Idle Boost
This mod optimizes performance when Minecraft is running in the background.
Screenshots
About this Mod
Idle Boost was created by Kyronis. This mod reduces FPS and render distance when Minecraft is running in the background.
There are some advantages this mod has over other similar mods:
- ⚙️ Easy to configure via a custom options menu
- 🔁 Works on Fabric and NeoForge
- 🧩 No dependencies required
- 📦 Small and lightweight, with a file size of 24KB/25KB
- 🔓 Open Source
📌🌍 Latest Versions & Supported Languages
A full and always up-to-date version and language list is now available here on the official website.
You can help translate Idle Boost! Click here
Available Versions
How to Install Idle Boost on Your Client
Install the Mod Loader Locally
Install fabric for your local Minecraft version.
Download the Matching File
Choose the Idle Boost file for fabric and Minecraft 1.21.1.
Install Mod
Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21, 1.20.6 (+1 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Does Idle Boost need to be installed on the Minecraft server?
No. Modrinth marks Idle Boost as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.
Which version and loader does Idle Boost require?
Use a file for fabric, forge, neoforge and your exact Minecraft version. Supported versions include 1.21.1, 1.21, 1.20.6. Files for different loaders are not interchangeable.
Idle Boost is not working – what should I check?
First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.
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Minecraft Server for Your Group
Idle Boost stays on your client. Host a compatible world for your group.