A fast, customizable and compatible open source Minecraft server.


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A fast, customizable and compatible open source Minecraft server.


Glowstone is a lightweight, from scratch, open source Minecraft server written in Java that supports plugins written for the Spigot (and Bukkit) API.

The main goals of the project are to provide a lightweight implementation of the Spigot API and Minecraft server where exact vanilla functionality is not needed or higher performance is desired than the official software can deliver. Glowstone makes use of a thread-per-world model and performs synchronization only when necessitated by the Spigot API.


Glowstone has a few key advantages over CraftBukkit:

  • It is 100% open source. While CraftBukkit and most other mods are open source, they rely on decompiled Minecraft source code. Glowstone's code is completely original.
  • Because of this, it is easy to contribute to Glowstone's development. The barrier of entry to contributions is lower because there is no need to work around decompiled source or maintain a minimal diff.
  • Glowstone supports all plugins written for the Bukkit and Spigot API natively. In practice, some plugins may try to make use of parts of the API which are not yet implemented, but in a completed state Glowstone would support all Bukkit plugins.
  • Glowstone's simplicity affords it a performance improvement over CraftBukkit and other servers, making it especially suited for situations where a large amount of players must be supported but vanilla game features are not needed.

However, there are several drawbacks:

  • Glowstone is not finished. Nothing is guaranteed to work, though many things are likely to. If in doubt, file an issue.
  • Bukkit plugins which expect the presence of CraftBukkit-specific code (that are in the org.bukkit.craftbukkit or net.minecraft.server packages) will not work on Glowstone unless they are designed to fail gracefully.
  • Glowstone is not produced by the Bukkit team, and while we do make an effort to produce quality work, Glowstone does not undergo the same rigorious testing as the Bukkit project.

For a current list of features, check the wiki.


If you don't want to build from source, pre-built jar files are available to download from:

  • Direct gserv.me download - recommended, direct link to latest build

  • gserv.me - all builds, no login required

  • Build Status CircleCI - click the latest build and then open the "Artifacts" tab (you must be logged in for this to show)


1. Setup

After installing Oracle JDK (recommended) or OpenJDK, and Maven, checkout the source:

git clone https://github.com/GlowstoneMC/Glowstone
cd Glowstone

2. Build


The final jar will be placed in target/ named glowstone-X.XX-SNAPSHOT.jar.


Running Glowstone is simple because its dependencies are shaded into the output jar at compile time. Simply execute java -jar glowstone.jar along with any extra JVM options desired. A variety of command-line options are also available - run java -jar glowstone.jar --help for more information.

By default, configuration is stored in the config/ subdirectory and logs are stored in the logs/ subdirectory. The main configuration file is config/glowstone.yml, which replaces CraftBukkit's server.properties and bukkit.yml. Settings from these two files will be copied over to Glowstone's configuration during the default configuration generation process.

Glowstone uses JLine for console input and colored console output. The JLine console can be disabled in the configuration if a flat console is desired.


For those of you who just want to play on a Glowstone server, we have one available for testing at mc.glowstone.net. Have fun!

Docs and Support

The best place to receive support is on GitHub issues. When reporting bugs, please retest and include whether the problem reproduces on:

Javadocs for Glowstone can be found here.

For documentation on the Glowkit API (an updated Bukkit which is used to write plugins), see the Glowkit Javadocs or visit Spigot's Bukkit Javadocs.



Glowstone is open-source software released under the MIT license. Please see the LICENSE file for details.

Glowkit is open-source software released under the GPL license. Please see the LICENSE.txt file in the Glowkit repository for details.