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modpack

Xavier OptimizedMinecraft modpack for 1.21.11

A modpack contains mods that improve and optimize the vanilla game experience without changing the game's mechanism.

client onlynewest supported 1.21.11OptimizationLightweightMultiplayer
Latest version
v1.0.0-fabric-mc1.21.11
Minecraft
1.7.10 to 1.21.11
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
BSD-3-Clause
Downloads
26.7k
Updated
7 mo ago
Available on
Modrinth
Space NodePartner

Host Xavier Optimized servers

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

  • 1.21.11
  • NeoForge
  • Forge
  • 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 Xavier Optimized declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.11NeoForge, Forge, Fabric21+declared9 Dec 2025
1.21.10Fabric, NeoForge, Forge21+declared7 Oct 2025
1.21.9Forge, NeoForge, Fabric21+declared30 Sept 2025
1.21.9-pre2Forge, NeoForge, Fabric21+declared19 Sept 2025
1.21.8Forge, NeoForge, Fabric21+declared17 Jul 2025
1.21.7NeoForge, Forge, Fabric21+declared30 Jun 2025
1.21.6NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.5Fabric, NeoForge, Forge21+declared25 Mar 2025
1.21.4Forge, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, NeoForge, Fabric21+declared23 Oct 2024
1.21.2NeoForge, Fabric, Forge21+declared22 Oct 2024
1.21.1Forge, Fabric, NeoForge21+declared8 Aug 2024
1.21NeoForge, Forge, Fabric21+declared13 Jun 2024
1.20.6Fabric, NeoForge, Forge21+declared29 Apr 2024
1.20.4Forge, NeoForge, Fabric17+declared7 Dec 2023
1.20.1Forge, NeoForge, Fabric17+declared12 Jun 2023
1.19.4Forge, NeoForge, Fabric17+declared14 Mar 2023
1.18.2Forge, NeoForge, Fabric17+declared28 Feb 2022
1.17.1Forge, NeoForge, Fabric16+declared6 Jul 2021
1.16.5Forge, NeoForge, Fabric8+declared14 Jan 2021
1.12.2Forge, NeoForge, Fabric8+declared18 Sept 2017
1.8.9Forge, NeoForge, Fabric8+declared3 Dec 2015
1.7.10Forge, NeoForge, Fabric8+declared14 May 2014

Download

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

All 60 releases
v1.0.0-fabric-mc1.21.11release22 Feb 2026

Xavier Optimized 1.21.11 (Fabric) 1.0.0.mrpack · 0.2 MB · for 1.21.11

Download latest
1d80b37bfedf…
Older versions24
  • v1.0.23 Dec 20251.21.100.0 MB978 downloadsd8eae07e622f…Get
  • v1.0.1-neoforge-mc1.21.1029 Oct 20251.21.100.0 MB332 downloads79c5a21950d8…Get
  • v1.0.2-neoforge-mc1.21.929 Oct 20251.21.90.0 MB86 downloads68193315cbb8…Get
  • v1.0.1-fabric-mc1.21.1029 Oct 20251.21.100.2 MB1.1k downloadsa8d156595482…Get
  • v1.0.4-fabric-mc1.21.929 Oct 20251.21.90.2 MB167 downloadsb52235abb551…Get
  • v1.0.0-neoforge-mc1.21.1011 Oct 20251.21.100.0 MB292 downloads0e186f797088…Get
  • v1.0.1-neoforge-mc1.21.911 Oct 20251.21.90.0 MB73 downloads94ca99fbc5e1…Get
  • v1.0.0-fabric-mc1.21.1010 Oct 20251.21.100.2 MB507 downloadsf9efb8c59f41…Get
  • v1.0.3-fabric-mc1.21.910 Oct 20251.21.90.2 MB117 downloads1262cc8fc757…Get
  • v1.0.2-fabric-mc1.21.93 Oct 20251.21.90.6 MB340 downloads5ac1d04f79ca…Get
  • v1.0.0-neoforge-mc1.21.91 Oct 20251.21.90.0 MB206 downloads0f3335ac59cf…Get
  • v1.0.1-fabric-mc1.21.91 Oct 20251.21.91.5 MB175 downloads95fbaf846f9f…Get
  • v1.0.3-fabric-mc1.21.726 Sept 20251.21.70.1 MB168 downloads52f143fb4a7f…Get
  • v1.0.5-fabric-mc1.21.826 Sept 20251.21.80.1 MB1.2k downloadsb60fa71f93e8…Get
  • v1.0.3-fabric-mc1.21.626 Sept 20251.21.60.1 MB194 downloads5ce83c3ed920…Get
  • v1.0.3-fabric-mc1.21.526 Sept 20251.21.50.1 MB280 downloads2a6844408948…Get
  • v1.0.3-fabric-mc1.21.426 Sept 20251.21.30.1 MB122 downloadsae26f31a23e9…Get
  • v1.0.3-fabric-mc1.21.326 Sept 20251.21.30.1 MB39 downloadsae26f31a23e9…Get
  • v1.0.1-fabric-mc1.21.226 Sept 20251.21.20.0 MB94 downloadscce03e4e7206…Get
  • v1.0.3-fabric-mc1.21.126 Sept 20251.21.10.1 MB1.5k downloadsbf5291ad48e9…Get
  • v1.0.3-fabric-mc1.2126 Sept 20251.210.1 MB391 downloadsa2a91b816482…Get
  • v1.0.2-fabric-mc1.20.626 Sept 20251.20.60.1 MB170 downloads3e069a310526…Get
  • v1.0.2-fabric-mc1.20.226 Sept 20251.20.40.0 MB348 downloadsda8e1d98b18c…Get
  • v1.0.3-fabric-mc1.20.126 Sept 20251.20.10.1 MB2.9k downloads847528627d6d…Get

Frequently asked

Does Xavier Optimized work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Xavier Optimized 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 Xavier Optimized support?

Everything the author has declared, from 1.7.10 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 Xavier Optimized 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 Xavier Optimized need?

NeoForge, Forge, 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 Xavier Optimized?

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 Xavier Optimized under?

BSD-3-Clause, 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 Xavier Optimized?

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 Xavier Optimized 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.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 rc1 ✔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 viPhoton OptimizationMinecraft optimization framework prioritizing performance, simplicity, and compatibility. 1.7.10-26.1.2 across Fabric, Forge, NeoForge, and Quilt!

Last checked 2 mo ago against Modrinth. 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? .