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Kle's Render Layer OptimizerMinecraft mod for 1.21.11

Removes configured rendering layers to increase performance when rendering items, armor, weapons, etc.

client onlynewest supported 1.21.11UtilityOptimizationMagic
Latest version
v0.2.1
Minecraft
1.16.2 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
14.6k
Updated
10 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 Kle's Render Layer Optimizer 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
1.20.6Fabric21+declared29 Apr 2024
1.20.5Fabric21+declared23 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.3Fabric17+declared4 Dec 2023
1.20.2Fabric17+declared20 Sept 2023
1.20.1Fabric17+declared12 Jun 2023
1.20Fabric17+declared2 Jun 2023
1.19.4Fabric17+declared14 Mar 2023
1.19.3Fabric17+declared7 Dec 2022
1.19.2Fabric17+declared5 Aug 2022
1.19.1Fabric17+declared27 Jul 2022
1.19Fabric17+declared7 Jun 2022
1.18.2Fabric17+declared28 Feb 2022
1.18.1Fabric17+declared10 Dec 2021
1.18Fabric17+declared30 Nov 2021
1.17.1Fabric16+declared6 Jul 2021
1.17Fabric16+declared8 Jun 2021
1.16.5Fabric8+declared14 Jan 2021
1.16.4Fabric8+declared29 Oct 2020
1.16.3Fabric8+declared10 Sept 2020
1.16.2Fabric8+declared11 Aug 2020

Download

From Kle's Render Layer Optimizer’s own host. Nothing is re-hosted here.

v0.2.1release11 Dec 2025

krlo-1.16.2-1.21.11--0.2.1.jar · 30 KB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +28 more

Download latest
0b688456a5a9…
Older versions2
  • v0.2.09 Dec 20251.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +28 more31 KB175 downloads577e95db4730…Get
  • v0.1.02 Dec 20251.21.4, 1.21.3, 1.21.2, 1.21.1, 1.21 +7 more30 KB117 downloads19d41823c667…Get

Frequently asked

Does Kle's Render Layer Optimizer work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Kle's Render Layer 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 Kle's Render Layer Optimizer support?

Everything the author has declared, from 1.16.2 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 Kle's Render Layer 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 Kle's Render Layer 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 Kle's Render Layer Optimizer?

On the newest Minecraft version it supports, Java 21 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 Kle's Render Layer Optimizer 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 Kle's Render Layer 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 Kle's Render Layer 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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Details from Modrinth, where the author last updated it on 11 Dec 2025. 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? .