Minecraft isn’t immune to memory leaks whether from the game engine itself or third-party mods. Over time, these leaks can cause lag, crashes, or increasing RAM usage that slows down your system. The Memory Leak Fix Mod (1.20.6, 1.20.1) targets these hidden inefficiencies by patching known memory leaks on both the client and server sides. It’s a lightweight, plug-and-play mod that complements your existing optimization stack and helps your game run smoother for longer sessions.
Features:
- Fixes memory leaks in Minecraft’s core code
Addresses common leak points that cause memory usage to rise unnecessarily over time, especially during extended play sessions. - Improves both client and server performance
Reduces memory strain whether you’re playing solo, hosting a server, or running large modpacks. - Works well with other optimization mods
Recommended to use alongside: - Reduces RAM pressure
Keeps memory usage more stable over time, helping prevent stutters, frame drops, or crashes due to memory exhaustion. - No gameplay changes
Purely a backend mod doesn’t affect visuals, mechanics, or world generation. - Supports both Fabric and Forge
Compatible with most modern mod loaders and easy to integrate into any performance-focused modpack.
Screenshots:
Requires:
How to install:
How To Download & Install Mods with Minecraft Forge
How To Download & Install Fabric Mods
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Why use Memory Leak Fix Mod?
Memory leaks are one of Minecraft’s most frustrating performance issues especially in large modpacks or on servers that run for hours at a time. The Memory Leak Fix Mod is designed to quietly fix these problems under the hood, reducing the long-term memory footprint and helping your game stay fast and stable.
It’s especially valuable if:
- You notice RAM usage climbing over time
- Your game crashes after long play sessions
- You’re running a server that slowly degrades in performance
- You’re already using Lithium, Starlight, or other optimizers
FAQs
Does this mod fix all memory leaks in Minecraft?
It patches several known issues, but may not cover every possible leak—especially those from external mods. Still, it significantly reduces long-term memory buildup.
Is this mod safe to use with other performance mods?
Yes. It is designed to work alongside mods like LazyDFU, Lithium, FerriteCore, and others for even better performance.
Is it client-side or server-side?
It works on both. You should install it on both client and server for best results.
Will it reduce RAM usage immediately?
Yes. It helps prevent memory from being wasted, and you’ll likely see reduced RAM use and fewer memory-related slowdowns over time.
Which mod loaders are supported?
Memory Leak Fix Mod is available for both Fabric and Forge.
Download links
- Forge Version:download Download file
- Fabric / Quilt Version:download Download file
- Forge Version:download Download file
- Fabric / Quilt Version:download Download file
