oneaura's Cart Optimizer

oneaura's Cart Optimizer

A mod that prevent carts from ghosting when you place them.

by
37.6K Downloads
fabricgame-mechanicsoptimizationutility
Configure a Compatible Minecraft Server

About this Mod

oneaura's Cart Optimizer

Overview

oneaura's Cart Optimizer is a mod that optimizes the handling of minecarts by removing the item client-side immediately upon placement. This prevents carts from ghosting (you place the cart, but it still appears to be on your hotbar).

Commands

Commands Usage
/cartoptimizer on Enable the mod.
/cartoptimizer off Disable the mod.
/cartoptimizer debug <on/off> Toggle the [Cart Optimizer] -1 Cart indicator.

Supported Platforms & Versions

Platform Supported Versions
Fabric 1.21.x

Use at your own risk. This mod is still in development. Please report any bugs here.

Available Versions

oneaura's Cart Optimizer V1.0.5release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
April 5, 2026
oneaura's Cart Optimizer V1.0.4release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
March 2, 2026
oneaura's Cart Optimizer V1.0.3release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
February 15, 2026
oneaura's Cart Optimizer V1.0.2release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
February 2, 2026
oneaura's Cart Optimizer V1.0.1release
MC 1.21.11fabric
February 2, 2026

How to Install oneaura's Cart Optimizer on Your Client

1

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

2

Download the Matching File

Choose the oneaura's Cart Optimizer file for fabric and Minecraft 1.21.11.

3

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+9 more)

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does oneaura's Cart Optimizer need to be installed on the Minecraft server?

No. Modrinth marks oneaura's Cart Optimizer as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does oneaura's Cart Optimizer require?

Use a file for fabric and your exact Minecraft version. Supported versions include 1.21.11, 1.21.10, 1.21.9. Files for different loaders are not interchangeable.

oneaura's Cart Optimizer is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.

Minecraft Server for Your Group

oneaura's Cart Optimizer stays on your client. Host a compatible world for your group.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
Client Compatibility Guide
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+2 more