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AlchemyLibMinecraft mod for 1.21.5

AlchemyLib contains shared code for machines and screens. It's used by Alchemistry and other mods.

newest supported release 1.21.5Library Api
Latest version
AlchemyLib 1.21.5-1.1.9
Minecraft
1.12.2 to 1.21.5
Java
Java 21+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
23.5M
Updated
5 mo ago
Available on
CurseForge

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.5Forge, NeoForge21+declared25 Mar 2025
1.21.4NeoForge, Forge21+declared3 Dec 2024
1.21.3NeoForge, Forge21+declared23 Oct 2024
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.2NeoForge, Forge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.20Forge, NeoForge17+declared2 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.3Forge, NeoForge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18.2Forge, NeoForge17+declared28 Feb 2022
1.18Forge, NeoForge17+declared30 Nov 2021
1.16.5Forge, NeoForge8+declared14 Jan 2021
1.16.4NeoForge, Forge8+declared29 Oct 2020
1.16.3NeoForge, Forge8+declared10 Sept 2020
1.16.2Forge, NeoForge8+declared11 Aug 2020
1.15.2NeoForge, Forge8+declared17 Jan 2020
1.15.1NeoForge, Forge8+declared16 Dec 2019
1.14.4NeoForge, Forge8+declared19 Jul 2019
1.12.2NeoForge, Forge8+declared18 Sept 2017

Download

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

Browse 39 indexed releases

Most recently published release

AlchemyLib 1.21.5-1.1.9release13 Jun 2026

alchemylib-1.21.5-1.1.9.jar · 100 KB · for 1.21.5 · NeoForge

Download this release
04476ad6504f…
Older versions24
  • AlchemyLib 1.21.4-1.1.812 Jun 20261.21.4100 KB13 downloadsbb4d18fa514f…Get
  • AlchemyLib 1.21.3-1.1.712 Jun 20261.21.3100 KB6 downloads32370dfbaf62…Get
  • AlchemyLib 1.21.1-1.1.612 Jun 20261.21.199 KB4 downloadsadebf15c144e…Get
  • AlchemyLib 1.21.1-1.1.59 Jun 20261.21.198 KB5c8c4cc95072…Get
  • AlchemyLib 1.20.6-1.1.49 Jun 20261.20.698 KBa184fe9b90e3…Get
  • AlchemyLib 1.20.4-1.1.38 Jun 20261.20.497 KB6fef31001d7c…Get
  • AlchemyLib 1.20.2-1.1.28 Jun 20261.20.298 KBf05b5c17f732…Get
  • AlchemyLib - 1.20.1-1.0.3016 Jan 20241.20.199 KB4.8M downloads7942a72f2df9…Get
  • AlchemyLib - 1.18.2-1.0.2220 Jul 20231.18.297 KB254.4k downloadscbb54b17f325…Get
  • AlchemyLib - 1.20.1-1.0.2919 Jul 20231.20.199 KB2.1M downloads97e638640081…Get
  • AlchemyLib - 1.20.1-1.0.2410 Jul 20231.20.1101 KB67.7k downloads63caf0f3f904…Get
  • AlchemyLib - 1.20-1.0.2410 Jul 20231.20101 KB9.0k downloads45a28c0bfdc9…Get
  • AlchemyLib - 1.19.4-1.0.227 Jul 20231.19.4101 KB5.6k downloadsc78caf6c453a…Get
  • AlchemyLib - 1.19.3-1.0.225 Jul 20231.19.3101 KB1.4k downloadsd4dbd8bd0adb…Get
  • AlchemyLib - 1.19.2-1.0.218 May 20231.19.2101 KB2.4M downloads2ffc67b87438…Get
  • AlchemyLib - 1.19.2-1.0.2025 Feb 20231.19.298 KB749.2k downloads43ba5539928b…Get
  • AlchemyLib - 1.18.2-1.0.2021 Dec 20221.18.292 KB929.9k downloads94063a8cb53f…Get
  • AlchemyLib - 1.19.2-1.0.193 Dec 20221.19.296 KB948.5k downloads563105fb8af3…Get
  • AlchemyLib - 1.19.2-1.0.183 Nov 20221.19.290 KB237.6k downloadsbaed5ff61e3c…Get
  • AlchemyLib - 1.19.2-1.0.1631 Oct 20221.19.2, 1.18.286 KB876 downloads7e2e3ec31a0c…Get
  • AlchemyLib - 1.19.2-1.0.1531 Oct 20221.19.2, 1.18.286 KB183 downloads17b99d912973…Get
  • AlchemyLib - 1.18.2-1.0.1531 Oct 20221.18.285 KB1.3k downloadsc16513beed96…Get
  • alib-1.18.2-2.jar21 Mar 20221.18.2, 1.1850 KB135.8k downloads3b2e848cc8fd…Get
  • alib-1.18.2-1.jar16 Mar 20221.18.2, 1.1851 KB434 downloadsae9840cbbe94…Get

Frequently asked

Does AlchemyLib work on Minecraft 1.21.5?

Yes. 1.21.5 is the newest Minecraft version AlchemyLib 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 AlchemyLib support?

Everything the author has declared, from 1.12.2 up to 1.21.5. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does AlchemyLib 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 AlchemyLib?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install AlchemyLib?

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 AlchemyLib 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Details from CurseForge, where the author last updated it on 13 Jun 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .