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modpack

WelnoXMinecraft modpack for 1.21.11

The best optimization modpack in the newest minecraft versions! With the best performance mods, you can get a high FPS!

client onlynewest supported 1.21.11Optimization
Latest version
v26.07.31-26.1.2-vulkan
Minecraft
1.20.2 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
683
Updated
5 mo ago
Available on
Modrinth
Space NodePartner

Host WelnoX servers

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

  • 1.21.11
  • Fabric
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.2Fabric17+declared20 Sept 2023

Download

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

v26.07.31-26.1.2-vulkanrelease30 Jul 2026

WelnoX v26.07.31-26.1.2-vulkan.mrpack · 0.4 MB · for 26.1.2

Download latest
2cce5810cee8…
Older versions19
  • v26.02.24-1.21.11-vulkan24 Feb 20261.21.110.4 MB115 downloads0c7b91e756d3…Get
  • v25.12.19-1.21.11-vulkan19 Feb 20261.21.110.3 MB14 downloads058e3a71b4af…Get
  • v26.02.17-1.21.11-vulkan17 Feb 20261.21.110.3 MB18 downloads6107707396f1…Get
  • v25.12.14-1.21.10-vulkan14 Dec 20251.21.100.3 MB29 downloadscaa5ae78bf51…Get
  • v25.11.07-1.21.5-vulkan7 Nov 20251.21.50.3 MB23 downloadscb04b3a29f0c…Get
  • v25.10.02-1.21.8-sodium-22 Oct 20251.21.80.6 MB22 downloadsbd66d50c6b1c…Get
  • v25.10.02-1.21.8-sodium2 Oct 20251.21.80.6 MB18 downloads7e32baa9c9de…Get
  • v25.06.22-1.21.5-vulkan22 Jun 20251.21.50.3 MB44 downloads9047c2c7f25d…Get
  • v25.06.01-1.21.4-sodium1 Jun 20251.21.40.3 MB73 downloads667f0b1d3e21…Get
  • v25.06.01-1.21.4-vulkan1 Jun 20251.21.40.3 MB26 downloadsfb9eac6033a8…Get
  • 1.1.6v30 May 20251.21.40.3 MB38 downloads3afe0d54fd7c…Get
  • 1.1.628 May 20251.21.40.3 MB18 downloadsf7ada1a55b1c…Get
  • 1.1.528 May 20251.21.40.2 MB24 downloadsed014f7c2dac…Get
  • 1.1.414 Feb 20251.20.20.1 MB39 downloads6930a43040d2…Get
  • 1.1.314 Feb 20251.20.40.2 MB46 downloadse13edd3a6d4d…Get
  • 1.1.214 Feb 20251.21.30.2 MB37 downloadsfe09f1170935…Get
  • 1.1.014 Feb 20251.21.10.2 MB58 downloads0598125d5bd4…Get
  • 1.0.114 Feb 20251.20.60.2 MB28 downloadsebd30e906bf1…Get
  • 1.0.09 Feb 20251.20.60.2 MB30 downloads7b3a24b4c7f3…Get

Frequently asked

Does WelnoX work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version WelnoX 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 WelnoX support?

Everything the author has declared, from 1.20.2 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

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

The client only. There is nothing to install on the server, so it works on any server you can already join.

Which loader does WelnoX need?

Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for WelnoX?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the modpack itself.

What licence is WelnoX 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 WelnoX?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 WelnoX safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.Photon OptimizationMinecraft optimization framework prioritizing performance, simplicity, and compatibility. 1.7.10-26.1.2 across Fabric, Forge, NeoForge, and Quilt!ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 Snapshot 5 ✔fps+pvpFPS + PvP Boost is a lightweight Minecraft modpack designed to maximize performance and give players a competitive edge in PvP. With FPS-boosting optimizations and combat-focused tweaks, it delivers smoother gameplay, better responsiveness, and enhanced vi

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

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