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FerriteCore
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FerriteCore

by malte0811 โ€ข Downloads: 0 โ€ข Followers: 0
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This mod reduces the memory usage of Minecraft in a few different ways. A high-level technical description of the changes is available here.

The amount of memory saved will depend on the pack. In version 2.5.9 of All Of Fabric 3 it reduces the RAM usage (heap size) from 1,792 MB to 984 MB. For comparison the same setup with Hydrogen instead of FerriteCore uses 1,335 MB.
These values were measured after generating a world with a fixed seed and waiting for two minutes. The project picture is a cropped version of this picture.

FAQ

Should I install this on the server or just on the client?

Some optimizations are client-side only, but there are some rather high-impact optimizations that are relevant on the server too. So you should install it on both sides.

Is this compatible with [other mod]?

Most likely yes. The only exception is Hydrogen, which is compatible with all recent FerriteCore versions on Minecraft versions where Hydrogen is officially released. This means that 1.18+ builds are not compatible with Hydrogen, since it has been officially archived and won't receive any releases on these versions.

All Versions

+ Add Version
Name Game version Platforms Published Downloads Actions
26.3 26.2 26.1.x
Fabric
8h ago 1
26.3 26.2 26.1.x
Neoforge
8h ago 1
1.21.11
Fabric
8h ago 1
1.21.11
Neoforge
8h ago 1
1.21.x
Fabric
8h ago 1
1.21.x
Neoforge
8h ago 1
1.21.x
Fabric
8h ago 1
1.21.x
Neoforge
8h ago 1
1.21.4
Fabric
8h ago 1
1.21.4
Neoforge
8h ago 1
1.21.1
Fabric
8h ago 1
1.21.1
Neoforge
8h ago 1
1.21.11
Fabric
8h ago 1
1.21.11
Neoforge
8h ago 1
1.21.x
Neoforge
8h ago 1
1.21.x
Fabric
8h ago 1
1.21.x
Neoforge
8h ago 1
1.21.x
Fabric
8h ago 1
1.21.x
Neoforge
8h ago 1
1.21.4
Neoforge
8h ago 1
1.21.4
Fabric
8h ago 1
1.21.3
Fabric
8h ago 1
1.21.1
Fabric
8h ago 1
1.21.x
Neoforge
8h ago 1
1.21.3
Fabric
8h ago 1
1.21.1
Neoforge
8h ago 1
1.21.1
Fabric
8h ago 1
1.21.1
Fabric
8h ago 1
1.21.1
Neoforge
8h ago 1
1.21.x
Fabric
8h ago 1
1.21.x
Neoforge
8h ago 1
1.20.x
Fabric
8h ago 1
1.20.x
Neoforge
8h ago 1
1.20.5
Fabric
8h ago 1
1.20.5
Neoforge
8h ago 1
1.20.4
Fabric Quilt
8h ago 1
1.20.4
Neoforge
8h ago 1
1.20.2
Neoforge
8h ago 1
1.20.x
Forge Neoforge
8h ago 1
1.20.x
Fabric Quilt
8h ago 1
1.20.x
Forge Neoforge
8h ago 1
1.20.x
Fabric Quilt
8h ago 1
1.19.4
Forge
8h ago 1
1.19.4
Fabric Quilt
8h ago 1
1.19.3
Forge
8h ago 1
1.19.3
Fabric Quilt
8h ago 1
1.19.2
Forge
8h ago 1
1.19.2
Fabric Quilt
8h ago 1
1.16.5
Fabric
8h ago 1
1.16.5
Forge
8h ago 1
1.18.2
Forge
8h ago 1
1.19.2
Forge
8h ago 1
1.19.x
Forge
8h ago 1
1.19.x
Fabric Quilt
8h ago 1
1.19
Forge
8h ago 1
1.18.2
Forge
8h ago 1
1.18.2
Fabric Quilt
8h ago 1
1.18.2
Fabric
8h ago 1
1.18.1
Fabric
8h ago 1
1.18.1
Fabric
8h ago 1
1.18.1
Fabric
8h ago 1
1.18
Fabric
8h ago 1
1.16.5
Fabric
8h ago 1
1.17.1
Fabric
8h ago 1
1.17.1
Fabric
8h ago 1
1.16.5
Fabric
8h ago 1
1.17.1
Fabric
8h ago 1
1.16.5
Fabric
8h ago 1
1.17
Fabric
8h ago 1
1.17
Fabric
8h ago 1
1.16.5
Fabric
8h ago 1
๐Ÿ–ผ๏ธ

No gallery images uploaded.

  • Update to Minecraft 26.1

  • Update to Minecraft 26.1

  • Port changes from build 7.0.3 to 1.21.11
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.11
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.9
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.9
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.5
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.5
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.4
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Port changes from build 7.0.3 to 1.21.4
  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Reduce memory usage of data component patches
  • Fix loading slowdown with ModernFix dynamic resources

  • Update to Minecraft 1.21.11

  • Update to Minecraft 1.21.11

  • Fix crash with small threading detector
  • Fix warning in log when Lithium is installed

  • Fix crash with small threading detector
  • Fix warning in log when Lithium is installed

  • Update to NeoForge changes on 1.21.9
  • Since this only affects NeoForge, there is no Fabric equivalent of this release

  • Initial port to Minecraft 1.21.5
  • Since the model system has been rewritten entirely, all optimizations related to it have been removed for the time
being. They will be reevaluated and reimplemented if appropriate over the coming weeks/months.

  • Initial port to Minecraft 1.21.5
  • Since the model system has been rewritten entirely, all optimizations related to it have been removed for the time
being. They will be reevaluated and reimplemented if appropriate over the coming weeks/months.

  • Use event to register reload listener on NeoForge
  • This fixes a crash on the latest NeoForge builds
  • Since it only affects NeoForge, there is no Fabric equivalent of this release.

  • Update to Minecraft 1.21.4
  • The code is identical to release 7.1.0, but on Fabric a recompile is required due to a mapping issue. Therefore
there is no dedicated 7.1.1 build for NeoForge.

  • Upload correct jar in automatic release task

  • Upload correct jar in automatic release task

  • Update to 1.21.3

  • Update to 1.21.3

  • Allow other mods to disable FerriteCore features
  • This should only be used in rare cases where something is intrinsically incompatible. Please get it touch with me if you plan to use this in your mod, maybe we can find a different solution.

  • Allow other mods to disable FerriteCore features
  • This should only be used in rare cases where something is intrinsically incompatible. Please get it touch with me if you plan to use this in your mod, maybe we can find a different solution.

[7.0.1-fabric] 7.0.1-fabric by malte0811 on Oct 07, 2026
Download
  • Improve error message when accessing invalid block properties
  • Fix compatibility with Lithium's NeoForge port
  • Improve error message when accessing invalid block properties
[7.0.0-fabric] 7.0.0 (Fabric) by malte0811 on Oct 07, 2026
Download
  • Update to 1.21.0
  • A slight/theoretical improvement of startup performance (embeddedt)

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