Modrinth · Minecraft mod

NumFlux

Mod that speeds up overall math of game. Compatible with other server-related performance mods.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which NumFlux release should I use?

Updated 2 months ago

Latest stable file 1.0.4-1.21.1-neo

Game version 1.21.1

Loader NeoForge

NumFlux 1.0.4-1.21.1-neo targets 1.21.1 with NeoForge. Do not install it on the client. It must be installed on the dedicated server. All 1 required mods have matching files.

Where it goes

Is NumFlux required on the client, server, or both?

Do not install it on the client. It must be installed on the dedicated server.

Client Not supported

Dedicated server Required

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

This file is marked server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does NumFlux 1.0.4-1.21.1-neo need?

1.0.4-1.21.1-neo. Change the file and its required mods may change too.

All 1 required mods have matching files

Install Architectury API first. We found matching files for this game-version and loader setup.

Architectury API Needed by NumFlux 1.0.4-1.21.1-neo

required

Matching file found Matched file: 13.0.11+neoforge

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add NumFlux without breaking your instance.

Built for NumFlux 1.0.4-1.21.1-neo. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use 1.0.4-1.21.1-neo. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
02
Bring the mods it needs

Install Architectury API first. We found matching files for this game-version and loader setup.
03
Put it on the correct side

Do not install it on the client. It must be installed on the dedicated server.
04
Pick the file you checked

Use the “Get this file” button beside 1.0.4-1.21.1-neo. It opens that exact file at the source.

About this project

What does NumFlux add?

About ➗:

neo
r_a

Mod is a fork of GPUBooster. It only affects the server-side of the game. Since 1.0.4 includes Palladium server features.
Performance boost ≈ 3-7%

Features ✨:

Fast math operations
Fast random
Fast perlin noise samples
Fast AABB(Hitboxes) direction
Caching system properties

Other my mods:

GPUBooster(Client-size optimizations)
H+(New content & Difficulty Improvements)
EnlightenedBlockEntities/EBEReforged(Fork of enchanced block entities)[DISCONTINUED]
Palladium(Optimization)
MovieMaker(Content)

Project description from Modrinth.

Pick your setup

NumFlux by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

33 available setups

Minecraft version

1.21.8

3 loader builds

Fabric 1.0.1-1.20.5-1.21.8-fabric 0 stable files · 1 total · 9 Jan 2026 Quilt 1.0.1-1.20.5-1.21.8-fabric 0 stable files · 1 total · 9 Jan 2026 NeoForge 1.0.1-1.20.5-1.21.8 1 stable file · 1 total · 9 Jan 2026

Minecraft version

1.21.7

3 loader builds

Minecraft version

1.21.6

3 loader builds

Minecraft version

1.21.5

3 loader builds

Minecraft version

1.21.4

3 loader builds

Minecraft version

1.21.3

3 loader builds

Minecraft version

1.21.2

3 loader builds

Minecraft version

1.21.1

3 loader builds

Fabric 1.0.4-1.21.1-fabric 5 stable files · 7 total · 11 Jun 2026 Quilt 1.0.4-1.21.1-fabric 5 stable files · 7 total · 11 Jun 2026 NeoForge 1.0.4-1.21.1-neo 6 stable files · 7 total · 13 Jun 2026

Minecraft version

1.21

3 loader builds

Fabric 1.0.2-1.21-1.21.1-fabric 3 stable files · 5 total · 17 Apr 2026 Quilt 1.0.2-1.21-1.21.1-fabric 3 stable files · 5 total · 17 Apr 2026 NeoForge 1.0.2-1.21-1.21.1-neo 4 stable files · 5 total · 17 Apr 2026

Minecraft version

1.20.6

3 loader builds

Minecraft version

1.20.5

3 loader builds

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

NumFlux versions and loaders

14 of 14 releases match

1.0.4-1.21.1-neo

NumFlux-1.0.4-1.21.1-neo.jar

13 Jun 2026

Client Not supported Server Required Dependencies 1 required · matched Listed on Release listing

Check the 1.21.1 · NeoForge setup

1.21.1NeoForge release

Download on Modrinth

1.0.4-1.21.1-fabric

NumFlux-1.0.4-1.21.1-fabric.jar

11 Jun 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · Fabric setup

1.21.1FabricQuilt release

Download on Modrinth

1.0.3-1.21.1-neo

NumFlux-1.0.3-1.21.1-fabric.jar

31 May 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · NeoForge setup

1.21.1NeoForge release

Download on Modrinth

1.0.3-1.21.1-fabric

numflux-fabric-1.0.3.jar

31 May 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · Fabric setup

1.21.1FabricQuilt release

Download on Modrinth

1.0.2-1.21-1.21.1-neo

NumFlux-1.0.2-1.21-1.21.1.jar

17 Apr 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · NeoForge setup

1.211.21.1NeoForge release

Download on Modrinth

1.0.2-1.21-1.21.1-fabric

NumFlux-1.0.2-1.21.1.jar

17 Apr 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · Fabric setup

1.211.21.1FabricQuilt release

Download on Modrinth

1.0.1-1.20.5-1.21.8

NumFlux-1.0.1-1.20.5-1.21.8-neo.jar

9 Jan 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.8 · NeoForge setup

1.20.51.20.61.211.21.1 release

Download on Modrinth

1.0.1-1.20.5-1.21.8-fabric

NumFlux-1.0.1-1.20.5-1.21.8-fabric.jar

9 Jan 2026

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.8 · Fabric setup

1.20.51.20.61.211.21.1 beta

Download on Modrinth

1.0.1-1.21-1.21.1-neo

NumFlux-1.0.1-1.21-1.21.1-neo.jar

9 Jan 2026

Client Not supported Server Required Dependencies 2 required · 2 unchecked Listed on Release listing

Check the 1.21.1 · NeoForge setup

1.211.21.1NeoForge release

Download on Modrinth

1.0.1-1.21-1.21.1-fabric

NumFlux-1.0.1-1.21-1.21.1-fabric.jar

9 Jan 2026

Client Not supported Server Required Dependencies 2 required · 2 unchecked Listed on Release listing

Check the 1.21.1 · Fabric setup

1.211.21.1FabricQuilt release

Download on Modrinth

1.0.0-1.21-1.21.1-neo

NumFlux-1.0.0-1.21-1.21.1-neo.jar

31 Dec 2025

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · NeoForge setup

1.211.21.1NeoForge release

Download on Modrinth

1.0.0-1.21-1.21.1-fabric

NumFlux-1.0.0-1.21-1.21.1-fabric.jar

31 Dec 2025

Client Not supported Server Required Dependencies 1 required · 1 unchecked Listed on Release listing

Check the 1.21.1 · Fabric setup

1.211.21.1FabricQuilt release

Download on Modrinth

Looking for an older file? The official Modrinth project page is in Resources.

NumFlux

Which NumFlux release should I use?

Is NumFlux required on the client, server, or both?

What else does NumFlux 1.0.4-1.21.1-neo need?

Add NumFlux without breaking your instance.

Stick to this file

Bring the mods it needs

Put it on the correct side

Pick the file you checked

What does NumFlux add?

About ➗:

Features ✨:

Other my mods:

NumFlux by Minecraft version and loader

1.21.8

1.21.7

1.21.6

1.21.5

1.21.4

1.21.3

1.21.2

1.21.1

1.21

1.20.6

1.20.5

NumFlux versions and loaders

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