Inventory Size Attributes

Adds entity attributes that control how many player inventory slots are accessible.

2.8K Downloads

fabriccursedlibrarystorage

Rent Server with this Mod

About this Mod

Inventory Size Attributes

This mod allows changing the size of the player inventory and of the hotbar.

This mod does not change the maximum amount of inventory or hotbar slots!

By default the inventory size is not changed, this can be done via the server config or with two new entity attributes.

Details can be found in the readme file.

Available Versions

3.0.0release

MC 26.1, 26.1.1, 26.1.2fabric

April 21, 2026

1.4.0release

MC 1.21.1fabric

April 13, 2026

2.1.0release

MC 1.21.11fabric

March 2, 2026

2.0.0release

MC 1.21.10fabric

October 23, 2025

1.3.0release

MC 1.21.1fabric

August 26, 2025

How to Install Inventory Size Attributes 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 (26.1.2).

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.2, 26.1.1, 26.1 (+3 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Inventory Size Attributes 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 (26.1.2). You can switch loaders with one click in the panel.

Is Inventory Size Attributes compatible with fabric?

Inventory Size Attributes officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Inventory Size Attributes – how to optimize performance?

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