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FDLibMinecraft mod for 1.21.1

Collection of utilities for my mods

newest supported 1.21.1Library Api
Latest version
fdlib-1.0.9-1.20.1.jar
Loaders
Forge, NeoForge
Licence
not stated
Downloads
7.6M
Updated
6 mo ago
Available on
CurseForge

Minecraft versions

Every version FDLib 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 FDLib’s own host. Nothing is re-hosted here.

fdlib-1.0.9-1.20.1.jarrelease30 Mar 2026

fdlib-1.0.9-1.20.1.jar · 1.6 MB · for 1.20.1

Download latest
6918e71d62fa
Older versions15
  • fdlib-1.0.9-1.21.1.jar30 Mar 20261.21.10.9 MB03a171d170b2Get
  • fdlib-1.0.8-1.21.1.jar20 Feb 20261.21.10.9 MB1.1k downloads40d41190d8e8Get
  • fdlib-1.0.8-1.20.1.jar20 Feb 20261.20.11.6 MBd858549294abGet
  • fdlib-1.0.7-1.20.1-beta.jar18 Jan 20261.20.11.6 MB2.6k downloads776ac1ad54f8Get
  • fdlib-1.0.7-1.21.1.jar7 Jan 20261.21.10.9 MB642 downloads47416f75ac13Get
  • fdlib-1.0.6-1.21.1.jar3 Jan 20261.21.10.9 MB834 downloads6887d563955dGet
  • fdlib-1.0.5-1.21.1.jar29 Dec 20251.21.10.9 MB742 downloads960ec10a2b2fGet
  • fdlib-1.0.4-1.21.1.jar3 Oct 20251.21.10.7 MB818.3k downloadsaed3517de2e8Get
  • fdlib-1.0.4-1.20.1.jar3 Oct 20251.20.11.4 MBd2e315ca4dd4Get
  • fdlib-1.0.3-1.21.1.jar20 Sept 20251.21.10.7 MB737feb299dffGet
  • fdlib-1.0.3-1.20.1.jar20 Sept 20251.20.11.4 MB726fc9c2dc15Get
  • fdlib-1.0.2-1.20.1.jar18 Sept 20251.20.11.4 MB5add61a229c1Get
  • fdlib-1.0.2-1.21.1.jar7 Sept 20251.21.10.7 MBd4564e57b496Get
  • fdlib-1.0.1-1.21.1.jar1 Jun 20251.21.10.6 MB214 downloads97f495ce4162Get
  • fdlib-1.0.0-1.21.1.jar23 May 20251.21.10.6 MB27 downloadsd793e4b61772Get

Frequently asked

Does FDLib work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version FDLib 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 FDLib 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.

Which platform or loader does FDLib 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 FDLib?

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 FDLib?

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 FDLib 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.

Last checked 1 mo 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? .