How to make a modded Minecraft server (Forge, Fabric, modpacks)

To make a modded server, pick a loader (Forge, NeoForge or Fabric), install the same Minecraft version and mods that players use, and put the mods in the server's mods folder. Versions must match exactly.

Steps

1. Choose a modpack or a list of mods and note the Minecraft version and loader.
2. Install the matching server loader.
3. Upload mods to the mods folder using the Files tab.
4. Accept the EULA and start the server.
5. Give players the same mod list or the same modpack.

Server and client mods

Some mods are client-only, such as minimap or shaders, and can crash a server. Read the mod page for server compatibility.

Memory

Modpacks need more RAM than vanilla. Check the pack's recommended amount.

Troubleshooting

1. Read the latest log in the Console or logs folder.
2. Look for the mod named near the first Exception.
3. Remove or update that mod.

Common mistakes

• Mixing mod versions with the wrong Minecraft version.
• Uploading client-only mods.
• Forgetting dependencies.
• Not backing up before adding mods.

Our existing guide on installing Forge and Fabric mods covers the loader steps in more detail.