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FastFix project artwork

CurseForge · Minecraft mod

FastFix

A lightweight Minecraft optimization mod focused on higher FPS and smoother gameplay.

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

Quick answer

Which FastFix release should I use?

Updated 28 days ago
Latest stable file fastfix-1.0.0.jar
Game version 1.21.11
Loader Fabric

fastfix-1.0.0.jar targets 1.21.11 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

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

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does fastfix-1.0.0.jar need?

fastfix-1.0.0.jar. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add FastFix without breaking your instance.

Built for fastfix-1.0.0.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use fastfix-1.0.0.jar. It targets 1.21.11 with Fabric; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside fastfix-1.0.0.jar. It opens that exact file at the source.

About this project

What does FastFix add?

FastFix

FastFix is a lightweight Minecraft optimization mod focused on improving FPS, reducing unnecessary performance overhead, and making gameplay feel smoother.

Features

* Higher and more stable FPS
* Improved frame times
* Reduced client-side performance overhead
* Lightweight and easy to use
* Designed to work alongside other optimization mods

No complicated setup. Just install FastFix and play.

Project description from CurseForge.

Pick your setup

FastFix by Minecraft version and loader

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

1 available setups

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

Recent files

FastFix versions and loaders

1 of 1 releases match

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

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