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ChunkPreLoader999

ChunkPreLoader999 is a powerful, performance-focused Minecraft plugin that allows server administrators to pre-load and maintain loaded specific areas of their world.
by Erik9994857
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Updated Jun 30, 2026
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Admin Tools General Mechanics Miscellaneous World Editing and Management
ChunkPreLoader999 is a powerful and easy-to-use plugin designed to combat lag and CPU spikes caused by chunk generation during gameplay. By pre-loading and saving chunks, it ensures that your server's performance remains optimal, allowing players to explore vast worlds without frustrating interruptions. You can define specific areas to be pre-loaded, either as a rectangle or a radius around a central point. The plugin operates asynchronously to prevent any impact on server performance during the loading process and provides real-time progress in the console. You can also configure which worlds the plugin should be active in, giving you full control over its operation.

## Commands

The main command is `/chunkpreloader`, which can also be accessed with the alias `/cpl`.

### `/cpl start <x1,z1> <x2,z2> <name>`

Pre-loads and saves a rectangular area of chunks. The chunks within this area will be force-loaded, meaning they will not unload until you use the `unload` command.

*   `<x1,z1>`: The coordinates of the first corner of the rectangle.
*   `<x2,z2>`: The coordinates of the second corner of the rectangle.
*   `<name>`: A unique name to identify this pre-loaded area.

### `/cpl unload <name>`

Unloads a previously pre-loaded area and removes it from the data file. This will allow the chunks in the area to unload naturally.

*   `<name>`: The name of the area to unload.

### `/cpl center <x,z>`

Sets a central point for radius-based pre-loading. This location is used by the `radius` command.

*   `<x,z>`: The coordinates for the center point.

### `/cpl radius <number>`

Pre-loads and saves a circular area of chunks around the center point defined by the `center` command. The radius is specified in chunks.

*   `<number>`: The radius of chunks to load, from 1 to 100,000.
ChunkPreLoader999-1.0.1 Performance And Commands Update
MC 1.21.2, 1.21, 1.21.3, 1.21.8, 1.21.4, 1.21.5, 1.21.5-Snapshot, 1.21.7, 1.21.1, 1.21.6, 1.21.9, 1.21.10
Release 2025-11-23 Get
ChunkPreLoader999-1.0.0.jar
MC 1.21.2, 1.21, 1.21.3, 1.21.10, 1.21.5, 1.21.8, 1.21.4, 1.21.7, 1.21.1, 1.21.5-Snapshot, 1.21.6, 1.21.9
Release 2025-10-15 Get

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