ModsFinder

What's That Slot?

by Gegy

With What's That Slot?, the item slot under the cursor shows which items it can accept, which helps in modded screens where placement rules are unclear.

FabricForgeNeoForgeClient-side onlyGNU Lesser General Public License v3.0 onlyOpen source1.16.5 – 1.21.5

What it does

The mod highlights the items that a slot in the current screen can hold. This is most useful in modded interfaces, where the placement rules of a container are not obvious from its layout. Clicking a matching item in the query window moves it from the player inventory into the open container. Only the client needs the mod, so it works on single-player worlds and on servers that do not run it.

Key features

  1. Slot placement highlight

    Slots that accept the item being inspected are highlighted, so valid targets stand out in the open screen.

  2. Query window

    A query window lists the items that fit the open container, and matching items can be picked from the inventory.

  3. Quick transfer

    Clicking a relevant item in the query window moves it straight from the inventory into the container.

Compatibility

Latest build for each game version and loader.

1.21.x4 of 4 versions with builds
1.21.51.3.8+1.21.5Not available1.3.8+1.21.5
1.21.41.3.7+1.21.4Not available1.3.7+1.21.4
1.21.11.3.6+1.211.3.6+1.211.3.6+1.21
1.211.3.6+1.211.3.6+1.211.3.6+1.21
1.20.x4 of 4 versions with builds
1.20.61.3.6+1.21Not availableNot available
1.20.51.3.6+1.21Not availableNot available
1.20.41.3.6+1.211.3.5+1.20.41.3.5+1.20.4
1.20.1v1.3.4+1.20.11.3.4Not available
1.19.x4 of 4 versions with builds
1.19.4v1.3.3+1.19.4v1.3.3+1.19.4Not available
1.19.3v1.3.2+1.19.3v1.3.2+1.19.3Not available
1.19.21.3.1+1.19.2-fabric1.3.1+1.19.2-forgeNot available
1.191.3.0+1.19-fabric1.3.0+1.19-forgeNot available
1.18.x3 of 3 versions with builds
1.16.x1 of 1 version with builds
ReleaseBetaAlphaNot available

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

Questions

Does What's That Slot? need to be installed on the server?

No. The mod is client-side only, so the server does not need to run it for the client to use it.

Which loaders does What's That Slot? support?

Fabric, Forge and NeoForge. The latest Fabric and NeoForge files target 1.21.5, and the latest Forge file targets 1.21.1.

In the catalog

What's That Slot? is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 15,307 mods support Minecraft 1.21.5.

Utility mods36,990Fabric modsMods for 1.21.515,307

More from Gegy

All projects
Terrarium1.12.2Colored Lights1.17 – 1.18.2

Similar mods

Mod Menu1.14.4 – 26.3Reese's Sodium Options1.16.5 – 26.3Jade 🔍1.16.4 – 26.3Zoomify (Zoom)1.18 – 26.3FancyMenu1.12 – 26.3Indium1.16.5 – 1.21.1

What the author says

This is particularly useful in modded environments where it may not be clear what items can be placed in a modded GUI. This mod works client-only, so it does not need to be installed on the server to run!
Gegy, on the Modrinth page

Official listing

Owner
Gegy
Published
2022-05-22
Updated on Modrinth
2025-03-28
Facts verified
2026-10-15

Tags

Utility
Open on ModrinthCompare