How do I install LockSlots[+]?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does LockSlots[+] work with?

The listing gives Minecraft 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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LockSlots[+]

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by _Wintr__ · on Modrinth

⬇ Download on Modrinth

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A lightweight client-side mod that allows players to lock inventory slots. Locked items cannot be moved, dropped, or modified, helping prevent accidental mistakes while keeping the experience simple and vanilla-friendly.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as lockslots-1.0.0.jar — drop this file into the mods folder
Download size: 16 KB
Download link checked 22 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21