CurseForge · Minecraft mod
AllTheLeaks (Memory Leak Fix)
This mod fixes memory leaks of some mods, Neoforge and Minecraft until they implement their fixes.
Quick answer
Which AllTheLeaks (Memory Leak Fix) release should I use?
AllTheLeaks (Memory Leak Fix) alltheleaks-1.1.11+1.21.1-neoforge.jar targets 1.21.1 with NeoForge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is AllTheLeaks (Memory Leak Fix) required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does AllTheLeaks (Memory Leak Fix) alltheleaks-1.1.11+1.21.1-neoforge.jar need?
alltheleaks-1.1.11+1.21.1-neoforge.jar. Change the file and its required mods may change too.
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 AllTheLeaks (Memory Leak Fix) without breaking your instance.
Built for AllTheLeaks (Memory Leak Fix) alltheleaks-1.1.11+1.21.1-neoforge.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use alltheleaks-1.1.11+1.21.1-neoforge.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 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.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside alltheleaks-1.1.11+1.21.1-neoforge.jar. It opens that exact file at the source.
About this project
What does AllTheLeaks (Memory Leak Fix) add?
AllTheLeaks
📰 Introduction
This mod is designed to fix various memory leaks from mods, Minecraft and (Neo)Forge.
Many players suffer from playing their modded modpacks and eventually needing to close the game or crash after some time. This is a classic symptom of memory leak.
Our goal is to make it as much stable as possible.
🗳️ Motivation
To fill the gap between the fast pace of some modpack development and mod fixes, specially for deprecated Minecraft versions. When the original mod implement their fixes, we disable ours.
📦 Installation
Mod is available on CurseForge.
🔧 Usage
After installation, the mod will automatically apply the memory fixes that are needed.
🤔 FAQ
- Will it increase my FPS?
If you have plenty of memory, probably not. But will certainly help stability, and for people with mid to low memory it will help a ton.
Stability, meaning it will be as smooth as you just logged in through your entire gaming session. - Does it run on server?
Yes. There are some fixes that are common for server and clients. - I am using this mod, but I am still having instability over time!
I'm developing a tool and guide to make it easier for players to detect leaks.
🤝 Contributing
A guide on how to contribute with identifying memory leaks will be available soon.
📝 License
This project is licensed under the MIT License.
📬 Contact
You can reach me on All The Mods Discord with @Uncandango, you can also open your issue on Github or comment on the mod comment's section on CurseForge.
👍 Sponsors

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Project description from CurseForge.
Pick your setup
AllTheLeaks (Memory Leak Fix) by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
AllTheLeaks (Memory Leak Fix) versions and loaders
alltheleaks-1.1.11+1.21.1-neoforge.jar
1 Aug 2026
alltheleaks-1.1.10+1.21.1-neoforge.jar
11 Jul 2026
alltheleaks-1.1.9+1.21.1-neoforge.jar
15 May 2026
alltheleaks-1.1.8+1.21.1-neoforge.jar
20 Apr 2026
alltheleaks-1.1.7+1.21.1-neoforge.jar
6 Mar 2026
alltheleaks-1.1.6+1.21.1-neoforge.jar
31 Dec 2025
alltheleaks-1.1.4+1.21.1-neoforge.jar
2 Dec 2025
alltheleaks-1.1.3+1.21.1-neoforge.jar
25 Nov 2025
alltheleaks-1.1.1+1.20.1-forge.jar
18 Nov 2025
alltheleaks-1.1.2+1.21.1-neoforge.jar
15 Nov 2025
alltheleaks-1.1.1+1.21.1-neoforge.jar
11 Nov 2025
alltheleaks-1.1.0+1.20.1-forge.jar
5 Nov 2025
Looking for an older file? The official CurseForge project page is in Resources.