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Kind’s Crystal OptimizerMinecraft mod for 26.1.2

Kind Crystal Optimizer reduces delay when placing and breaking end crystals by handling them client side, making actions feel instant and eliminating lag.

client onlynewest supported 26.1.2UtilityGame MechanicsOptimization
Latest version
1.5.0
Minecraft
1.21 to 26.1.2
Java
Java 25+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
116.6k
Updated
5 d ago
Available on
Modrinth
Space NodeOur hosting

Host Kind’s Crystal Optimizer servers

One click and Kind’s Crystal Optimizer is installed with the right loader, on hardware built for it.

  • 26.1.2
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Kind’s Crystal Optimizer declares support for, newest first, with the Java runtime that version needs.

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

Download

From Kind’s Crystal Optimizer’s own host. Nothing is re-hosted here.

1.5.0release28 Jun 2026

Kind-s_Crystal_Optimizer-1.5.0.jar · 0.0 MB · for 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5 +9 more

Download latest
8c4ac0d256a4…
Older versions1
  • 1.0.04 Jun 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4 +9 more0.0 MB6.6k downloads8756de0f2089…Get

Frequently asked

Does Kind’s Crystal Optimizer work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version Kind’s Crystal Optimizer 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 Kind’s Crystal Optimizer support?

Everything the author has declared, from 1.21 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Kind’s Crystal Optimizer 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 Kind’s Crystal Optimizer 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 Kind’s Crystal Optimizer?

On the newest Minecraft version it supports, Java 25 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 Kind’s Crystal Optimizer 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 Kind’s Crystal Optimizer?

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 Kind’s Crystal Optimizer 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.

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Last checked 5 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

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