Fixable Slots
by canitzp
Fixable Slots lets players lock inventory slots, including the hotbar, so that only a chosen item can be placed in them.
What it does
A slot bound through Fixable Slots accepts only the item it was set to hold, which resembles the Factorio approach of dedicating a slot to one item. Four matching modes control how strict the lock is: exact mode accepts only the same item with the same metadata and NBT, fuzzy meta mode ignores damage or metadata, fuzzy NBT ignores NBT data, and fuzzy strict ignores both NBT and metadata. A tag mode accepts any item carrying the same tag, and the applied tag can cycle through to change the slot type.
The mod requires Fabric API and is published for Fabric and Forge. Its files cover 1.12.2, 1.16.5 and 1.17, with the 2.1.0 Fabric build and the 1.1.1 Forge build as the latest releases, both dated 2025-09-24. It runs on client and server, so the server and every player need it, and it is released under All rights reserved, so it is not open source.
Key features
Slot binding
A player can bind an inventory slot, including hotbar slots, to one item so that other items cannot be placed there.
Exact matching
Exact mode accepts only items with the same ID, metadata and NBT as the bound item.
Fuzzy matching modes
Fuzzy modes relax the check by ignoring metadata, NBT or both, so variants of an item fit the same slot.
Tag-based slots
Tag mode accepts every item that carries the applied tag, and cycling through tags changes the slot type.
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 1
Use cases
Who it’s for: Players who arrange a fixed hotbar or inventory layout, and server owners and modpack authors who want to control how items are placed. Because the mod runs on client and server, both sides need it for the locks to work.
How it compares
NBTIFY is a client-side only mod for Fabric and Forge, open source under the MIT License and published for 1.16.5 – 1.17.1, so only the client needs it. Inventory Locked is a client and server mod for Fabric, open source under the MIT License and built for 1.20.1, which covers slot locking with the same environment. Fuzzy Autocomplete is open source under the GNU Lesser General Public License v3.0 or later, is a Fabric mod for 1.20 – 26.3, and needs the client but leaves the server optional.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Fixable Slots | Fabric and Forge | 1.12.2 – 1.17 | Client and server | 2025-09-24 |
| NBTIFY | Fabric and Forge | 1.16.5 – 1.17.1 | Client-side only | 2024-07-22 |
| Inventory Locked | Fabric | 1.20.1 | Client and server | 2026-03-15 |
| Fuzzy Autocomplete | Fabric | 1.20 – 26.3 | Client required, server optional | 2026-06-17 |
Questions
Does Fixable Slots need Fabric API?
Does the server need Fixable Slots?
Which game versions does Fixable Slots support?
In the catalog
Fixable Slots is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 2,801 mods support Minecraft 1.17.
More from canitzp
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What the author says
With the help of Fixable Slots, your loved items or blocks are at their right places every time. Fixable Slots adds the ability to lock your player inventory slots, including hotbar, so that only the stated items can go in there. There are several filter, to keep it as practical as possible. 1. Exact mode: Only the…
Official listing
- Modrinth page
- modrinth.com/mod/fixable-slots
- Owner
- canitzp
- Published
- 2025-09-24
- Updated on Modrinth
- 2025-09-24
- Facts verified
- 2026-10-15