LT-SlotLock
by LordTricker
LT-SlotLock lets players lock individual inventory slots and item frames so their contents cannot be moved or removed by accident.
What it does
Locking is toggled per slot in the player's inventory, and item frames can be locked the same way. A locked slot keeps its item in place while the player works with the rest of the inventory, which suits players who keep tools, food or key items in fixed positions.
Settings are changed on a dedicated screen in the game's options, and client-side commands expose the same options and mod information from the chat. Changes are written to a configuration file when the settings screen closes, so they persist between sessions. LT-SlotLock runs on Fabric for game versions 1.18.2 – 1.21.10, and it is released under the MIT License as open source.
Key features
Slot locking
Individual inventory slots can be toggled as locked, keeping their items in place.
Item frame locking
Item frames can be toggled as locked, so their contents stay where the player placed them.
Settings screen
A dedicated screen in the game options lets players adjust locking behavior without editing files.
Automatic saving
Settings are written to a configuration file as soon as the settings screen is closed.
Client-side commands
Commands give quick access to the mod's options and information from the chat window.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x10 of 10 versions with builds
1.20.x4 of 4 versions with builds
1.19.x2 of 2 versions with builds
1.18.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Protecting key items
A player can lock the slot holding a specific tool or food so it stays put during crafting or item sorting.
Securing item frames
Locked item frames keep displayed items from being removed by accident while the player builds a display.
Who it’s for: Players who want fixed inventory positions in single-player or on multiplayer servers that allow the mod on the client. Because it is client-side only, server owners do not need to install anything.
How it compares
InventoryManager is a Fabric client mod released under the MIT License, covering game versions 1.21 – 26.3, and it is not open source. Through Item Frame is also client-side only on Fabric, but it is released under the Creative Commons Attribution Non Commercial 4.0 license and covers 1.18 – 26.1.2. LT-SlotLock covers 1.18.2 – 1.21.10 and focuses on locking slots and item frames rather than managing inventory layout.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| LT-SlotLock | Fabric | 1.18.2 – 1.21.10 | Client-side only | 2025-12-22 |
| InventoryManager | Fabric | 1.21 – 26.3 | Client-side only | 2026-09-18 |
| Through Item Frame | Fabric | 1.18 – 26.1.2 | Client-side only | 2026-04-14 |
Questions
Does LT-SlotLock need to be installed on the server?
Which loader does LT-SlotLock use?
Are the settings kept after the game closes?
In the catalog
LT-SlotLock is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 15,569 mods support Minecraft 1.21.10.
More from LordTricker
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/lt-slotlock
- Owner
- LordTricker
- Published
- 2025-03-18
- Updated on Modrinth
- 2025-12-22
- Facts verified
- 2026-10-15