Compatibility
Minecraft: Java Edition
26.1.x
1.21.x
1.20.x
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Licensed MIT
Published yesterday
🔐 Lock & Key
Lock & Key adds a full-fledged key and lock system to Minecraft containers, turning chest protection into a gameplay mechanic.
Access to containers is determined not by permissions or commands, but by physical keys with unique FormCodes.
🔑 Keys
Each created key receives a unique FormCode in the format:
XXX#123
This code determines which containers (chests, barrels, etc.) the key can open.
🧱 Locking Containers
Sneak and right-click a container with a key to bind it to that key.
- Double chests are supported
- Only keys with a matching FormCode can open the container
🔄 Access Modes
Containers support multiple access modes:
- 🔒 Fully Locked — access only with the correct key
- 👁 View Only — players can open the container, but cannot take items
🧪 Key Copying System
The plugin includes a unique key duplication mechanic:
🟢 Key Cast
- Copies the FormCode of the original key
- Has limited durability
🟡 Duplicate Key
- Created from a key cast
- Can open linked containers
- Has a limited number of uses
⚙️ Key Durability
Duplicate keys lose durability with each use.
When durability reaches zero, the key breaks.
🧠 Features
- Uses
PersistentDataContainerfor data storage - No commands or region systems required
- Fully integrated into survival gameplay
- Lightweight and server-friendly
🔨 Crafts





