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modpack

Chunky OptimizationsMinecraft modpack for 26.3

Modpack focused on optimizing chunk generation, reducing stutter and boosting overall fps

client onlynewest supported release 26.3OptimizationLightweight
Latest version
1.17.5
Minecraft
1.21 to 26.3
Java
Java 25+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
5.6k
Updated
1 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 Chunky Optimizations declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
26.3Fabric25+declared15 Sept 2026
26.2Fabric25+declared16 Jun 2026
26.1.2Fabric25+declared9 Apr 2026
26.1.1Fabric25+declared1 Apr 2026
26.1Fabric25+declared24 Mar 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024

Download

From Chunky Optimizations’s own host. Nothing is re-hosted here.

Most recently published release

1.17.5release24 Sept 2026

Chunky Optimizations 1.18.5.mrpack · 31 KB · for 26.3 · Fabric

Download this release
57e7b9da1325…
Older versions21
  • 1.17.423 Sept 202626.331 KBef923ec5765f…Get
  • 1.16.323 Jun 202626.228 KB702 downloadsd25375f902a9…Get
  • 1.15.326 May 202626.1.228 KB387 downloadsfc2043ec0d11…Get
  • 1.14.326 May 202626.1.128 KB10 downloads4a2c89ad102a…Get
  • 1.13.326 May 202626.128 KB17 downloadsed1ec8e3b2c8…Get
  • 1.12.326 May 20261.21.1128 KB147 downloads4ef3663bbe1f…Get
  • 1.12.26 Jan 20261.21.1128 KB1.8k downloads9f13398e5b5b…Get
  • 1.11.26 Jan 20261.21.1028 KB78 downloadsf40470cd3029…Get
  • 1.10.27 Nov 20251.21.927 KB400 downloads25379d7e4a81…Get
  • 1.9.27 Oct 20251.21.927 KB111 downloads33c557fe95b5…Get
  • 1.8.26 Oct 20251.21.927 KB18 downloads70fe28f23a4d…Get
  • 1.7.26 Oct 20251.21.827 KB96 downloadse0ca47f8355e…Get
  • 1.6.26 Oct 20251.21.727 KB19 downloadsf12bdb38f812…Get
  • 1.5.26 Oct 20251.21.627 KB17 downloadsc172446852cd…Get
  • 1.4.26 Oct 20251.21.527 KB51 downloads57b3f3575e04…Get
  • 1.3.26 Oct 20251.21.427 KB122 downloads0d53d348490b…Get
  • 1.2.26 Oct 20251.21.326 KB19 downloadsbc9d698ae1b6…Get
  • 1.1.26 Oct 20251.21.127 KB181 downloads678e6ea7020e…Get
  • 1.0.26 Oct 20251.2126 KB58 downloadsd8f8b06a5178…Get
  • 1.0.16 Oct 20251.2126 KB12 downloadsfccc189ecda8…Get
  • 1.0.05 Oct 20251.2122 KB46 downloadsd5997b0c0811…Get

Frequently asked

Does Chunky Optimizations work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Chunky Optimizations 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 Chunky Optimizations support?

Everything the author has declared, from 1.21 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Chunky Optimizations 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 Chunky Optimizations 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 Chunky Optimizations?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Chunky Optimizations under?

LicenseRef-All-Rights-Reserved, 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 Chunky Optimizations?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Chunky Optimizations 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.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔Fastly OptimisedA modpack to enhance the performance of Pojavlauncher, MojoLauncher, Amethyst Launcher, Pojav Zenith Horizon (Zalith Launcher), Zalith Launcher2, Hello Launcher, FoldCraft Launcher, SolCraft Launcher and Low-End-PCs.Uton OptimizatorEffective optimization for weak PCs and even for mobile devices.

Details from Modrinth, where the author last updated it on 24 Sept 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

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