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Fix Attack LagMinecraft mod for 1.21.1

Fix the lag caused by excessive single damage during player attacks.

server onlynewest supported 1.21.1UtilityGame MechanicsOptimization
Latest version
1.2.0-1.21.1-Neoforge
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
160.6k
Updated
6 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Fix Attack Lag servers

One click and Fix Attack Lag is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Fix Attack Lag declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.3NeoForge, Forge17+declared4 Dec 2023
1.20.2NeoForge, Forge17+declared20 Sept 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Fix Attack Lag’s own host. Nothing is re-hosted here.

1.2.0-1.21.1-Neoforgerelease18 Mar 2026

fix_attack_lag-1.2.0-1.21.1-Neoforge.jar · 0.0 MB · for 1.21.1

Download latest
428db3963077…
Older versions4
  • 1.2.0-1.21.117 Mar 20261.21.10.0 MB197 downloads3f9ab011cb3b…Get
  • 1.2.0-1.20.13 Jul 20251.20.1, 1.20.2, 1.20.3, 1.20.40.0 MB162.6k downloads996e544b9da9…Get
  • 1.1.0-1.20.13 Jul 20251.20.1, 1.20.2, 1.20.3, 1.20.40.0 MB43 downloadsbe6d3b45fbb3…Get
  • 1.0.0-1.20.11 Jul 20251.20.1, 1.20.2, 1.20.3, 1.20.40.0 MB142 downloads6416b938e328…Get

Frequently asked

Does Fix Attack Lag work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Fix Attack Lag 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 Fix Attack Lag 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.

Do I need to install Fix Attack Lag on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does Fix Attack Lag 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 Fix Attack Lag?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Fix Attack Lag under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Fix Attack Lag?

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 Fix Attack Lag safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and 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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Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .