LY's Mapmakers Toolkit

LY's Mapmakers Toolkit

Mapmaker Toolkit is a client-side Fabric mod for creating, editing, and visualizing command-style areas in real time. It includes a wand selector, local area library, in-world previews, and quick copy/teleport tools.

by
185 Downloads
fabricutility
Rent Server with this Mod

Screenshots

Manual Area Editor
Visual of selection border
Library of saved areas
Detection when inside the shown Area
No detection outside of shown area

About this Mod

Mapmaker Toolkit

Mapmaker Toolkit is a client-side utility mod for Minecraft mapmakers and command creators. It helps you create, visualize, edit, and manage command-style areas directly in the world without placing blocks or constantly checking coordinates.

Have you ever had problems setting up coordinates for detecting players inside an area? Or lost previously saved areas and had to recreate them again? With Mapmaker Toolkit this workflow becomes fast, visual, and easy to manage.

The mod renders selector-style areas based on the coordinates:

x, y, z, dx, dy, dz

These areas are displayed as 3D preview boxes in the world with outlines, optional fill, origin markers, and floating labels that always face the player.

All visualization is client-side only, meaning your world remains completely vanilla-compatible. Players without the mod will not see any overlays.


Core Features

Area Preview

  • Live 3D preview of areas directly in the world
  • Optional fill rendering
  • Corner markers and origin marker
  • Border color blinks when an entity enters the area
  • Floating name label for each area

Area Library

  • Save multiple areas locally
  • Stored per player in a config file
  • Rename, copy, delete, and teleport to areas
  • Easily manage large collections of detection zones

Wand Selection

The mod includes a special wand for selecting areas.

Left click a block → sets the first corner
Right click a block → sets the second corner

Once two points are selected, the mod automatically generates a preview area box.

You can then save it directly into the library.

Fast Editing

Look at an area and press K to instantly open the editor.

From there you can:

  • rename the area
  • change origin and offsets
  • toggle outline or fill
  • teleport to the area
  • copy the selector format

HUD Toggle

Press J to toggle area previews on or off.

A small HUD indicator shows the current preview state.


Commands

/tk wand

Gives you the Toolkit Area Select wand.

Use it to select two corners in the world to generate a preview area.


/tk wsave

Saves the current wand preview directly into the area library.

This is useful for quickly capturing areas without opening the UI.

Quick Save Shortcut:

If you are holding the wand you can also hold Shift and Right Click on the preview area to instantly:

  • save the current preview area
  • automatically start creating a new area

This allows very fast area creation when defining multiple zones.


/tk import

Imports an area from text.

Supported formats:

x y z
x y z dx dy dz
[x=...,y=...,z=...,dx=...,dy=...,dz=...]

This makes it very easy to import existing command areas from datapacks or command blocks.


/tk export

Copies the currently selected area to your clipboard in selector format.

Example output:

[x=100,y=64,z=-30,dx=10,dy=5,dz=10]

You can paste this directly into commands such as:

execute as @a[x=100,y=64,z=-30,dx=10,dy=5,dz=10] run say Player detected

/tk tp

Teleports you to the center of a saved area.

Helpful when debugging datapacks or testing detection zones.


/tk list

Shows the number of saved areas and the first entries from your library.


Quick Tutorial

1. Create Area

  1. Run /tk wand
  2. Left click a block (first corner)
  3. Right click another block (second corner)
  4. Preview box appears

You now have two ways to save it:

Option A (command):

  1. Run /tk wsave

Option B (fast method):

  1. Hold Shift + Right Click on the preview area with the wand

This instantly saves the area and automatically lets you start creating a new one.

The area is now stored in your library.


2. Use the area in commands

Open the editor or use /tk export to copy the selector.

Example command:

execute as @a[x=100,y=64,z=-30,dx=10,dy=5,dz=10] run say Player inside area

3. Import an existing command area

If you already have an area used in commands, you can import it.

Example selector:

[x=200,y=70,z=-40,dx=20,dy=6,dz=15]

Open the mod UI → Add new area to library → paste the selector.

The mod will automatically create a visual preview box for that area.

This means you can easily integrate Mapmaker Toolkit into existing datapacks or maps without rebuilding your areas.


Performance

The mod is designed to remain lightweight even with many saved areas.

  • Only the nearest 100 areas are rendered
  • Distance culling is applied
  • Maximum render range is limited

This keeps performance stable even in large maps.


Compatibility

  • Client-side mod
  • Does not modify world data
  • Does not require server installation for visualization
  • Areas are stored locally in the mod configuration

Mapmaker Toolkit focuses on making area creation, debugging, and command-based detection zones significantly easier for mapmakers and datapack developers.

Available Versions

LY's Mapmakers Toolkit 0.1.0+mc1.21release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
March 6, 2026
LY's Mapmakers Toolkit 0.1.0+mc1.21.1release
MC 1.21.1fabric
March 6, 2026
LY's Mapmakers Toolkit 0.1.0+mc1.20.6release
MC 1.20.6fabric
March 6, 2026
LY's Mapmakers Toolkit 0.1.0+mc1.20.5release
MC 1.20.5fabric
March 6, 2026
LY's Mapmakers Toolkit 0.1.0+mc1.20.4release
MC 1.20.4fabric
March 6, 2026

How to Install LY's Mapmakers Toolkit on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "LY's Mapmakers Toolkit". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+15 more)

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

LY's Mapmakers Toolkit server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is LY's Mapmakers Toolkit compatible with fabric?

LY's Mapmakers Toolkit officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with LY's Mapmakers Toolkit – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if LY's Mapmakers Toolkit consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install LY's Mapmakers Toolkit with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+8 more