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NumFluxMinecraft mod for 26.1.2

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

server onlynewest supported 26.1.2UtilityOptimization
Latest version
1.0.4-1.21.1-neo
Minecraft
1.20.5 to 26.1.2
Java
Java 25+
Loaders
Quilt, NeoForge, Fabric
Licence
MIT
Downloads
11.1k
Updated
1 mo ago
Available on
Modrinth
Space NodeOur hosting

Host NumFlux servers

One click and NumFlux is installed with the right loader, on hardware built for it.

  • 26.1.2
  • Quilt
  • NeoForge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version NumFlux declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.1.2Quilt, NeoForge, Fabric25+declared9 Apr 2026
26.1.1Fabric, Quilt, NeoForge25+declared1 Apr 2026
26.1NeoForge, Quilt, Fabric25+declared24 Mar 2026
1.21.8NeoForge, Quilt, Fabric21+declared17 Jul 2025
1.21.7NeoForge, Quilt, Fabric21+declared30 Jun 2025
1.21.6NeoForge, Quilt, Fabric21+declared17 Jun 2025
1.21.5Fabric, NeoForge, Quilt21+declared25 Mar 2025
1.21.4Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Fabric, Quilt, NeoForge21+declared23 Oct 2024
1.21.2NeoForge, Quilt, Fabric21+declared22 Oct 2024
1.21.1Quilt, NeoForge, Fabric21+declared8 Aug 2024
1.21Quilt, NeoForge, Fabric21+declared13 Jun 2024
1.20.6Fabric, Quilt, NeoForge21+declared29 Apr 2024
1.20.5NeoForge, Fabric, Quilt21+declared23 Apr 2024

Download

From NumFlux’s own host. Nothing is re-hosted here.

1.0.4-1.21.1-neorelease13 Jun 2026

NumFlux-1.0.4-1.21.1-neo.jar · 0.2 MB · for 1.21.1

Download latest
bbe94fa62265…
Older versions13
  • 1.0.4-1.21.1-fabric11 Jun 20261.21.10.2 MB390 downloads1f21b0c2b39d…Get
  • 1.0.3-1.21.1-neo31 May 20261.21.10.2 MB1.1k downloads7a04e0286359…Get
  • 1.0.3-1.21.1-fabric31 May 20261.21.10.2 MB102 downloads27aec057691d…Get
  • 1.0.2-1.21-1.21.1-neo17 Apr 20261.21.1, 1.210.2 MB1.9k downloads78bd9ef117e3…Get
  • 1.0.2-1.21-1.21.1-fabric17 Apr 20261.21.1, 1.210.2 MB281 downloads554305421437…Get
  • 1.0.1-1.20.5-1.21.89 Jan 20261.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4 +6 more0.2 MB2.3k downloads4247d5cba5c2…Get
  • 1.0.1-1.20.5-1.21.8-fabric9 Jan 20261.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4 +6 more0.2 MB1.2k downloads6993114bb406…Get
  • 1.0.1-1.21-1.21.1-neo9 Jan 20261.21.1, 1.210.2 MB39 downloads7b551eae2b87…Get
  • 1.0.1-1.21-1.21.1-fabric9 Jan 20261.21.1, 1.210.2 MB153 downloads120a256af966…Get
  • 1.0.0-1.21-1.21.1-neo31 Dec 20251.21.1, 1.210.2 MB156 downloadsd9d61daf0e86…Get
  • 1.0.0-1.21-1.21.1-fabric31 Dec 20251.21.1, 1.210.2 MB535 downloadsb535b15d3e6b…Get
  • 0.9.9b01-1.21-1.21.1-neo18 Dec 20251.21.1, 1.210.2 MB36 downloads19cd1c0cedcb…Get
  • 0.9.9b01-1.21-1.21.1-fabric18 Dec 20251.21.1, 1.210.2 MB38 downloads3535b02d5998…Get

Frequently asked

Does NumFlux work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version NumFlux 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 NumFlux support?

Everything the author has declared, from 1.20.5 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install NumFlux on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does NumFlux support?

Quilt, NeoForge, 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 NumFlux?

On the newest Minecraft version it supports, Java 25 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is NumFlux 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 NumFlux?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download NumFlux 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from Modrinth, where the author last updated it on 19 Aug 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .