Block-by-block circle and oval templates with row counts, coordinates, and a chunk grid.
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Minecraft · Building
Minecraft Sphere Generator
Layer-by-layer sphere, dome, and ellipsoid templates with a diff view and WorldEdit commands.
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Minecraft · Design
Minecraft Banner Designer
Design banners layer by layer with a live preview and ready-to-paste /give commands.
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Minecraft · Calculator
Minecraft Nether Portal Calculator
Overworld ↔ Nether coordinate conversion for portal pairs that actually link.
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Minecraft · Anvil planning
Minecraft Enchantment Calculator
Plan anvil combines for the lowest XP cost before you spend a single level.
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Minecraft · Calculator
Minecraft XP Calculator
XP points ↔ levels, and what any level range really costs.
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Minecraft · Combat
Minecraft Damage & Armor Calculator
Exact damage taken and dealt — armor, Protection, Sharpness, crits, DPS, and hits-to-kill.
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Minecraft · Reference
Minecraft Crafting Recipes
Searchable crafting-grid reference covering every recipe.
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Minecraft · Brewing
Minecraft Potion & Brewing Guide
Every potion’s brewing path, ingredients, and timings.
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Minecraft · Text & Colors
Minecraft Color Codes & Text Generator
Format codes and hex colors for chat, signs, and MOTDs, with live preview.
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Frequently asked questions

Do these tools work for both Java and Bedrock?

Yes. Where the editions differ — banner patterns, enchantment behavior, command syntax — the tool has an edition switch or flags the difference inline. Build geometry (circles, spheres, portals) is identical in both editions.

Can I embed these tools on my own site?

The Circle Generator, Sphere Generator, and Banner Designer are free to embed on any site — each has an “Embed this tool” button next to its share controls that copies a ready-made iframe snippet. The only condition is that the credit link in the snippet stays in place.

Do I need an account, or does anything get uploaded?

No account, no upload. Every tool runs entirely in your browser; designs and settings are encoded in shareable URLs rather than stored on a server, so a bookmark or a pasted link is your save file.