CurseForge · Minecraft mod
LT-SlotLock
LT-SlotLock is an amateur modification for Minecraft that enables easy management of inventory slot locking and item frame locking. With its intuitive graphical user interface and convenient commands, you can quickly adjust the settings to suit your needs.
Quick answer
Which LT-SlotLock release should I use?
LT-SlotLock ltsl 1.21.10.jar targets 1.21.9, 1.21.10 with Fabric. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is LT-SlotLock required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does LT-SlotLock ltsl 1.21.10.jar need?
ltsl 1.21.10.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add LT-SlotLock without breaking your instance.
Built for LT-SlotLock ltsl 1.21.10.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ltsl 1.21.10.jar. It targets 1.21.9, 1.21.10 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside ltsl 1.21.10.jar. It opens that exact file at the source.
About this project
What does LT-SlotLock add?
LT-SlotLock - Minecraft Mod
📌 Description
LT-SlotLock is an amateur modification for Minecraft that enables easy management of inventory slot locking and item frame locking. With its intuitive graphical user interface and convenient commands, you can quickly adjust the settings to suit your needs. The mod automatically saves your preferences so that your settings persist between game sessions.
✨ Features
- Slot Locking – Toggle locking of inventory slots.
- Item Frame Lock – Toggle locking of item frames.
- GUI Configuration – A dedicated settings screen allows you to easily modify options.
- Automatic Saving – Settings are saved to a configuration file when the GUI is closed.
- Command Support – Quick access to mod information and options via client-side commands.
🔷 – Latest updates and fixes
📜 Commands
| Command | Description |
|---|---|
/lts |
Displays information about the mod and current settings |
/lts settings |
Opens the mod settings GUI |
/lts pomoc |
Displays a list of available commands |
🔧 Installation
- Download the latest version of the mod from GitHub.
- Place the
.jarfile in themodsfolder in your Minecraft directory. - Launch the game and configure the mod according to your preferences!
🛠 Configuration
After the first launch, the mod generates a configuration file that preserves your settings between sessions: %appdata%/.minecraft/config/ltslotlock-config.json You can manually edit this file to customize the settings to your needs.
🎉 Thank you for using LT-SlotLock!
"Bierzcie i korzystajcie z tego wszyscy - to jest bowiem praca moja, która dla was została wykonana" ~LordTricker
Project description from CurseForge.
Pick your setup
LT-SlotLock by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.1
1 loader build1.21
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
LT-SlotLock versions and loaders
ltsl 1.21.10.jar
ltsl-1.1.0-Alpha+1.21.10.jar
24 Jan 2026
ltsl 1.21.8.jar
ltsl-1.1.0-Alpha+1.21.8.jar
24 Jan 2026
ltsl 1.21.4.jar
ltsl-1.1.0-Alpha+1.21.4.jar
24 Jan 2026
ltsl 1.21.1.jar
ltsl-1.1.0-Alpha+1.21.1.jar
24 Jan 2026
Looking for an older file? The official CurseForge project page is in Resources.