# How to Set Up a Minecraft Server Using the Official Server.jar

Canonical: https://guides.gaialegends.pro/posts/minecraft-server-setup-with-server-jar
Published: 2026-10-06
Updated: 2026-10-06
Version scope: Minecraft Java Edition

> The official Minecraft server.jar is a free, dedicated server application for Java Edition distributed by Mojang. Setting it up requires downloading the file, running it to generate the EULA, accepting the EULA by setting eula=true in eula.txt, and restarting the server. It offers both a command-line and graphical interface for management, making it the most direct way to host a vanilla multiplayer experience.

<TldrBox>The official Minecraft server.jar is a free, dedicated server application for Java Edition distributed by Mojang. Setting it up requires downloading the file, running it to generate the EULA, accepting the EULA by setting eula=true in eula.txt, and restarting the server. It offers both a command-line and graphical interface for management, making it the most direct way to host a vanilla multiplayer experience.</TldrBox>

## Key Takeaways

| Point | Details |
| --- | --- |
| The server.jar is the | The server.jar is the official, free server software for Minecraft Java Edition. |
| First run generates the | First run generates the EULA file; you must set eula=true in eula.txt before the server starts. |
| The server is designed | The server is designed to run headless, making it perfect for dedicated hosting environments. |
| Management is done via | Management is done via a CLI where commands don't need a / prefix, or a basic AWT GUI. |
| The GUI displays real-time | The GUI displays real-time stats, player lists, and a log console for easy monitoring. |

Want to host a vanilla Minecraft world for you and your friends without any third-party software or complicated control panels? The official `server.jar` from Mojang Studios is the most direct route. This quick reference covers exactly what it is, how to get it running, and how to [manage it](/posts/how-to-prevent-griefing-on-minecraft-servers).

## What Is the Official Server.jar?

The `server.jar` is the official dedicated server software for Minecraft Java Edition. It is an executable JAR file that contains the complete server program and resources, stripped of client-specific code like rendering and audio.

> server.jar is an executable JAR file containing the program and resources of the Java Edition server software.

It is distributed free of charge and is intended to host a dedicated environment for multiplayer, able to run completely headless.

## Step-by-Step Setup and EULA Acceptance


![How to Set Up a Minecraft Server Using the Official Server.jar supporting Minecraft scene 1](/images/posts/minecraft-server-setup-with-server-jar-inline-1.webp)

The initial setup is straightforward, but there is one essential step that often causes confusion for first-time admins: accepting the End User License Agreement (EULA).

1.  **Download** the `server.jar` from the official Minecraft website and place it in an empty folder.
2.  **Run** the file using `java -jar server.jar`. The program will generate the necessary files, including `eula.txt`, and then exit.
3.  Open `eula.txt` in a text editor. You must change the line `eula=false` to `eula=true`.

> The default content is as follows: Much like server.properties, it follows the .properties syntax. eula has to be set to true for the server to start.

4.  **Run** `java -jar server.jar` a second time. The server will now generate the world and configuration files and begin hosting.

## Managing Your Server: CLI and GUI Interfaces

Once your server is running, you have two distinct ways to interact with it.

> The server software has both a command-line interface and a basic graphical user interface.

The **command-line interface (CLI)** is the primary method. You type commands directly into the terminal window. A helpful quirk is that commands do not require a `/` prefix. You can type `help`, `stop`, or `kick PlayerName` directly.

If your operating system supports windowing, the server will also launch a basic **graphical user interface (GUI)** unless you use the `--nogui` flag.

> The GUI appears if the platform supports windowing and the --nogui or nogui option is not provided.

This GUI provides a live overview of your server's health and activity.

> It is written in Abstract Window Toolkit (AWT) and features three sections: "Stats" which displays memory usage (graph and number percentage) and average tick time, "Players" which displays a player list, and "Log and chat" which displays logs and serves the same function as the command-line interface.

## Advanced: Bundler and Configuration Options

For advanced hosting setups, the `server.jar` includes a "bundler" layer for extracting runtime libraries. This system allows you to specify a different main class at startup using system properties, offering finer control over the server initialization process.

## Frequently Asked Questions

### Is the server.jar free?

Yes, the server.jar is distributed by Mojang Studios free of charge. You do not need to buy anything extra to host a server.

### Why does my server exit immediately when I run it?

The first run generates the EULA file. You must accept it by editing eula.txt and changing eula=false to eula=true. The server will not start until this is done.

### Do I need a Minecraft account to host a server?

You do not need an account to host the server itself, but players connecting to it will need a legitimate Minecraft Java Edition account to authenticate.

## Sources

- server.jar is an executable JAR file containing the program and resources of the Java Edition server software. — [Server.jar](https://minecraft.wiki/w/Server.jar)
- The default content is as follows: Much like server.properties, it follows the .properties syntax. eula has to be set to true for the server to start. — [Server.jar](https://minecraft.wiki/w/Server.jar)
- The server software has both a command-line interface and a basic graphical user interface. — [Server.jar](https://minecraft.wiki/w/Server.jar)
- The GUI appears if the platform supports windowing and the --nogui or nogui option is not provided. — [Server.jar](https://minecraft.wiki/w/Server.jar)
- It is written in Abstract Window Toolkit (AWT) and features three sections: "Stats" which displays memory usage (graph and number percentage) and average tick time, "Players" which displays a player list, and "Log and chat" which displays logs and serves the same function as the command-line interface. — [Server.jar](https://minecraft.wiki/w/Server.jar)