ModsJava
Lucky's Locksmith Mod (1.21.1) – Lock Your Chests and Stop Multiplayer Thieves
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Lucky's Locksmith Mod gives you new ways to lock up your items and keep them safe. It stops other players from taking your stuff on multiplayer servers…
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Lucky’s Locksmith Mod gives you new ways to lock up your items and keep them safe. It stops other players from taking your stuff on multiplayer servers. You get to lock your chests and barrels using special keys. This mod also brings new lock types for map makers who want to build custom dungeons.
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Features:
- Craftable Keys: Lets you create keys to lock your personal chests and barrels.
- Players need to hold the right key in their hand to open a locked container.
- Works with the Curios slot, so you can equip your key and open chests without holding it.
- Includes special Golden and Trial locks for custom dungeons.
- Gives map builders new tools in the Operator Utilities tab to lock structure loot.
How to Use:
- Craft a key and hold it in your main hand.
- Use the key on your chest or barrel to lock it up.
- Equip the key in your Curios slot to open the chest without keeping the key in your hand.
- Hide your key so other players cannot open your locked containers.
Screenshots:






Lucky’s Locksmith Mod Download Links
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: In MC Java Mods, or directly above on this page.
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
- Downloads as 396476.mcaddon
- Download size: 197 KB
- Download link checked 25 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.