LANLock
🟡 Updated this year⚠️ Install Order · 2 steps
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🔍 Analysis
- 👍 0.1% endorsement rate
- 🏆 #767 of 940 fabric mods in this game by downloads
📋 About This Mod
**Note:** This is not needed for e4mc 5.4.0+ as they implemented a whitelist there --- # LANLock A few days ago, I stumbled across (https://github.com/Ovilli/LANGuard), a mod that achieves the same thing as this one and also contributed to it. As this was my first ever contact with Java and Minecraft Mod Development, I started to work on a new PR but soon noticed that I'm basically rewriting the entire mod. So I thought, it would be better if I just start a fully own mod that uses a different approach to enforce the whitelist. And here we are :) <br> <br> Also a thanks to (https://github.com/Ovilli) for creating their mod that is the start of this one. ## Reason for this mod More and more players are using mods like (https://github.com/vgskye/e4mc-minecraft-architectury/) to make their LAN worlds publicly available. But griefers have noticed this too and as LAN worlds provide no tooling to prevent anyone from joining, this starts to become a risk (see this (https://www.youtube.com/watch?v=3tK06u22VQg)). With this mod I tried to recreate the Minecraft Server whitelist system as closely as possible (with my non-existent Java knowledge). ## Features - a whitelist similar to the server counterpart - stores name and UUID - UUID is used to check if connecting player is on the whitelist - config screen made with Cloth Config in modmenu for easy configuration - automatically resolves UUID for added player names asynchronously - option to disable the whitelist entirely - option to use names instead of UUIDs for checking (for testing) - same options accessible via the client side command `/lanlock` ## Important As of version `1.3.5`, (https://modrinth.com/mod/cloth-config) is not a hard dependency anymore. So if you want to configure the mod via Modmenu in a GUI, you need to install both Modmenu and Cloth Config API by yourself. ## Technical Other than (https://github.com/Ovilli/LANGuard), LANLock doesn't even allow non whitelisted players to join the server by modifying the connection process with a mixin. So this and the usage of UUIDs differentiate this mod from (https://github.com/Ovilli/LANGuard) and at least from my understanding of programming should make it more secure. ## License (https://github.com/technicfan/LANWhitelist/blob/main/LICENSE)
Note: This is not needed for e4mc 5. 4. 0+ as they implemented a whitelist there
A few days ago, I stumbled across (https://github.com/Ovilli/LANGuard), a mod that achieves the same thing as this one and also contributed to it. As this was my first ever contact with Java and Minecraft Mod Development, I started to work on a new PR but soon noticed that I'm basically rewriting the entire mod. So I thought, it would be better if I just start a fully own mod that uses a different approach to enforce the whitelist. And here we are :)
Also a thanks to (https://github.com/Ovilli) for creating their mod that is the start of this one.
## Reason for this mod
More and more players are using mods like (https://github.com/vgskye/e4mc-minecraft-architectury/) to make their LAN worlds publicly available. But griefers have noticed this too and as LAN worlds provide no tooling to prevent anyone from joining, this starts to become a risk (see this (https://www.youtube.com/watch?v=3tK06u22VQg)). With this mod I tried to recreate the Minecraft Server whitelist system as closely as possible (with my non-existent Java knowledge).
## Features
- a whitelist similar to the server counterpart
- - stores name and UUID
- - UUID is used to check if connecting player is on the whitelist
- config screen made with Cloth Config in modmenu for easy configuration
- - automatically resolves UUID for added player names asynchronously
- - option to disable the whitelist entirely
- - option to use names instead of UUIDs for checking (for testing)
- same options accessible via the client side command `/lanlock`
## Important
As of version `1. 3. 5`, (https://modrinth.com/mod/cloth-config) is not a hard dependency anymore.
So if you want to configure the mod via Modmenu in a GUI, you need to install both Modmenu and Cloth Config API by yourself.
## Technical
Other than (https://github.com/Ovilli/LANGuard), LANLock doesn't even allow non whitelisted players to join the server by modifying the connection process with a mixin. So this and the usage of UUIDs differentiate this mod from (https://github.com/Ovilli/LANGuard) and at least from my understanding of programming should make it more secure.
(https://github.com/technicfan/LANWhitelist/blob/main/LICENSE)
📊 Mod Details
- Game
- Minecraft Mods
- Author
- technicfan
- Version
- 1.3.7
- Downloads
- 18,999
- Endorsements
- 13
- Category
- fabric
- Created
- 6/7/2025
- Updated
- 6/16/2026
- Game Versions
- 26.2
- Tags
- management, utility
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❓ Frequently Asked Questions
Which Minecraft Mods versions does LANLock support?
The author lists 26.2. Other versions may work but are untested by the author.
What is the latest version of LANLock?
Version 1.3.7, published 2026-06-16 with 18,999 downloads recorded at the source.
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