
ChestLocker
🗝️ Adds a secure, UUID-based key system that lets you lock, unlock, and share chests with password protection.
Screenshots

About this Mod
🧱 ChestLocker Mod – Secure Your Chests Like a Pro!
🔐 Protect your storage. Lock with a key. Share with friends.
💡 Features
- 🔒 Lock any chest with a password-protected Key Item (Tripwire Hook).
- 🔑 Each key stores its own password and owner (UUID-based), so only the true owner can lock or unlock.
- 🧍♂️ Whitelist system lets you share access with trusted players via
/chestaccesscommands. - 🧱 Break protection: Locked chests cannot be broken or moved until unlocked.
- 💬 HUD display: Shows “Locked by:
” when looking at a locked chest. - 💾 Data persistence: All locks automatically save to
config/chestlocker.json. - ⚙️ Multiplayer safe: All checks are server-authoritative — no client-side exploits.
🔧 How to Use
🪄 1. Create a Key
Hold a Tripwire Hook → Shift + Right-Click → Enter your password.
This will save your name and UUID onto the key.
🔐 2. Lock a Chest
Hold your key → Right-Click on a chest.
If you’re the owner, the chest will lock immediately and be stored securely.
🔓 3. Unlock a Chest
Hold your key → Shift + Right-Click on a locked chest.
The mod verifies your UUID + password hash — if they match, the chest unlocks!
🧍🤝🧍 Whitelist Commands
You can grant or revoke chest access to friends:
- /chestaccess add
- /chestaccess remove
- /chestaccess list
🧭 Tips
- Press Shift while hovering your key to reveal the real password.
- The key’s tooltip shows:
🔑 Key of <owner>
Password: ••••••••
Hold SHIFT to reveal
- You can only use your own key; others’ keys are invalid.
⚡ Security Summary
| Action | Requirement | Result |
|---|---|---|
| Lock chest | Your key (owner UUID matches) | ✅ Success |
| Unlock chest | Sneak + Right-Click with your key | 🔓 Unlocks |
| Use other’s key | Different UUID or password | ❌ Rejected |
| Break locked chest | Any player | ❌ Blocked |
📸 Screenshots & Demo
🖼️ Set password screen, owner tooltip, and key lock animation coming soon!
🔗 Links
- 🧰 Source: GitHub – PPekKunGz/ChestLocker
- 🌍 Developed by PPekKunGz
- 💬 Compatible: Minecraft 1.20.1+ (Fabric)
- 🪶 License: MIT
✨ Tagline
ChestLocker – Your chest, your rules.
Protect, share, and unlock safely with your personalized key. 🗝️
Available Versions
How to Install ChestLocker on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "ChestLocker". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.18.2
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
ChestLocker server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is ChestLocker compatible with fabric?
ChestLocker officially supports fabric for Minecraft 1.20.1, 1.18.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with ChestLocker – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if ChestLocker consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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