Menu

mod

Lib39Minecraft mod for 1.20.1

Useful mixins, events, and utilities originating in Yttr.

client and servernewest supported 1.20.1UtilityGame MechanicsLibrary
Latest version
2.0.12+1.20.1
Minecraft
1.18.2 to 1.20.1
Java
Java 17+
Loaders
Quilt, Fabric
Licence
MIT
Downloads
31.1k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Lib39 servers

One click and Lib39 is installed with the right loader, on hardware built for it.

  • 1.20.1
  • Quilt
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Lib39 declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.20.1Quilt, Fabric17+declared12 Jun 2023
1.19.3Fabric, Quilt17+declared7 Dec 2022
1.19.2Quilt, Fabric17+declared5 Aug 2022
1.19.1Quilt, Fabric17+declared27 Jul 2022
1.18.2Fabric, Quilt17+declared28 Feb 2022

Download

From Lib39’s own host. Nothing is re-hosted here.

2.0.12+1.20.1release3 Dec 2025

lib39-2.0.12+1.20.1-all.deflated.jar · 0.3 MB · for 1.20.1

Download latest
84b48b2a7e12…
Older versions20
  • 1.5.0-experimental7+1.20.123 Jan 20251.20.10.3 MB301 downloads0ed0f41788bc…Get
  • 1.5.0-pre3+1.19.31 Feb 20231.19.30.3 MB219 downloadsa5a1cc8effa9…Get
  • 1.5.0-pre3+1.19.21 Feb 20231.19.20.3 MB3.3k downloads237674c41d8c…Get
  • 1.5.0-pre3+1.18.21 Feb 20231.18.20.3 MB183 downloadsa26a9dd0d72b…Get
  • 1.5.0-pre1+1.19.331 Dec 20221.19.30.3 MB128 downloads856f916121d1…Get
  • 1.5.0-pre1+1.19.231 Dec 20221.19.20.3 MB190 downloads0283c7cffd26…Get
  • 1.5.0-pre1+1.18.231 Dec 20221.18.20.3 MB100 downloadsa25aaeb2aff5…Get
  • 1.4.229 Dec 20221.19.2, 1.19.10.3 MB1.8k downloadsddb9e8d13fa9…Get
  • 1.4.124 Dec 20221.19.2, 1.19.10.3 MB1.5k downloads2d601df2b3f0…Get
  • 1.4.018 Dec 20221.19.2, 1.19.10.3 MB1.6k downloadsa7a006587523…Get
  • 1.3.412 Dec 20221.19.2, 1.19.10.3 MB1.7k downloadscfc21a355398…Get
  • 1.3.324 Nov 20221.19.2, 1.19.10.3 MB1.7k downloads7b4d91023542…Get
  • 1.3.111 Oct 20221.19.2, 1.19.10.3 MB2.3k downloads83f46f7467a9…Get
  • 1.2.215 Sept 20221.19.2, 1.19.10.3 MB1.8k downloads7678929589c0…Get
  • 1.2.131 Aug 20221.19.2, 1.19.10.3 MB1.8k downloads7b5c93006e47…Get
  • 1.2.030 Aug 20221.19.2, 1.19.10.3 MB1.6k downloadsff6600a0a28c…Get
  • 1.1.1329 Aug 20221.19.2, 1.19.10.3 MB1.9k downloadsf5d163858ecd…Get
  • 1.1.1226 Aug 20221.19.2, 1.19.10.3 MB1.7k downloadsa470f648107d…Get
  • 1.1.1120 Aug 20221.19.2, 1.19.10.3 MB1.9k downloadsae624f9c9265…Get
  • 1.1.1016 Aug 20221.19.2, 1.19.10.3 MB1.7k downloads623ef63dc071…Get

Frequently asked

Does Lib39 work on Minecraft 1.20.1?

Yes. 1.20.1 is the newest Minecraft version Lib39 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 Lib39 support?

Everything the author has declared, from 1.18.2 up to 1.20.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Lib39 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 Lib39 support?

Quilt, 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 Lib39?

On the newest Minecraft version it supports, Java 17 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 Lib39 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 Lib39?

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 Lib39 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Last checked 1 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? .