Menu

mod

Random OptimizationMinecraft mod for 1.21.1

This mod improves Minecraft's performance and fix serval bugs.

newest supported release 1.21.1Optimization
Latest version
1.7.6
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
LGPL-3.0-only
Downloads
189.8k
Updated
13 d ago
Available on
Modrinth
Space NodeOur hosting

Host Random Optimization servers

One click and Random Optimization is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Random Optimization declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.5Forge, NeoForge21+declared23 Apr 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.3NeoForge, Forge17+declared4 Dec 2023
1.20.2NeoForge, Forge17+declared20 Sept 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

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

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    1.7.4 · 17 Aug 2026 · randomoptimization-1.7.4-all.jar

    Get NeoForge

Most recently published release

1.7.6release26 Oct 2026

randomoptimization-1.7.6-1.20.1.jar · 0.8 MB · for 1.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more · Forge

Download this release
d3053647284b…
Older versions14
  • 1.7.523 Sept 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.8 MBa72684abd5bb…Get
  • 1.7.417 Aug 20261.21.10.1 MB588fb17153cd…Get
  • 1.7.37 Aug 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.8 MB7fef98dbe9b5…Get
  • 1.7.26 Aug 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.8 MBe89ee5a5f453…Get
  • 1.7.16 Aug 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.8 MB09ab2d3386de…Get
  • 1.7.05 Aug 20261.21.10.1 MBf8c323557394…Get
  • 1.6.026 Jul 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB207 downloadsd443a80f8e85…Get
  • 1.5.114 Jul 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB2.6k downloads5f822a1b7a3d…Get
  • 1.5.014 Jul 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB33 downloadsc79788996249…Get
  • 1.4.010 Jul 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB457 downloads04b397cd5930…Get
  • 1.3.018 May 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB5.7k downloads07263c78e6d0…Get
  • 1.2.018 Mar 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB7.0k downloadsc9c407802e9b…Get
  • 1.1.016 Mar 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more19 KB91 downloads31c004572ab7…Get
  • 1.0.017 Jan 20261.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.6 MB44.9k downloads69335e7b0880…Get

Frequently asked

Does Random Optimization work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Random 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 Random Optimization 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.

Which platform or loader does Random Optimization support?

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 Random Optimization?

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 Random Optimization under?

LGPL-3.0-only, 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 Random 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 Random 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. 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.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Details from Modrinth, where the author last updated it on 26 Oct 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? .