Bossbar Config

A basic bossbar config that allows you to resize and change the position of the bossbar in Minecraft.

228 Downloads

fabricutility

Rent Server with this Mod

About this Mod

BossBar Config

A simple client-side mod that lets you resize and reposition the boss bar HUD to wherever you want on your screen.

Features

Scale the boss bar up or down (0.1x to 3.0x)
Move it around using X & Y offsets
Mod Menu config screen
Commands for quick changes without opening the menu

Commands

/bossbar scale <0.1–3.0> — resize the boss bar
/bossbar offset <x> <y> — reposition it (negative x = left, positive x = right)
/bossbar reset — restore defaults

Requirements

Fabric Loader
Fabric API
Mod Menu (optional, for the config screen)

Client-side only — safe to use on any server.

Available Versions

Bossbar Config 1.0.0release

MC 1.21.10, 1.21.11fabric

March 25, 2026

How to Install Bossbar Config 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 (1.21.11).

Install Mod

Open the mod browser in the dashboard and search for "Bossbar Config". 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

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Bossbar Config 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 Bossbar Config compatible with fabric?

Bossbar Config officially supports fabric for Minecraft 1.21.11, 1.21.10. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Bossbar Config – how to optimize performance?

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