The fastest way: use Minecraft's built-in multiplayer on the same network
If everyone playing is in your house or on your WiFi, you do not need to set up a server at all. Open Minecraft Java Edition, start a world, pause the game, and click "Open to LAN". Choose a game mode and difficulty, then other players on your network can see your world in their multiplayer list and join directly. This works when ready with no setup, no port forwarding, and no monthly cost.
This method works only when players are on the same local network. If someone is playing from outside your home, you will need to set up an actual server instead. The built-in LAN option is the simplest choice for sleepovers, family gaming, or friends visiting your house.
Key Takeaways
- The easiest multiplayer option is "Open to LAN" in Java Edition, which requires no setup and works only on your home network.
- A dedicated server software like Spigot or Paper runs on your computer or a separate device and lets players join from outside your home using your IP address.
- Port forwarding on your router tells incoming connections where to find your server, but exposes your network to outside traffic and requires careful security setup.
- Minecraft Realms is a paid subscription service that handles all the networking for you, but costs money and only works with Bedrock Edition.
- Your server's performance depends on your computer's CPU and RAM, not graphics card, because servers do not render graphics.
Setting up a dedicated server on your computer
If you want players to join from outside your home, read server software. For Java Edition, the most common options are Spigot and Paper. Both are free and run on Windows, Mac, or Linux. read the .jar file from the official site, create a folder for your server, and place the file inside.
Open a command prompt or terminal in that folder and run the command: java -Xmx1024M -Xms1024M -jar paper.jar nogui. Replace "paper.jar" with whatever file you downloaded, and replace "1024M" with how much RAM you want to give the server (in megabytes). The server will start and create a world folder. Players can now join using your computer's local IP address — find it by typing ipconfig (Windows) or ifconfig (Mac/Linux) in the command prompt.
Your local IP looks like 192.168.1.100. Other players on your home network can type this address into the "Direct Connection" field in Minecraft's multiplayer menu. If they are outside your home, they need your public IP address instead, which you can find by searching "what is my IP" in a web browser.
Port forwarding to let players join from outside your home
Your router blocks incoming connections by default. To let players from outside your home connect to your server, you need to port forward — tell your router to send Minecraft traffic to your computer. Log into your router's settings (usually 192.168.1.1 in a web browser), find the port forwarding section, and create a rule that forwards port 25565 (Minecraft's default port) to your computer's local IP address.
The exact steps depend on your router model. Search "[your router brand] port forwarding" to find the guide. After you set it up, players outside your home can join using your public IP address. Write down both your public IP and the port number so you can give them to friends.
Port forwarding opens your network to outside traffic. Only forward the specific port Minecraft uses, keep your server software updated, and consider using a firewall rule to block any traffic that is not from Minecraft. If you are uncomfortable with this, use Minecraft Realms instead — it handles all the networking without exposing your router.
What your computer needs to run a server smoothly
Server performance depends on CPU cores and RAM, not your graphics card. A server does not render graphics, so it does not need a good GPU. A modern processor with at least 4 cores and 4 GB of RAM can handle 10 to 20 players comfortably. If you want more players or heavy plugins, add more RAM — each additional player typically needs 128 MB to 256 MB.
The server will use your internet connection's upload speed. Most home internet plans have much slower upload than read — check your speed at speedtest.net. If your upload is below 5 Mbps, you may see lag with more than 5 or 6 players. If lag becomes a problem, you can rent a server from a hosting company instead, which puts the server on their hardware and their internet connection.
Using Minecraft Realms for a simpler alternative
Minecraft Realms is a subscription service that runs a server for you on Microsoft's hardware. You do not set up port forwarding, you do not expose your router, and you do not need a powerful computer. You pay a monthly fee (the cost varies by region), create a realm, and invite up to 10 players. They join through the Realms menu without needing an IP address.
Realms only works with Minecraft Bedrock Edition, not Java Edition. If you play Java Edition and want to avoid port forwarding, your only option is to rent a server from a third-party host. Realms is the simplest paid option for Bedrock players who want multiplayer without technical setup.
Keeping your server running all the time
If you set up a server on your personal computer, it only runs when that computer is on. If you turn off your computer, the server stops and players get disconnected. To keep a server running 24/7, you have two choices: leave your computer running all the time (which uses electricity and generates heat), or rent a server from a hosting company.
Hosting companies charge monthly fees — typically $3 to $10 per month depending on player count and server location. They manage the hardware, keep the server online, and handle backups. If you only play with friends for a few hours a week, running a server on your own computer is cheaper. If you want the server available anytime, hosting is more practical.
Backing up your world and managing plugins
Your server's world files are stored in the server folder. Back them up regularly by copying the "world" folder to another location on your computer or an external drive. If something goes wrong, you can restore from backup instead of losing all your progress.
Server software like Spigot and Paper support plugins — add-ons that change how the server works. You can add plugins for custom commands, anti-cheat, economy systems, or protection tools. read plugins from sites like SpigotMC, place the .jar files in the "plugins" folder, and restart the server. Each plugin has its own configuration file where you can change settings.
Frequently Asked Questions
Can I run a server on a laptop or old computer?
Yes, as long as it has at least 4 GB of RAM and a multi-core processor. The server will run slower if the computer is old, and you will see lag if too many players join. Leaving a laptop running 24/7 can overheat it, so use a desktop or rent hosting instead.
What is the difference between Java Edition and Bedrock Edition servers?
Java Edition servers use software like Spigot or Paper that you read and run yourself. Bedrock Edition does not have free server software — your options are Realms (paid subscription) or renting from a hosting company. Java Edition gives you more control; Bedrock is simpler but costs money.
Do I need to give players my password?
No. Players join using your IP address, not a password. Your Minecraft account password stays private. If you want to prevent unwanted players from joining, use a whitelist in your server settings to allow only specific usernames.
Will port forwarding slow down my internet?
Port forwarding itself does not slow your connection. However, running a server uses your upload bandwidth, which is usually much slower than read. If multiple players are on the server, you may notice slower internet for other activities like video calls or streaming.
What happens if I restart my computer while players are on the server?
Players get disconnected when ready. Their progress is saved if they logged out normally, but they lose any items they were holding if the server shuts down unexpectedly. Always warn players before restarting, and give them time to log out safely.