Mods Optimizer

Mods Optimizer

Automatic and real-time server bundling (one mod pack for client/server) and mod clean up for better performance and less crashes.

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197.7K Downloads
forgeneoforgemanagementoptimization
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Mods Optimizer

About this Mod

Mods Optimizer

⚠️ Please Read Before Using

Mods Optimizer will rename or move files inside your mods folder.
➡️ Make sure to keep regular backups of your modpack and server files.
While the mod includes safety checks, it cannot cover every possible edge case.

👾 Automatic Server Bundle Support

Mods Optimizer automatically disables mods that are client-only or **incompatible with servers
**.
You no longer need to maintain separate client and server modpacks!

  • ✅ One modpack works for both client and server
  • 🚫 No more guesswork or duplicate maintenance

🧹 Automatic Mod Cleanup

Tired of cleaning out old versions manually?

Mods Optimizer detects and removes duplicate mod versions during startup.
This helps keep your mods folder clean and prevents version conflicts.

  • 🗑 Removes outdated mod files
  • ✅ Keeps only the latest version

🚀 How to Use the Mod

  1. Add Mods Optimizer to your modpack (client and/or server).
  2. On game or server startup, it will automatically:
    • 🔍 Scan the mods folder
    • 🔄 Classify mods by side (client/server)
    • 🧼 Remove duplicates
    • 🚫 Rename client-only mods on servers to ???.client

Tip: For best results, use this mod on both client and server.

🧵 Fabric Support?

Currently, Fabric is not supported.
Fabric does not allow mods to run after the GameProvider but before the Mod Loader, which
prevents Mods Optimizer from functioning correctly.

❗ Support may be added in the future if Fabric changes this behavior.

🧪 Example Modpack

Want to see Mods Optimizer in action?
Check out the BOS Adventure World modpack:
👉 BOS Adventure World on CurseForge

ℹ️ More Information

For full documentation, usage tips, and FAQs:
📖 Visit the Mods Optimizer Wiki

🫶 Support me

Support my work on Patreon and/or Ko-fi to help me continue creating valuable content and projects for you!

Available Versions

Mods Optimizer 4.3.0release
MC 1.21.11forge
June 7, 2026
Mods Optimizer 4.3.0release
MC 1.21.11neoforge
June 7, 2026
Mods Optimizer 4.3.0release
MC 1.21.10neoforge
December 13, 2025
Mods Optimizer 4.3.0release
MC 1.21.10forge
December 13, 2025
Mods Optimizer 4.3.0release
MC 1.21.9neoforge
December 13, 2025

How to Install Mods Optimizer on Your Server

1

Order Server

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

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+20 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Mods Optimizer server crashes on startup – what to do?

Most common cause: wrong forge 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 (1.21.11). You can switch loaders with one click in the panel.

Is Mods Optimizer compatible with forge and neoforge?

Mods Optimizer officially supports forge, neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Mods Optimizer – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mods Optimizer 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 Mods Optimizer with just one click on your server.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.1+13 more