Menu

mod

LightSpeedReMinecraft mod for 1.21.1

Reduces your waiting time by loading modpacks significantly faster (currently 48% - 71%)

client onlynewest supported 1.21.1UtilityGame MechanicsOptimization
Latest version
1.21.1-1.2.1
Loaders
Forge, NeoForge
Licence
LGPL-3.0-or-later
Downloads
995.4k
Updated
30 d ago
Available on
Modrinth

Minecraft versions

Every version LightSpeedRe declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From LightSpeedRe’s own host. Nothing is re-hosted here.

1.21.1-1.2.1release17 Jul 2026

lightspeed-1.21.1-1.2.1.jar · 0.1 MB · for 1.21.1

Download latest
8d991f88db56
Older versions12
  • 1.21.1-1.2.0hotfix412 Jul 20261.21.10.1 MB844 downloads2fceff95c310Get
  • 1.21.1-1.2.0hotfix33 Jul 20261.21.10.1 MB1.6k downloads3416a6a3ccb4Get
  • 1.21.1-1.2.0hotfix22 Jul 20261.21.10.1 MB82 downloadsf7a0801a6f6cGet
  • 1.20.1-1.2.0hotfix22 Jul 20261.20.10.1 MB22.3k downloads9c182418aab2Get
  • 1.21.1-1.2.0hotfix1 Jul 20261.21.10.1 MB30 downloads6d8b03903d34Get
  • 1.20.1-1.2.0hotfix1 Jul 20261.20.10.1 MB188 downloads6d9f67270014Get
  • 1.21.1-1.2.01 Jul 20261.21.10.1 MB14 downloads49e4248693b8Get
  • 1.20.1-1.2.01 Jul 20261.20.10.1 MB139 downloadsd5eaa9cd09d3Get
  • 1.20.1-1.1.2hotfix29 Nov 20251.20.10.0 MB743.6k downloadsd795acc8f161Get
  • 1.20.1-1.1.229 Nov 20251.20.10.0 MB403 downloads418f02e612daGet
  • 1.20.1-1.1.128 Nov 20251.20.10.0 MB424 downloads96d7debcca74Get
  • 1.20.1-1.1.021 Nov 20251.20.10.0 MB27.1k downloads3be677e746f9Get

Frequently asked

Does LightSpeedRe work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version LightSpeedRe 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 LightSpeedRe 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 LightSpeedRe on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does LightSpeedRe support?

Forge, NeoForge. 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 LightSpeedRe?

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 LightSpeedRe under?

LGPL-3.0-or-later, 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 LightSpeedRe?

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 LightSpeedRe 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.

Last checked 22 d 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? .