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AllTheLeaks (Memory Leak Fix)Minecraft mod for 1.21.1

This mod fixes memory leaks of some mods, Neoforge and Minecraft until they implement their fixes.

newest supported release 1.21.1Server UtilityBug FixesPerformance
Latest version
alltheleaks-1.1.4+1.20.1-forge.jar
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
80.2M
Updated
21 h ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version AllTheLeaks (Memory Leak Fix) declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023

Download

From AllTheLeaks (Memory Leak Fix)’s own host. Nothing is re-hosted here.

Browse 46 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    alltheleaks-1.1.13+1.21.1-neoforge.jar · 22 Sept 2026 · alltheleaks-1.1.13+1.21.1-neoforge.jar

    Get NeoForge

Most recently published release

alltheleaks-1.1.4+1.20.1-forge.jarrelease15 Oct 2026

alltheleaks-1.1.4+1.20.1-forge.jar · 1.2 MB · for 1.20.1 · Forge

Download this release
b4935ae90526…
Older versions24
  • alltheleaks-1.1.13+1.21.1-neoforge.jar22 Sept 20261.21.10.5 MBea11d23e0f8c…Get
  • alltheleaks-1.1.3+1.20.1-forge.jar31 Aug 20261.20.11.2 MB428d98891486…Get
  • alltheleaks-1.1.2+1.20.1-forge.jar30 Aug 20261.20.11.2 MB6dd556003adc…Get
  • alltheleaks-1.1.12+1.21.1-neoforge.jar14 Aug 20261.21.10.5 MBd69b9e98e957…Get
  • alltheleaks-1.1.11+1.21.1-neoforge.jar1 Aug 20261.21.10.5 MBf94d617b2e88…Get
  • alltheleaks-1.1.10+1.21.1-neoforge.jar11 Jul 20261.21.10.5 MB7.3k downloads00bf99e3a092…Get
  • alltheleaks-1.1.9+1.21.1-neoforge.jar15 May 20261.21.10.5 MB23.0k downloads2e9d1bc9bb98…Get
  • alltheleaks-1.1.8+1.21.1-neoforge.jar20 Apr 20261.21.10.5 MB15.6k downloadsf91b11a1cfa7…Get
  • alltheleaks-1.1.7+1.21.1-neoforge.jar6 Mar 20261.21.10.5 MB24.7k downloadsa36da3b274d7…Get
  • alltheleaks-1.1.6+1.21.1-neoforge.jar31 Dec 20251.21.10.5 MB3.2k downloads1621f1bff2b9…Get
  • alltheleaks-1.1.4+1.21.1-neoforge.jar2 Dec 20251.21.11.1 MB1.1M downloads2ea478d2cf37…Get
  • alltheleaks-1.1.3+1.21.1-neoforge.jar25 Nov 20251.21.11.1 MB4.7k downloads31ec5abc2fe5…Get
  • alltheleaks-1.1.1+1.20.1-forge.jar18 Nov 20251.20.11.1 MB7.2k downloads3c43c2e76093…Get
  • alltheleaks-1.1.2+1.21.1-neoforge.jar15 Nov 20251.21.11.1 MB28.9k downloadsa690843bdf51…Get
  • alltheleaks-1.1.1+1.21.1-neoforge.jar11 Nov 20251.21.11.1 MB20.3k downloads469cdd300894…Get
  • alltheleaks-1.1.0+1.20.1-forge.jar5 Nov 20251.20.11.1 MB6.5k downloadsd38ae474a0d8…Get
  • alltheleaks-1.1.0+1.21.1-neoforge.jar5 Nov 20251.21.11.0 MB25 downloads2bf6a4b2a11d…Get
  • alltheleaks-1.0.8+1.20.1-forge.jar14 Oct 20251.20.11.1 MB9.5k downloadscc58ad397f1e…Get
  • alltheleaks-1.0.6+1.21.1-neoforge.jar13 Oct 20251.21.11.0 MB5.0k downloads5ab90723241e…Get
  • alltheleaks-1.0.7+1.20.1-forge.jar4 Oct 20251.20.11.1 MB219.0k downloadscd9b1b97c299…Get
  • alltheleaks-1.0.5+1.21.1-neoforge.jar4 Oct 20251.21.11.0 MB0b99c3241468…Get
  • alltheleaks-1.0.6+1.20.1-forge.jar28 Sept 20251.20.11.1 MB7.6k downloads0a413f6fd8c0…Get
  • alltheleaks-1.0.4+1.21.1-neoforge.jar27 Sept 20251.21.11.0 MB1.3k downloads829677dcaf8c…Get
  • alltheleaks-1.0.5+1.20.1-forge.jar27 Sept 20251.20.11.1 MB0f1f9fe61a05…Get

Frequently asked

Does AllTheLeaks (Memory Leak Fix) work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version AllTheLeaks (Memory Leak Fix) declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does AllTheLeaks (Memory Leak Fix) support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does AllTheLeaks (Memory Leak Fix) support?

NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for AllTheLeaks (Memory Leak Fix)?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install AllTheLeaks (Memory Leak Fix)?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download AllTheLeaks (Memory Leak Fix) safely?

Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from CurseForge, where the author last updated it on 29 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .