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Memory Leak Fix (UNOFFICIAL) project artwork

CurseForge · Minecraft mod

Memory Leak Fix (UNOFFICIAL)

A standalone unofficial Fabric 1.21.1 port of Memory Leak Fix, retaining three upstream fixes for Minecraft memory leaks.

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

Quick answer

Which Memory Leak Fix (UNOFFICIAL) release should I use?

Updated 22 days ago
beta file 1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric)
Game version 1.21.1
Loader Fabric

Memory Leak Fix (UNOFFICIAL) 1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric) targets 1.21.1 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 Memory Leak Fix (UNOFFICIAL) 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 Memory Leak Fix (UNOFFICIAL) 1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric) need?

1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric). 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 Memory Leak Fix (UNOFFICIAL) without breaking your instance.

Built for Memory Leak Fix (UNOFFICIAL) 1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric). Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric). It targets 1.21.1 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 1.1.5+1.21.1-port.1 (Minecraft 1.21.1, Fabric). It opens that exact file at the source.

About this project

What does Memory Leak Fix (UNOFFICIAL) add?

Memory Leak Fix (UNOFFICIAL)

A standalone Fabric port of Memory Leak Fix for Minecraft 1.21.1, based on the upstream 1.1.5 code by FX - PR0CESS. It carries three upstream leak fixes adapted for this Minecraft version.

Compatibility

  • Minecraft 1.21.1
  • Fabric Loader 0.16.14 or newer
  • Java 21 or newer

Testing

The port was built and smoke-tested in the Fabric development client. It reached the title screen with all three mixins applied, and a short singleplayer world smoke test saved and closed cleanly. The final standalone release JAR has not yet had a separate installed-profile or long-duration stress test. No performance benchmark is claimed.

Source, license, and credits

Port source repository: https://github.com/JustHari01/MemoryLeakFix-1.21.1-Fabric-Port

Upstream project: https://github.com/FxMorin/MemoryLeakFix

The port is licensed under LGPL-2.1-only. The complete source archive is also included with the release files. Original copyright and license notices are retained; see the source archive for the full license and port notice.

This is an unofficial port maintained by JustHari01 and is not endorsed by or affiliated with FX - PR0CESS.

AI disclosure: AI tools assisted with porting, compatibility work, and release documentation; the published changes were reviewed and tested by the maintainer.

Project description from CurseForge.

Pick your setup

Memory Leak Fix (UNOFFICIAL) by Minecraft version and loader

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1 available setups

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Recent files

Memory Leak Fix (UNOFFICIAL) versions and loaders

1 of 1 releases match

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