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modpack

Just Enough OptimizationMinecraft modpack for 1.21.11

Just Enough Optimization - Focused on low memory usage and higher avarege fps. Made for low-end pc so everyone can run Minecraft

client onlynewest supported 1.21.11TechnologyOptimizationLightweightMultiplayer
Latest version
1.0.0
Loaders
Fabric, Quilt, NeoForge, Forge
Licence
LicenseRef-WTFPL
Downloads
20.9k
Updated
9 mo ago
Available on
Modrinth
Space NodePartner

Host Just Enough Optimization servers

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

  • 1.21.11
  • Fabric
  • Quilt
  • NeoForge
  • Forge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric, Quilt, NeoForge, Forge21+declared9 Dec 2025
1.21.10Forge, Quilt, NeoForge, Fabric21+declared7 Oct 2025
1.21.9Forge, Quilt, NeoForge, Fabric21+declared30 Sept 2025
1.21.8Forge, Quilt, NeoForge, Fabric21+declared17 Jul 2025
1.21.7Forge, Quilt, NeoForge, Fabric21+declared30 Jun 2025
1.21.6Fabric, Quilt, NeoForge, Forge21+declared17 Jun 2025
1.21.5Fabric, Quilt, NeoForge, Forge21+declared25 Mar 2025
1.21.4Forge, Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.1Forge, Quilt, NeoForge, Fabric21+declared8 Aug 2024
1.21Forge, Quilt, NeoForge, Fabric21+declared13 Jun 2024
1.20.6Forge, Quilt, NeoForge, Fabric21+declared29 Apr 2024
1.20.5Forge, Quilt, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Fabric, Forge, NeoForge, Quilt17+declared7 Dec 2023
1.20.3Fabric, Quilt, NeoForge, Forge17+declared4 Dec 2023
1.20.2Forge, Quilt, NeoForge, Fabric17+declared20 Sept 2023
1.20.1Forge, Quilt, NeoForge, Fabric17+declared12 Jun 2023
1.19.4Forge, Quilt, NeoForge, Fabric17+declared14 Mar 2023
1.19.2Forge, Quilt, NeoForge, Fabric17+declared5 Aug 2022
1.19.1Forge, Quilt, NeoForge, Fabric17+declared27 Jul 2022
1.18.2NeoForge, Quilt, Forge, Fabric17+declared28 Feb 2022
1.18.1Fabric, Quilt, NeoForge, Forge17+declared10 Dec 2021
1.17.1Forge, Quilt, NeoForge, Fabric16+declared6 Jul 2021
1.16.5Forge, Quilt, NeoForge, Fabric8+declared14 Jan 2021
1.12.2Forge, Quilt, NeoForge, Fabric8+declared18 Sept 2017
1.8.9Forge, Quilt, NeoForge, Fabric8+declared3 Dec 2015
1.7.10NeoForge, Forge, Fabric, Quilt8+declared14 May 2014

Download

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

1.0.0release20 Dec 2025

JEOM 1.21.11 1.0.0.mrpack · 0.0 MB · for 1.21.11

Download latest
d7071265386e
Older versions6
  • 1.0.223 Oct 20251.21.100.4 MB163 downloads838007938c91Get
  • 1.0.122 Oct 20251.21.100.4 MB113 downloads4e416334b13aGet
  • 1.0.421 Jun 20251.16.50.5 MB475 downloads6f67af390dabGet
  • 1.0.32 Jun 20251.20.10.0 MB338 downloadsed44b8c2ebbdGet
  • 1.0.68 Feb 20241.16.50.1 MB424 downloads6e11140d5fdfGet
  • 1.0.511 Jan 20241.16.50.1 MB113 downloadscb648e465f2dGet

Frequently asked

Does Just Enough Optimization work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Just Enough 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 Just Enough Optimization support?

Everything the author has declared, from 1.7.10 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 Just Enough Optimization on the client or the server?

The client only. There is nothing to install on the server, so it works on any server you can already join.

Which loader does Just Enough Optimization need?

Fabric, Quilt, NeoForge, Forge. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Just Enough Optimization?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the modpack itself.

What licence is Just Enough Optimization under?

LicenseRef-WTFPL, 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 Just Enough Optimization?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 Just Enough Optimization safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

Last checked 2 mo ago against Modrinth. 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? .