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Ubi-UtilsMinecraft mod for 1.21.11

Catch people op abusing or admin abusing. (Gamemode Switches)

client onlynewest supported 1.21.11UtilityGame Mechanics
Latest version
2.1+1.21.9
Minecraft
1.21 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
CC0-1.0
Downloads
4.3k
Updated
8 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 Ubi-Utils 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 Ubi-Utils’s own host. Nothing is re-hosted here.

2.1+1.21.9release27 Jan 2026

ubiutils-2.1+1.21.9.jar · 1.9 MB · for 1.21.9

Download latest
4cced03737c3…
Older versions13
  • 2.1+1.21.826 Jan 20261.21.81.9 MB54 downloads9b1e2f5ea303…Get
  • 2.1+1.21.725 Jan 20261.21.71.9 MB12 downloads5915a26d0c49…Get
  • 2.1+1.21.624 Jan 20261.21.61.9 MB19 downloads998380e589d9…Get
  • 2.1+1.2124 Jan 20261.211.9 MB66 downloads7ad3fad22553…Get
  • 2.1+1.21.122 Jan 20261.21.11.9 MB76 downloadsc8104083fdc9…Get
  • 2.1+1.21.222 Jan 20261.21.21.9 MB13 downloads83b3778393cd…Get
  • 2.1+1.21.1113 Dec 20251.21.111.9 MB2.6k downloadsea781b679a52…Get
  • 2.130 Nov 20251.21.101.9 MB186 downloads7279337b1512…Get
  • 1.1.1+1.21.328 Mar 20251.21.30.2 MB102 downloadsf1a7ba92fc17…Get
  • 1.1.128 Mar 20251.21.50.2 MB674 downloadsf16b644e3830…Get
  • 1.1.027 Mar 20251.21.40.2 MB477 downloads336f0e57e1aa…Get
  • 1.0.121 Mar 20251.21.40.2 MB39 downloads133a1aaccdc3…Get
  • 1.0.021 Mar 20251.21.491 KB36 downloads092a33f6a56d…Get

Frequently asked

Does Ubi-Utils work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Ubi-Utils 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 Ubi-Utils 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 Ubi-Utils 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 Ubi-Utils 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 Ubi-Utils?

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 Ubi-Utils under?

CC0-1.0, 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 Ubi-Utils?

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 Ubi-Utils 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 27 Jan 2026. 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? .