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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 release 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
12 mo ago
Available on
Modrinth
Space NodeOur hosting

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.

Most recently published release

1.7release22 Nov 2025

Redstone Utilities 1.7.mrpack · 10.5 MB · for 1.21.7 · Fabric

Download this release
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 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 Redstone Utilities 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 Redstone Utilities?

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 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?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Redstone Utilities 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.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔Photon OptimizationMinecraft optimization framework prioritizing performance, simplicity, and compatibility. 1.7.10-26.1.2 across Fabric, Forge, NeoForge, and Quilt!Just Enough OptimizationJust Enough Optimization - Focused on low memory usage and higher avarege fps. Made for low-end pc so everyone can run Minecraft

Details from Modrinth, where the author last updated it on 22 Nov 2025. 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? .