Menu

mod

LibyMinecraft mod for 1.21.1

Registration and MultiBlock Library

client and servernewest supported 1.21.1Library
Latest version
3.0.0.0-1.20.1
Loader
Fabric
Licence
GPL-3.0-or-later
Downloads
111.7k
Updated
11 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Liby servers

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

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

Screenshots

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.20.1Fabric17+declared12 Jun 2023
1.19.2Fabric17+declared5 Aug 2022

Download

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

3.0.0.0-1.20.1alpha18 Oct 2025

liby-3.0.0.0-1.20.1.jar · 1.1 MB · for 1.20.1

Download latest
64db036e2ed9
Older versions14
  • 1.21.1-build-2.1.121 Mar 20251.21.11.5 MB9.5k downloads98ae5a435586Get
  • 1.21.1-build-2.19 Mar 20251.21.11.5 MB868 downloadsc7e45ad8e50eGet
  • 1.20.1-build-2.09 Mar 20251.20.11.5 MB1.8k downloads5b07c80248a0Get
  • 1.21.1-build-2.026 Feb 20251.21.11.5 MB301 downloads1ecc2754a88dGet
  • 1.19.2-build-2.116 Feb 20251.19.21.5 MB777 downloadsb6ab48b1c357Get
  • 1.19.2-build-2.016 Jan 20251.19.21.5 MB216 downloads9c821ba90583Get
  • 1.20.1-build-1.014 Dec 20241.20.11.5 MB194 downloads6c40fe7b0b5fGet
  • 1.19.2-build-1.47 Dec 20241.19.21.5 MB129 downloads5d693fc06311Get
  • 1.19.2-build-1.33 Dec 20241.19.21.5 MB123 downloads2816be6b9219Get
  • 1.21.1-build-1.429 Nov 20241.21.11.5 MB97.2k downloads665cb2d2fa4dGet
  • 1.21.1-build-1.310 Oct 20241.21.11.5 MB857 downloads5eac897c7135Get
  • 1.21.1-build-1.26 Oct 20241.21.11.5 MB235 downloads60040ae3604aGet
  • 1.21.1-build-1.15 Oct 20241.21.10.6 MB128 downloads3ff36c258537Get
  • 1.21.1-build-1.04 Oct 20241.21.10.6 MB185 downloadsb8f0b745cdd7Get

Frequently asked

Does Liby work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Liby 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 Liby support?

Everything the author has declared, from 1.19.2 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 Liby on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Liby support?

Fabric. 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 Liby?

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 Liby under?

GPL-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 Liby?

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 Liby 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 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? .