autojoin

Makes the client join to a local server on startup

221 Downloads

fabricutility

Rent Server with this Mod

About this Mod

autojoin

This mod connects the client to a localserver (127.0.0.1:25565)

This mod is useful for making custom clients and launchers.

The mod is Client-side only and for fabric

For example I made this mod to use it in a custom launcher that creates a server and uses mindcraft to make an AI connect to the server, so I used this mod to make the player connect to the server without having to go to multiplayer and adding the server

Credits for the icon:
Server icons created by Freepik - Flaticon

Available Versions

autojoin 1.0-SNAPSHOTrelease

MC 1.21.1fabric

April 24, 2025

How to Install autojoin on Your Server

Order Server

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

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

autojoin 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 (1.21.1). You can switch loaders with one click in the panel.

Is autojoin compatible with fabric?

autojoin officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with autojoin – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if autojoin 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.