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CurseForge · Minecraft mod
Molecularis
Decompose Minecraft items into chemical elements and molecules, then recompose them into new matter with automation-friendly chemistry machines.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Molecularis release should I use?
beta file Molecularis 1.21.1-NeoForge-0.2.1.jar
Game version 1.21.1
Loader NeoForge
Molecularis 1.21.1-NeoForge-0.2.1.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Molecularis required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Molecularis 1.21.1-NeoForge-0.2.1.jar need?
Molecularis 1.21.1-NeoForge-0.2.1.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Molecularis without breaking your instance.
Built for Molecularis 1.21.1-NeoForge-0.2.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Molecularis 1.21.1-NeoForge-0.2.1.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Molecularis 1.21.1-NeoForge-0.2.1.jar. It opens that exact file at the source.
About this project
What does Molecularis add?
Molecularis is a chemistry and matter-transformation mod for Minecraft.
Break down everyday Minecraft items into their chemical elements and compounds, then use those materials to build new items through advanced machines. With the Decomposer and Composer, matter becomes a resource system: logs can become cellulose, ores can become elements, compounds can be rebuilt into useful blocks, and familiar Minecraft items can be understood through their molecular composition.
The mod is inspired by chemistry, atomic alchemy, and technical automation. Molecularis adds all 118 chemical elements, many molecular compounds, JEI recipe support, machine interfaces, side configuration for automation, and a growing database of vanilla item compositions.
Current features:
- 118 chemical element items
- Many chemical compounds and molecular materials
- Decomposer machine: break items into elements and compounds
- Composer machine: rebuild items from chemical ingredients
- Recipe locking for automated crafting
- JEI integration for decomposition and composition recipes
- Position-based composer recipes for items with shared ingredients
- Creative tab for all Molecularis items and machines
- Early automation support with configurable machine sides
- Minecraft-style chemistry progression
Molecularis is designed for players who enjoy tech mods, automation, chemistry, and turning Minecraft’s world into a system of atoms, molecules, and matter.
Project description from CurseForge.
Pick your setup
Molecularis by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Molecularis versions and loaders
Molecularis 1.21.1-NeoForge-0.2.1.jar
28 Aug 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.21.1NeoForge beta
Molecularis 1.21.1-0.1.12.jar
21 Aug 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup Fabric1.21.1 beta
Molecularis 1.21.1-0.1.11.jar
21 Aug 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup Fabric1.21.1 beta
Looking for an older file? The official CurseForge project page is in Resources.
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