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modpack

Redstone UtilitiesMinecraft modpack for 1.21.7

Redstone Utilities provides the best mods for technical Minecraft players while simultaneously providing the best possible performance.

client onlynewest supported 1.21.7TechnologyOptimizationLightweightMultiplayer
Latest version
1.7
Minecraft
1.20.4 to 1.21.7
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
4.1k
Updated
8 mo ago
Available on
Modrinth
Space NodePartner

Host Redstone Utilities servers

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

  • 1.21.7
  • Fabric
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • 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 Redstone Utilities declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.7Fabric21+declared30 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.20.4Fabric17+declared7 Dec 2023

Download

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

1.7release22 Nov 2025

Redstone Utilities 1.7.mrpack · 10.5 MB · for 1.21.7

Download latest
3e66a04e4d4e…
Older versions7
  • 1.65 Jul 20251.21.510.5 MB569 downloads7b0c570e76d0…Get
  • 1.516 May 20251.21.410.5 MB326 downloads94b4ac650c48…Get
  • 1.416 Feb 20251.21.410.5 MB460 downloadsfff847c6d68c…Get
  • 1.35 Nov 20241.21.110.5 MB499 downloads21bf2850c685…Get
  • 1.222 Sept 20241.21.110.5 MB570 downloads85c539014a9f…Get
  • 1.131 Mar 20241.20.411.6 MB121 downloads97684c4485e0…Get
  • 1.028 Mar 20241.20.410.5 MB128 downloadsc2beff0e162a…Get

Frequently asked

Does Redstone Utilities work on Minecraft 1.21.7?

Yes. 1.21.7 is the newest Minecraft version Redstone Utilities 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 Redstone Utilities support?

Everything the author has declared, from 1.20.4 up to 1.21.7. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Redstone Utilities on the client or the server?

The client only. There is nothing to install on the server, so it works on any server you can already join.

Which loader does Redstone Utilities need?

Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Redstone Utilities?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the modpack itself.

What licence is Redstone Utilities 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 Redstone Utilities?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 Redstone Utilities safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

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 6 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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