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ChunkisMinecraft mod for 1.21.11

Chunkis is a high-performance, sparse storage engine for Minecraft. It slashes world save sizes by only persisting player-made changes on top of chunk snapshots, using a custom binary format (CIS) designed for speed and efficiency.

client and servernewest supported release 1.21.11UtilityStorageOptimizationManagement
Latest version
4.0.0
Loader
Fabric
Licence
MIT
Downloads
1.7k
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Chunkis servers

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

  • 1.21.11
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
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
1.21.2Fabric21+declared22 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024

Download

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

Most recently published release

4.0.0beta12 Jul 2026

chunkis-4.0.0.jar · 7.9 MB · for 1.21.11 · Fabric

Download this release
ea3c120b560a…
Older versions2
  • 2.2.024 Apr 20261.21.100.2 MB28 downloads4c81a88ca13c…Get
  • 2.1.023 Feb 20261.21.100.2 MB40 downloads91d5dd6d0f3f…Get

Frequently asked

Does Chunkis work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Chunkis 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 Chunkis support?

Everything the author has declared, from 1.21 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 Chunkis on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Chunkis 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 Chunkis?

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 Chunkis 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 Chunkis?

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 Chunkis 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.

Details from Modrinth, where the author last updated it on 12 Jul 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? .