MoulberrysTweaks

MoulberrysTweaks

A collection of client-side tweaks, primarily useful for developers and creators

by
1.6K Downloads
fabricutility
Rent Server with this Mod

Screenshots

Vanishing players
Component Viewer and Packet Viewer

About this Mod

A collection of client-side tweaks, primarily useful for developers and creators.

Note: Most features are disabled by default. Run /moulberrystweaks to access the config and enable the features that you want.

Video showcase (1.0.2)

Item Component & Inventory Packet viewers

Item Component and Inventory Packet viewers

Features

  • Gameplay
    • Confirm Disconnect Button
      • Adds a confirmation when disconnecting from a server to avoid accidental disconnects
    • Attack Indicator Fix (MC-255058)
      • Makes the attack indicator bar show the correct value visually
    • Prevent Server Closing Pause Screen
      • Prevents the server from closing your pause screen and other sub-screens
  • Resource Loading Overlay
    • Fast Loading Overlay
      • Speeds up the resource loading overlay by removing the fade out animation
    • Transparent Loading Overlay
      • Removes the background from the resource loading overlay
  • Resource Pack
    • Automatic Pack Reload
      • Automatically reloads resourcepacks when a file in the folder is changed
    • Disable Warnings
      • Disables the warning screen when toggling resourcepacks with the wrong version
  • Debugging
    • Log Packet Exceptions
      • Prints the stacktrace of a packet exception, useful for debugging
    • Ignore Narrator Error
      • If the narrator can't be loaded, stop the game from complaining about it
    • Send Debug Movement
      • Sends debug movement data to the server every tick. Useful for anticheat developers (moulberrystweaks:debug_movement_data)
    • Item Component Widget
      • Keybind to open a widget showing item component data
    • Packet Debug Widget
      • Keybind to open a widget showing incoming and outgoing inventory packets. Useful for server developers
  • Commands
    • Auto Vanish Players
      • Command to automatically vanish players that are nearby. Useful for parkour servers so you can see where to go
    • Dump Held Item Json
      • Prints the serialized json of the item you are holding. Useful for developers
    • Generate Font Width Table
      • Writes a file containing the width of every font character. Useful for developers of external tools/software
    • Dump Player Attributes
      • Dumps the entity attributes of the player entity. Useful for developers
    • Debug Render
      • Allows hiding/clearing debug renders sent by the server using the debug_render protocol. Useful for developers

Additional protocols

See GitHub repository for implementations

Debug Render

This protocol allows servers to render custom shapes on the client

  • debugrender:add
  • debugrender:clear_namespace
  • debugrender:clear
  • debugrender:remove

Debug Movement

This protocol sends debug movement data to the server. Useful for anticheat developers

  • moulberrystweaks:debug_movement_data

Available Versions

MoulberrysTweaks 1.0.4release
MC 1.21.6, 1.21.7, 1.21.8fabric
August 21, 2025
MoulberrysTweaks 1.0.4release
MC 1.21.5fabric
August 21, 2025
MoulberrysTweaks 1.0.3release
MC 1.21.5fabric
July 20, 2025

How to Install MoulberrysTweaks on Your Server

1

Order Server

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

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.8, 1.21.7, 1.21.6 (+1 more)

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

MoulberrysTweaks 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 (1.21.8). You can switch loaders with one click in the panel.

Is MoulberrysTweaks compatible with fabric?

MoulberrysTweaks officially supports fabric for Minecraft 1.21.8, 1.21.7, 1.21.6. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with MoulberrysTweaks – how to optimize performance?

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

Rent Modded Server

Install MoulberrysTweaks with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.21.81.21.71.21.61.21.5