ModsFinder

Inventory Size Attributes

by TheRedBrain

Inventory Size Attributes lets server owners set how many inventory slots a player can use through entity attributes, with the default size controlled in the server config.

FabricClient and serverMIT LicenseOpen source1.21.1 – 26.1.2

What it does

Two new entity attributes control how many player inventory slots are accessible, and the hotbar size can be changed the same way. The default inventory size is set through the server config. Fabric API, Fzzy Config and Slot Customization API are required, and the mod is released under the MIT License as open source for 26.1.2 and the 1.21.1 – 26.1.2 range.

Key features

  1. Slot count attribute

    An entity attribute sets how many player inventory slots are accessible, so the count can differ between players.

  2. Hotbar size attribute

    A second attribute changes the size of the player's hotbar, independently of the main inventory.

  3. Server config default

    The starting inventory size is changed through the server config, and the two new attributes are applied from there.

Compatibility

Latest build for each game version and loader.

26.1.23.0.0
26.1.13.0.0
26.13.0.0
1.21.112.1.0
1.21.102.0.0
1.21.11.4.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 3

Slot Customization APIA small API for mods to dynamically modify inventory slots. Allows changing the position, disabling/enabling slots and adds tooltips for empty slots.
Required
Fzzy ConfigConfig API with automatic GUIs, powerful validation options, server-client sync, and more!
Required
Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

How it compares

Full comparison

Random Sizes is a Fabric mod for 1.21.5 – 1.21.11 under All rights reserved and is not open source. Player Size Changer covers Fabric, Forge, NeoForge and Quilt for 1.21.4 – 26.3 under the MIT License, and only the server needs it.

ModLoadersGame versionsEnvironmentUpdated
Inventory Size AttributesFabric1.21.1 – 26.1.2Client and server2026-04-21
Random SizesFabric1.21.5 – 1.21.11Client and server2025-12-29
Player Size ChangerFabric, Forge, NeoForge and Quilt1.21.4 – 26.3Server required, client optional2026-07-04

Questions

Does Inventory Size Attributes need Fzzy Config?

Yes. Fzzy Config is one of the three required dependencies, alongside Fabric API and Slot Customization API.

Do players need the mod installed?

Yes. Servers that run it need every player to install it too.

In the catalog

Inventory Size Attributes is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 15,189 mods support Minecraft 26.1.2.

Storage mods4,058Fabric modsMods for 26.1.215,189

More from TheRedBrain

All projects
Shield API1.20.1 – 1.21.4Bundle API1.21 – 26.3Slot Customization API1.20.1 – 26.1.2Better Combat Extension1.20.1 – 1.21.1RPG Inventory1.20.1 – 26.1.2Resource Bar API1.20.1 – 26.1.2

Similar mods

Mouse Tweaksb1.7.3 – 26.3Inventory Profiles Next1.14.1 – 26.3Clumps1.10.2 – 26.3Shulker Box Tooltip1.16.5 – 26.3Traveler's Backpack1.12.2 – 26.3Tom's Simple Storage Mod1.15.2 – 26.3

What the author says

This mod allows changing the size of the player inventory and of the hotbar. By default the inventory size is not changed, this can be done via the server config or with two new entity attributes.
TheRedBrain, on the Modrinth page

Official listing

Owner
TheRedBrain
Published
2024-08-30
Updated on Modrinth
2026-04-21
Facts verified
2026-10-15

Tags

CursedLibraryStorageAdventure
Open on ModrinthCompare