ModsFinder

Auto-Lan

by WhiteSmileingMan

Auto-Lan opens a LAN server automatically when a Minecraft world loads, with settings that can be changed while the game is running.

FabricQuiltClient and serverMIT LicenseOpen source1.21 – 1.21.8

What it does

On loading a world, Auto-Lan opens it to other players on the local network without any manual step. Settings for the server, including port, online mode, maximum players, MOTD and whether cheats are allowed, can be changed mid-game, and the server can be stopped without quitting the world. Settings are stored globally and per world, and per-world values take priority over global ones, which in turn take priority over system defaults.

Server administration works through familiar commands: op and deop control cheats for individual players in singleplayer, and ban, ban-ip, banlist, pardon, pardon-ip, whitelist and the on/off toggles manage access. Ban and whitelist data is kept in the same files a dedicated server uses, so the world's player lists carry over. Players can also be exposed outside the local network through a tunnel, with ngrok as the only tunnel supported, which avoids port forwarding.

The mod uses ampersand formatting codes instead of section signs in the MOTD, and variables such as username and world can be inserted into it. Auto-Lan is open source under the MIT License and is published for Fabric and Quilt across nine game versions, 1.21 – 1.21.8, with 1.21.8-v1.1.1 as the latest Fabric file.

Key features

  1. Automatic LAN opening

    The LAN server starts as soon as a Minecraft world loads, so no manual step is needed.

  2. Mid-game server settings

    Port, online mode, maximum players and MOTD can be changed while playing, and the server can be stopped without quitting the world.

  3. Per-world and global settings

    Settings are saved globally and per world, with per-world values taking priority.

  4. Access management commands

    Bans, the banlist, pardons and the whitelist can be managed with server-style commands, and cheats can be granted per player with op and deop.

  5. Tunnel exposure

    The LAN can be reached from outside the local network through an ngrok tunnel, without port forwarding.

Compatibility

Latest build for each game version and loader.

1.21.x9 of 9 versions with builds
1.21.81.21.8-v1.1.1Not available
1.21.71.21.8-v1.1.1Not available
1.21.61.21.8-v1.1.1Not available
1.21.51.21.5-v1.0.0Not available
1.21.41.21.4-v1.0.01.21.4-v1.0.0
1.21.31.21.3-v1.0.01.21.3-v1.0.0
1.21.21.21.3-v1.0.01.21.3-v1.0.0
1.21.11.21.1-v1.0.0Not available
1.211.21-v1.0.0Not available
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Custom LAN is also client and server, open source under the MIT License, and covers 1.14 – 1.21.8 on Fabric and Quilt, so it reaches older versions than Auto-Lan. LAN stuff is client-side only, released under the Creative Commons Attribution 4.0 license and not open source, with files for 1.21.6 – 1.21.8. LANProtect is client-side only, open source under the MIT License, and built only for Fabric 1.21.5.

ModLoadersGame versionsEnvironmentUpdated
Auto-LanFabric and Quilt1.21 – 1.21.8Client and server2025-10-04
Custom LANFabric and Quilt1.14 – 1.21.8Client and server2025-07-26
LAN stuffFabric and Quilt1.21.6 – 1.21.8Client-side only2025-11-19
LANProtectFabric1.21.5Client-side only2025-06-02

Questions

Does Auto-Lan need to be installed on the server?

Yes. Every player and the server need a copy of the mod.

Which loaders does Auto-Lan support?

Fabric and Quilt. The latest Fabric file is 1.21.8-v1.1.1, and the latest Quilt file is 1.21.4-v1.0.0.

Can the LAN be reached from outside the local network?

Yes, through an ngrok tunnel. ngrok is the only tunnel supported, so no port forwarding is needed.

In the catalog

Auto-Lan is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 17,695 mods support Minecraft 1.21.8.

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What the author says

Functions: Customize more of your integrated server (Online Mode, Max Players, MOTD) Use ampersands (&) for formatting codes instead of section signs (§) and variables (e.g. ${username}, ${world}) in the MOTD Change the settings mid-game (including the port) and stop the server without quitting the world Save the…
WhiteSmileingMan, on the Modrinth page

Official listing

Owner
WhiteSmileingMan
Published
2025-05-19
Updated on Modrinth
2025-10-04
Facts verified
2026-10-15

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