Menu

mod

UnionLibMinecraft mod for 1.21.11

A library mod for all my mods

newest supported 1.21.11Library Api
Latest version
UnionLib-1.21.11-12.2-NeoForge
Minecraft
1.15.2 to 1.21.11
Java
Java 21+
Loaders
Forge, NeoForge, Fabric, Quilt
Licence
not stated
Downloads
7.5M
Updated
10 d ago
Available on
CurseForge

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Forge, NeoForge, Fabric, Quilt21+declared9 Dec 2025
1.21.10NeoForge, Forge, Quilt, Fabric21+declared7 Oct 2025
1.21.1Forge, NeoForge, Fabric, Quilt21+declared8 Aug 2024
1.21NeoForge, Forge, Quilt, Fabric21+declared13 Jun 2024
1.20.6NeoForge, Fabric, Quilt, Forge21+declared29 Apr 2024
1.20.1NeoForge, Fabric, Quilt, Forge17+declared12 Jun 2023
1.20Forge, Quilt, Fabric, NeoForge17+declared2 Jun 2023
1.19.4NeoForge, Fabric, Quilt, Forge17+declared14 Mar 2023
1.19.3NeoForge, Fabric, Quilt, Forge17+declared7 Dec 2022
1.19.2NeoForge, Fabric, Quilt, Forge17+declared5 Aug 2022
1.19.1NeoForge, Fabric, Quilt, Forge17+declared27 Jul 2022
1.19NeoForge, Fabric, Quilt, Forge17+declared7 Jun 2022
1.18.2NeoForge, Fabric, Quilt, Forge17+declared28 Feb 2022
1.18.1Forge, NeoForge, Fabric, Quilt17+declared10 Dec 2021
1.18NeoForge, Forge, Quilt, Fabric17+declared30 Nov 2021
1.17.1Quilt, NeoForge, Fabric, Forge16+declared6 Jul 2021
1.16.5Forge, NeoForge, Fabric, Quilt8+declared14 Jan 2021
1.16.4NeoForge, Fabric, Quilt, Forge8+declared29 Oct 2020
1.16.3Fabric, Quilt, Forge, NeoForge8+declared10 Sept 2020
1.16.1Forge, Quilt, NeoForge, Fabric8+declared24 Jun 2020
1.15.2NeoForge, Fabric, Quilt, Forge8+declared17 Jan 2020

Download

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

All 37 releases
UnionLib-1.21.11-12.2-NeoForgebeta4 Jan 2026

UnionLib-1.21.11-12.2-NeoForge-all.jar · 0.7 MB · for 1.21, 1.21.11

Download latest
292f53313783…
Older versions24
  • UnionLib-1.21.10-12.2-NeoForge1 Jan 20261.21, 1.21.100.7 MB0e2d8371a598…Get
  • UnionLib-1.21.11-12.2-Fabric1 Jan 20261.21.111.2 MB7c9e53eefe4f…Get
  • UnionLib-1.21.1-12.2-NeoForge1 Jan 20261.21, 1.21.10.7 MB1.0k downloads4ccbea8de2ca…Get
  • UnionLib-1.21.1-12.2-Forge1 Jan 20261.21, 1.21.11.2 MB4ad1d4bb4695…Get
  • UnionLib-1.21.1-12.2-Fabric1 Jan 20261.21, 1.21.11.2 MB1 downloadsd233f3a37e2e…Get
  • UnionLib-1.20.6-12.2-NeoForge1 Jan 20261.20.60.7 MB2c85e26b0fe3…Get
  • UnionLib-1.20.6-12.2-Forge1 Jan 20261.20.61.2 MB2c07e1269009…Get
  • UnionLib-1.20.6-12.2-Fabric1 Jan 20261.20.61.2 MB19c74337f428…Get
  • UnionLib-1.20.1-12.2-Forge1 Jan 20261.20.11.0 MBcf04f1abcf30…Get
  • UnionLib-1.20.1-12.2-Fabric1 Jan 20261.20.11.2 MBd37d2974f1f6…Get
  • UnionLib-1.21.1-12.1.1-NeoForge30 Oct 20251.21, 1.21.10.7 MB218 downloads3d3ad7a73e02…Get
  • UnionLib-1.21.1-12.1.1-Forge30 Oct 20251.21, 1.21.11.2 MB2fe64790ee1c…Get
  • UnionLib-1.21.1-12.1.1-Fabric30 Oct 20251.21, 1.21.11.2 MB912703a625ea…Get
  • UnionLib-1.20.6-12.1.1-NeoForge30 Oct 20251.20.60.7 MB89ddb746e7ea…Get
  • UnionLib-1.20.6-12.1.1-Forge30 Oct 20251.20.61.2 MBab6712a0b061…Get
  • UnionLib-1.20.6-12.1.1-Fabric30 Oct 20251.20.61.2 MBa03c93baea0e…Get
  • UnionLib-1.20.1-12.1.1-Forge30 Oct 20251.20.11.0 MB2dc6bca4a808…Get
  • UnionLib-1.20.1-12.1.1-Fabric30 Oct 20251.20.11.2 MB6da4128c5583…Get
  • UnionLib-1.21.1-12.1.0-NeoForge16 Oct 20251.21, 1.21.10.7 MB353 downloads66e37fd0a4dd…Get
  • UnionLib-1.21.1-12.1.0-Forge16 Oct 20251.21, 1.21.11.2 MB6d50893716b3…Get
  • UnionLib-1.21.1-12.1.0-Fabric16 Oct 20251.21, 1.21.11.2 MB30581cb9dd5f…Get
  • UnionLib-1.20.6-12.1.0-NeoForge16 Oct 20251.20.60.7 MB2d8e0766e06d…Get
  • UnionLib-1.20.6-12.1.0-Forge16 Oct 20251.20.61.2 MBefc9c1507e9b…Get
  • UnionLib-1.20.6-12.1.0-Fabric16 Oct 20251.20.61.2 MB598da65ed5fe…Get

Frequently asked

Does UnionLib work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version UnionLib 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 UnionLib support?

Everything the author has declared, from 1.15.2 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does UnionLib support?

Forge, NeoForge, Fabric, Quilt. 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 UnionLib?

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.

How do I install UnionLib?

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 UnionLib 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. 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.

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.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Last checked 10 d ago against CurseForge. 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? .