Reserved Slots
Reserve Slots lets players lock specific inventory slots to one item type, so tools, food and building blocks keep their places.
What it does
Players designate a slot for an item type, and that slot shows a darkened background with a padlock icon. A ghost preview of the reserved item appears in the empty slot, so the intended contents are visible at a glance. Reserved slots cover the main 36 inventory slots, including the hotbar, and can also hold armor or offhand items.
Reserved slots carry over between worlds, while each world keeps its own independent slot setup. The mod runs on the client, and on a server it adds multiplayer support, so it works in multiplayer as well as single-player. Requires Fabric API and Mod Menu. The code is open source under the Apache License 2.0, and the latest Fabric build is 0.3.9 for 26.1.2, with files covering 1.21.11 – 26.1.2.
Key features
Item-specific reserved slots
A slot can be reserved for one item type, so the same item always goes to the same place.
Padlock and darkened background
Locked slots are marked with a padlock icon and a darkened background, so they stand apart from free slots.
Ghost item preview
An empty reserved slot shows a faint preview of the item it is meant to hold.
Hotbar and armor coverage
Reservations work on the hotbar and the main inventory, and can extend to armor and offhand slots.
Options and keybinding
Reserved Slots is configured under Options Controls, and a key press over a reserved slot clears it.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Organizing tools and food
Players keep a fixed hotbar layout, with pickaxes, food and building blocks each in a reserved slot.
Multiplayer inventories
Players on a server can reserve slots in their own inventories, which the server does not need to configure.
Who it’s for: Players who want a fixed inventory layout in single-player or multiplayer worlds, and anyone who sorts many item types by hand.
How it compares
Hotbar Config is client-side only and is published for Fabric 1.21.11, with no open source license. Simply Sorted is client and server, published for Fabric 1.21.1, and not open source, so it needs the server to run. Reserved Slots works on either side, and neither needs it; it is open source under the Apache License 2.0 and covers 1.21.11 – 26.1.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Reserved Slots | Fabric | 1.21.11 – 26.1.2 | Client or server, optional | 2026-05-26 |
| Hotbar Config | Fabric | 1.21.11 | Client-side only | 2026-03-22 |
| Simply Sorted | Fabric | 1.21.1 | Client and server | 2026-09-01 |
Questions
Does Reserved Slots need Fabric API and Mod Menu?
Does a server need Reserved Slots installed?
Do reserved slots stay when the world is changed?
In the catalog
Reserved Slots is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 15,189 mods support Minecraft 26.1.2.
Similar mods
What the author says
Keep your inventory organized! Reserve and lock slots for specific items. Reserve Slots is a client-side Fabric mod that lets you designate inventory slots for specific items, ensuring they always go to the same place. Perfect for keeping your tools, food, and building blocks organized!
Official listing
- Modrinth page
- modrinth.com/mod/reserved-slots
- Owner
- marthinusbosman
- Published
- 2026-02-15
- Updated on Modrinth
- 2026-05-26
- Facts verified
- 2026-10-15