# How to Pre-Generate a World on a Minecraft Fabric Server

> Learn how to efficiently pre-generate your Minecraft Fabric server world to improve gameplay and reduce lag.

Source: https://www.beaconhosting.org/knowledgebase/how-to-pre-generate-a-world-on-a-minecraft-fabric-server
Category: Minecraft
Last updated: 2026-09-09

# Pre-generating a world on your Minecraft Fabric server can significantly enhance player experience by reducing lag caused by world generation during gameplay. This guide will walk you through pre-generating your server's world using Fabric-compatible mods.

> **[INFO]** Fabric servers use **mods**, not plugins. Plugins are for Paper/Spigot.

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## **Step 1: Install a world pre-generation mod**

Install a Fabric-compatible mod such as **Chunky** or another chunk pre-generator that supports your Minecraft version.

**Option A — Package Manager (recommended)**

1. Log in, open **Your Servers**, and select your Fabric server
2. Go to **Package Manager** → **Install Package**
3. Browse for the mod (often under **Mods**) and install it
4. Check **View Queue** if the install does not finish immediately

**Option B — Manual upload**

1. Go to **Files** → `mods`
2. Upload the mod `.jar` file
3. Or upload via **SFTP** from **Settings → SFTP Access**

Restart the server from **Console** after adding or updating mods.

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## **Step 2: Configure pre-generation settings**

Most pre-gen mods are configured with in-game or console commands, not a separate panel screen.

With the server **online**, open **Console** and use the commands from your mod’s documentation. For **Chunky**, examples include setting a center, radius, and starting generation (for example `chunky center`, `chunky radius`, and `chunky start`).

Adjust the radius based on how far players are likely to explore and how much RAM your plan has.

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## **Step 3: Start and monitor pre-generation**

Run the mod’s start command from **Console** (you need **CONTROL_CONSOLE** permission). Watch **Console** output until generation completes.

Pre-generation can take a long time for large radii. Schedule it during low-traffic periods if players are already on the server.

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## **Additional Tips**

- Keep Fabric, your mods, and Minecraft version compatible — update through **Package Manager** or by replacing jars in **Files** → `mods`
- Create a backup from **Backups** before large world changes
- Open a support ticket at [www.beaconhosting.org/billing/tickets](https://www.beaconhosting.org/billing/tickets) if installs fail or the server will not start after adding a mod