CurseForge · Minecraft mod
Catalytic Tweaks
Changes mods behaviour, in a way to optimize them, fix some issues or extends their functionalities, most of them with configurations. Currectly affects Modular Machinery Reborn, SFM keywords colors, KJS in different ways , Pipez and more!
Quick answer
Which Catalytic Tweaks release should I use?
Catalytic Tweaks catalytictweaks-1.0.21.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 Catalytic Tweaks required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Catalytic Tweaks catalytictweaks-1.0.21.jar need?
catalytictweaks-1.0.21.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.
17 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Catalytic Tweaks without breaking your instance.
Built for Catalytic Tweaks catalytictweaks-1.0.21.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use catalytictweaks-1.0.21.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 catalytictweaks-1.0.21.jar. It opens that exact file at the source.
About this project
What does Catalytic Tweaks add?
This mod changes some behaviours of some mods, from utilities (for players and developers) to some performance issues, to in some cases addings a bit extra. All mods are optional and most of this can be configurated via the configs
KubeJS Extensions (KJS)
Extended Hand Commands
Replaces the generic hand command with more specific subcommands for precise use cases.
Example: /kjs hand item
Recipe Commands
Adds new commands under kjs and kubejs to simplify creating shaped and shapeless recipes using a chest interface.
Example: /kjs recipe
Look Commands
Introduces look commands that function like hand commands but target the block you are looking at.
Example: /kjs look
Almost Unified Integration
Allows Almost Unified to affect KubeJS recipes. This feature is enabled by default but can be disabled in the configuration.
Modular Machinery Reborn (MMR)
Recipe Performance
Optimized to handle up to 1 million recipes without impacting TPS. After that, you can see decimals on TPS impact
Improved Parallel Processing
Supports up to 2048 parallel operations (and in some cases up to 3000) with minimal TPS impact.
The parallel recipes is 1 type per machine, unlike the original which is multiple recipes per machine approach.
Caching Enhancements
Caches structure checks and function calls for faster execution, at the cost of slightly higher memory usage.
Vein Mine Stick
A tool similar to the mod's original, but without block filters (except air and controller blocks).
Machine Naming & Translation
Allows machines to use Components in their names, enabling custom translations and colored text.
Also supports FTBq-style syntax for names.
Energy & Hatch Lag Reduction
Treats energy and hatches as a list rather than a composite structure, reducing lag.
Recipe Ingredient Handling
Changes default behavior to not void ingredients (this change is now redundant as the original mod has adopted it).
Additionally, ingredients are cached in buffers for validation, then deleted. This prevents voiding on errors.
Validation applies to: items, fluids, energy (per tick and one time), chemicals, redstone, dimension, and entity requirements. All other requirements pass through as true.
A config list option allows NBT matching for items (default: minecraft:name_tag).
Super Factory Manager (SFM)
Customizable Keywords colors
Allows customization of each keyword's color scheme. Defaults to the standard SFM color palette.
Mystical Agriculture (MA)
Crux Recipe on JEI
Instead of crashing the view and spam logs, puts a shorter message and allow the recipe to go, but using an empty ingredient
Pipez Configuration Enhancements
Upgrade Configuration
Adjust upgrade settings (redstone mode, filtering, destination mode) via a config file generated on launch.
Default Settings
All settings are enabled by default, as this is where most lag originates in builds.
Diamond Upgrade Requirement Removed
No longer requires diamond upgrades to unlock configuration options, reducing build complexity and lag.
Full Removal Option
Includes a config option to completely remove any Pipez specific configurations.
EMI
Timing Gives the recipe view a lower priority, adds times to logs and change Thread name to indentify it better on the logs
Parallelism Basically the name, allows EMI to run in parallel, so it can speeds things up
Project description from CurseForge.
Pick your setup
Catalytic Tweaks by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Catalytic Tweaks versions and loaders
catalytictweaks-1.0.21.jar
4 Aug 2026
catalytictweaks-1.0.20.jar
2 Aug 2026
catalytictweaks-1.0.19.jar
26 Jul 2026
catalytictweaks-1.0.18.jar
24 Jul 2026
catalytictweaks-1.0.17.jar
21 Jul 2026
catalytictweaks-1.0.15.jar
14 Jul 2026
catalytictweaks-1.0.14.jar
9 Jul 2026
catalytictweaks-1.0.13.jar
6 Jul 2026
catalytictweaks-1.0.12.jar
3 Jul 2026
catalytictweaks-1.0.11.jar
22 Jun 2026
catalytictweaks-1.0.9.jar
31 May 2026
catalytictweaks-1.0.8.jar
30 May 2026
Looking for an older file? The official CurseForge project page is in Resources.