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mod

Idle TweaksMinecraft mod for 1.21.11

Reduces Minecraft's resource usage while it runs in the background.

client onlynewest supported release 1.21.11UtilityOptimizationManagement
Latest version
1.2.1
Minecraft
1.8.9 to 1.21.11
Java
Java 21+
Loaders
Quilt, Forge, Fabric
Licence
CC-BY-NC-ND-4.0
Downloads
674.2k
Updated
7 mo 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 Tweaks declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Quilt, Forge, Fabric21+declared9 Dec 2025
1.21.10Fabric, Quilt, Forge21+declared7 Oct 2025
1.21.9Forge, Quilt, Fabric21+declared30 Sept 2025
1.21.8Forge, Quilt, Fabric21+declared17 Jul 2025
1.21.7Forge, Quilt, Fabric21+declared30 Jun 2025
1.21.6Forge, Quilt, Fabric21+declared17 Jun 2025
1.21.5Forge, Quilt, Fabric21+declared25 Mar 2025
1.21.4Forge, Quilt, Fabric21+declared3 Dec 2024
1.21.3Forge, Quilt, Fabric21+declared23 Oct 2024
1.21.2Forge, Quilt, Fabric21+declared22 Oct 2024
1.21.1Forge, Quilt, Fabric21+declared8 Aug 2024
1.21Forge, Quilt, Fabric21+declared13 Jun 2024
1.20.6Forge, Quilt, Fabric21+declared29 Apr 2024
1.20.5Fabric, Forge, Quilt21+declared23 Apr 2024
1.20.4Quilt, Forge, Fabric17+declared7 Dec 2023
1.20.3Fabric, Quilt, Forge17+declared4 Dec 2023
1.20.2Forge, Quilt, Fabric17+declared20 Sept 2023
1.20.1Forge, Quilt, Fabric17+declared12 Jun 2023
1.20Forge, Quilt, Fabric17+declared2 Jun 2023
1.19.4Forge, Quilt, Fabric17+declared14 Mar 2023
1.19.3Fabric, Quilt, Forge17+declared7 Dec 2022
1.19.2Quilt, Forge, Fabric17+declared5 Aug 2022
1.19.1Fabric, Quilt, Forge17+declared27 Jul 2022
1.19Forge, Quilt, Fabric17+declared7 Jun 2022
1.17.1Forge, Quilt, Fabric16+declared6 Jul 2021
1.16.5Forge, Quilt, Fabric8+declared14 Jan 2021
1.12.2Forge, Quilt, Fabric8+declared18 Sept 2017
1.8.9Quilt, Forge, Fabric8+declared3 Dec 2015

Download

From Idle Tweaks’s own host. Nothing is re-hosted here.

For Minecraft 1.21.11

Choose the loader you use before downloading.

Most recently published release

1.2.1release4 Apr 2026

IdleTweaks-1.2.1.jar · 68 KB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more · Fabric, Quilt

Choose file on publisher ↗
75ac00ba4b42…
Older versions11
  • 1.1.13 Apr 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more68 KBb4ca42f0d1ca…Choose file on publisher ↗
  • 1.1.017 Aug 20251.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more69 KB8ca460a2e3f8…Choose file on publisher ↗
  • v1.0.88 Jul 20231.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +2 more67 KB0e0c47accd87…Choose file on publisher ↗
  • v1.0.72 Jul 20231.19.4, 1.19.3, 1.19.2, 1.19.1, 1.1986 KB639fba40f2d2…Choose file on publisher ↗
  • v1.0.622 Jun 20231.17.1, 1.16.586 KBd843ce9e5793…Choose file on publisher ↗
  • v1.0.55 Jun 20231.12.2, 1.8.91.1 MBc48bec2ed920…Get
  • v1.0.43 Jun 20231.12.2, 1.8.91.1 MB8d6aa0da82bb…Get
  • v1.0.331 May 20231.12.2, 1.8.91.0 MB8321d41bfe7b…Get
  • v1.0.230 May 20231.8.91.0 MB075fe58efdae…Get
  • v1.0.127 May 20231.8.91.0 MB842b1961dfef…Get
  • v1.0.026 May 20231.8.91.0 MBc2e275a96071…Get

Frequently asked

Does Idle Tweaks work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Idle Tweaks 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 Tweaks support?

Everything the author has declared, from 1.8.9 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Idle Tweaks 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 Tweaks support?

Quilt, Forge, Fabric. 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 Tweaks?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Idle Tweaks under?

CC-BY-NC-ND-4.0, 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 Tweaks?

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 Tweaks 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from Modrinth, where the author last updated it on 4 Apr 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .