
Modrinth · Minecraft modpack
Server Optimization
Best server-side optimization modpack. Used to be called WingServer
Quick answer
Which Server Optimization release matches 1.21.3?
1.21.3-1.1 is a complete pack release for 1.21.3 with Fabric 0.16.9. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 10 mods in this pack file.
Pack setup
How should I set up Server Optimization for players and a server?
Use 1.21.3-1.1 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.
A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.
These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.
What are the server requirements for Server Optimization?
1.21.3-1.1 on 1.21.3. The pack contents and setup notes below stay tied to that release.
The selected pack release is 1.21.3-1.1. That file is for Minecraft 1.21.3 with Fabric 0.16.9. It contains 10 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.
About this project
What kind of pack is Server Optimization?

🦾 Server Optimization
This is a lightweight server modpack on optimization with no other mods other than optimization.
✨ Features
- Good performance
- Pre-configured settings
💽 Installation
- Convert the .mrpack to .zip using the Modrinth Pack to Zip Converter
🧩Java and Flags
- Use Java Eclipse Temurin 25 with the following flags:
-XX:+UseZGC -XX:+UseCompactObjectHeaders - For more details, read the article
🗺️ Chunk Pregeneration:
To prevent lag caused by players generating chunks, it’s recommended to pre-generate them. Use the Chunky mod for this task.
You can estimate the size of your future world on this website.
Steps:
- Select the world where you want to pre-generate chunks:
Example:
/chunky world minecraft:overworld - Set the radius:
Example:
/chunky radius 5000 - Start the chunk pregeneration process:
/chunky start
Project description from Modrinth.
Mods in 1.21.3-1.1
Open any mod on Modpacks.ch to check its files and dependencies.
58f834922afca11d686077f990764589a6e646ba · Modrinth version ponAdJiF · Project link unavailable Server only744f241bab3ce221ca226179ffc9cb5d004ddd0e · Modrinth version 9JiCiYHz · Project link unavailable Side not labelleddb518ceda4aa3068d32242285ac9c5816b9d694a · Modrinth version VkAgASL1 · Project link unavailable Side not labelled92bfd6b9964972d5c415102437a8142e71823ead · Modrinth version kwP1bhmH · Project link unavailable Side not labelled065410c520d858893c8f130d32f63a11317d6119 · Modrinth version a3QXXGz2 · Project link unavailable Side not labelled662e0d16a0ba7c4f1a61c8564b67cabcc7e1e175 · Modrinth version QhCwdt4l · Project link unavailable Side not labelled4b26cc8d176f5521ef94ec8173a57e4e27ff02b2 · Modrinth version rZTuu2qK · Project link unavailable Server onlye7fb857e2a3524cc62b00531ccb94129b61a096a · Modrinth version D4nCQOay · Project link unavailable Side not labelled52ac263911e0e4a2d696c8c2efc1d4331321dccb · Modrinth version dbmmgocV · Project link unavailable Server only7a7be1010039f915d17e8969882b58d181cdd56a · Modrinth version lJQrQPiF · Project link unavailable Side not labelledPick your setup
Server Optimization by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build1.21.11
2 loader builds1.21.10
2 loader builds1.21.8
2 loader builds1.21.7
1 loader build1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
1 loader build1.21.3
2 loader builds1.21.1
2 loader builds1.21
1 loader buildShowing the newest 12 of 20 game versions. Older files are in the list below.
Made local changes? Try them in a copied instance before touching a world you care about.
Recent files
Server Optimization versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.