JLine for Dedicated Server

JLine for Dedicated Server

A server side mod to enable command history, auto completion and syntax highlighting on the server console

by
10.4K Downloads
fabricmanagement
Rent Server with this Mod

About this Mod

A server side mod to enable command history, auto completion and syntax highlighting on the server console, somewhat similar to the chat console in the game or the Spigot server console. Should have zero impact on the gameplay.

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This mod is configured via jline4mcdsrv.toml in the config folder:

  • logPattern is the pattern used for Log4j 2 (documentation found here)
  • highlightColors is a list of colors used to highlight parameters in order (as seen in the image above)

PSA: Since Minecraft 1.17 the -Dlog4j.skipJansi=false command line argument is needed for %style/%highlight log output (0.6.2 doesn't require this anymore).

This mod only works if the server is started with the 'nogui' option. There's no plan to add support for the GUI server.

Note: The original author of this mod is chirs241097 and the project is also found on CurseForge. I've been maintaining this mod for a while and Chris allowed me to bring the mod to Modrinth too!

Available Versions

0.8.0release
MC 26.1, 26.1.1, 26.1.2fabric
March 25, 2026
0.7.0 (JLine4)release
MC 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
March 25, 2026
0.6.5 (JLine3)release
MC 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
March 25, 2026
0.6.4release
MC 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
June 17, 2025
0.6.3+craftminerelease
MC 25w14craftminefabric
April 3, 2025

How to Install JLine for Dedicated Server on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).

3

Install Mod

Open the mod browser in the dashboard and search for "JLine for Dedicated Server". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.2, 26.1.1, 26.1 (+36 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

JLine for Dedicated Server 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 (26.1.2). You can switch loaders with one click in the panel.

Is JLine for Dedicated Server compatible with fabric?

JLine for Dedicated Server officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with JLine for Dedicated Server – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if JLine for Dedicated Server 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.

Rent Modded Server

Install JLine for Dedicated Server with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

26.1.226.1.126.11.21.111.21.101.21.91.21.81.21.71.21.625w14craftmine+29 more