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modpack

ClientRefineMinecraft modpack for 1.21.11

A client-side optimization modpack to refine and enhance Minecraft's graphics, quality, and FPS!

client onlynewest supported 1.21.11OptimizationLightweightMultiplayer
Latest version
4.1
Minecraft
1.21.5 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
210
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host ClientRefine servers

One click and ClientRefine 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 ClientRefine 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
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025

Download

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

4.1release19 May 2026

ClientRefine 4.1.mrpack · 76 KB · for 1.21.11

Download latest
8c7965f74f6b…
Older versions9
  • 4.030 Mar 20261.21.1174 KB32 downloads6b84ecea6b8c…Get
  • 3.31 Feb 20261.21.1056 KB15 downloads1b2e47016f1b…Get
  • 3.221 Jan 20261.21.1050 KB11 downloads28ff6f61c67b…Get
  • 3.116 Jan 20261.21.1045 KB15 downloadsfb74a74f3dbb…Get
  • 1.3.016 Jan 20261.21.1011 KB12 downloadse5be132b63f6…Get
  • 1.2.119 Nov 20251.21.8, 1.21.7, 1.21.6, 1.21.511 KB38 downloads430c03eabb50…Get
  • 1.2.018 Nov 20251.21.6, 1.21.511 KB16 downloadsb3d9027a4228…Get
  • 1.1.030 Sept 20251.21.511 KB17 downloads07efe1a28e2d…Get
  • 1.0.019 Aug 20251.21.50.4 MB26 downloadsbc232efd5460…Get

Frequently asked

Does ClientRefine work on Minecraft 1.21.11?

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

Everything the author has declared, from 1.21.5 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 ClientRefine on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does ClientRefine support?

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 ClientRefine?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the modpack itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is ClientRefine under?

LicenseRef-All-Rights-Reserved, 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 ClientRefine?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download ClientRefine 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.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)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 ✔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!Just Enough OptimizationJust Enough Optimization - Focused on low memory usage and higher avarege fps. Made for low-end pc so everyone can run Minecraft

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

Not indexed yet. Score 53 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

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