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Auto OptimizationMinecraft mod for 1.21.11

This mod auto scans the the 10 chunks your in or the ones you loaded and sees for issue it can fix to improve your fps auto optimizing your fps without requring lots of work done

client onlynewest supported 1.21.11TechnologyUtilityGame MechanicsOptimization
Latest version
1.21.11
Loader
Fabric
Licence
MIT
Downloads
10.4k
Updated
8 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 Auto Optimization declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025

Download

From Auto Optimization’s own host. Nothing is re-hosted here.

1.21.11release10 Feb 2026

autoptimization-1.21.11-1.0.0.jar · 1.0 MB · for 1.21.11

Download latest
b40afa5ab13e…
Older versions2
  • 1.21.910 Feb 20261.21.91.0 MB93 downloads1c60dbb0f47b…Get
  • 1.21.810 Feb 20261.21.81.0 MB699 downloads11c1811cd684…Get

Frequently asked

Does Auto Optimization work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Auto Optimization 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 Auto Optimization support?

Everything the author has declared, from 1.21.8 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 Auto Optimization 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 Auto Optimization support?

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 Auto Optimization?

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 Auto Optimization under?

MIT, 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 Auto Optimization?

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 Auto Optimization 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.

Details from Modrinth, where the author last updated it on 10 Feb 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .