mod
Idle BoostMinecraft mod for 1.21.1
This mod optimizes performance when Minecraft is running in the background.
- Latest version
- 1.2.0+1.21.1
- Minecraft
- 1.20.1 to 1.21.1
- Java
- Java 21+
- Loaders
- Fabric, NeoForge, Forge
- Licence
- LicenseRef-mSLA-v2.0
- Downloads
- 72.1k
- Updated
- 2 y ago
- Available on
- Modrinth
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Idle Boost declares support for, newest first, with the Java runtime that version needs.
Download
From Idle Boost’s own host. Nothing is re-hosted here.
idle_boost-fabric-1.2.0+1.21.1.jar · 25 KB · for 1.21.1
c84e51e55d65…Older versions9Hide older versions
- 1.2.0+1.20.626 Sept 20241.20.624 KB290 downloads
dfa37a17457d…Get - 1.2.0+1.20.126 Sept 20241.20.125 KB8.2k downloads
fb05efdee873…Get - 1.1.1+1.2128 Jul 20241.21.1, 1.2123 KB2.3k downloads
6b43ae9dbe9a…Get - 1.1.1+1.20.628 Jul 20241.20.623 KB112 downloads
6f17329e7fd0…Get - 1.1.0+1.218 Jul 20241.2123 KB798 downloads
1d362ad8501c…Get - 1.1.0+1.20.68 Jul 20241.20.623 KB591 downloads
ab9b5422887e…Get - 1.0.1+1.20.67 Jul 20241.20.623 KB87 downloads
ddff4fa5f70d…Get - 1.0.1+1.215 Jul 20241.2123 KB269 downloads
e78306ac8ef8…Get - 1.0.0+1.2130 Jun 20241.2123 KB116 downloads
a6a23570f264…Get
Frequently asked
Does Idle Boost work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Idle Boost declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Idle Boost support?
Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Idle Boost on the client or the server?
The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.
Which platform or loader does Idle Boost support?
Fabric, NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Idle Boost?
On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.
What licence is Idle Boost under?
LicenseRef-mSLA-v2.0, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Idle Boost?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Idle Boost safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .