How do I install Spectral Utilities?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Spectral Utilities work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Spectral Utilities

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by jghunter48 · on CurseForge

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric2 builds
Mod loader NeoForge1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.21.1Newest
Minecraft 1.20.1

Minecraft 1.21.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.21.1 · Fabric ⬇ Download for 1.20.1 · Fabric ⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

A collection of small but useful features for Spectrum by DaFuqsy.

Currently Implemented Features:

Ender Flasks - Upgraded Ink Flasks whose content synchronizes with all other Ender Flasks of the same color that belong to the same player.

Auxiliary Ink Supplier - A device that allows Ink to be inserted into machines from an external source. Primarily meant for use with the Cinderhearth.

Moonstone Grow Lamp - A device that allows Jade Vines to grow without moonlight when placed directly above them. Placing a Shimmerstone Block on top of it makes it mimic sunlight instead.

The following features may contain spoilers for Spectrum:

Jade Vines now drop Jade Jelly if revived with a Nature's Staff.

Dragonbone can be grown using a Crystallerium.

Planned Features:

More resources for the Crystallerium.

Extra Crystallerium automation utilities.

Automatable, renewable sources for all Spectrum resources.

Deep Fusion Shrine - An upgraded Fusion Shrine that does not strictly require sky access.

Additional Create Integration:

Spectral Drill and Spectral Saw - Upgraded versions of the Mechanical Drill and Mechanical Saw that can break cloaked blocks.

Create integration has proven more complicated than anticipated, and the above feature is not likely to be implemented in the forseeable future.

This mod is currently compatible with Sinytra Connector and Sinytra Connector Forked. Connector Extras is also required to use this mod on Forge.

Connector support is not currently tested on 1.21.1, but theoretically should work.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as specutils-1.3.1.jar — drop this file into the mods folder
Download size: 506 KB
Download link checked 26 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21 Java mods for 1.20