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KubeJS Iron's SpellsMinecraft mod for 1.21.1

An addon for KubeJS and Iron's Spells and Spellbooks that allows for creating new spells.

newest supported release 1.21.1MagicUtility QolAdventure RpgMc Addons
Latest version
KubeJS Iron's Spells 6.5-3.16-r3
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
2.8M
Updated
18 d ago
Available on
CurseForge

Minecraft versions

Every version KubeJS Iron's Spells 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
1.19.2Forge, NeoForge17+declared5 Aug 2022

Download

From KubeJS Iron's Spells’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    KubeJS Iron's Spells 4.0.3 · 18 Nov 2025 · irons_spells_js-4.0.3.jar

    Get NeoForge

Most recently published release

KubeJS Iron's Spells 6.5-3.16-r3release17 Oct 2026

irons_spells_js-1.20.1-6.5-3.16-r3-release.jar · 0.3 MB · for 1.20.1 · Forge

Download this release
0b53c1995430…
Older versions24
  • KubeJS Iron's Spells 6.5-3.16-r216 Oct 20261.20.10.3 MB8d9f76466913…Get
  • KubeJS Iron's Spells 6.5-3.16-r116 Oct 20261.20.10.3 MBfc159904fdbb…Get
  • KubeJS Iron's Spells 6.5-3.14-r215 Mar 20261.20.10.3 MB115 downloadsd4ae87daa000…Get
  • KubeJS Iron's Spells 6.5-3.14-r113 Mar 20261.20.10.3 MB308 downloads193913ef78f0…Get
  • KubeJS Iron's Spells 4.0.318 Nov 20251.21.10.1 MB150.4k downloads0481395c5847…Get
  • KubeJS Iron's Spells 4.0.222 May 20251.21.10.1 MB203.3k downloadsffc302eb160e…Get
  • KubeJS Iron's Spells 4.0.12 Apr 20251.21.10.1 MB2.1k downloads167c8fcc95fa…Get
  • KubeJS Iron's Spells 4.0.030 Mar 20251.21.10.1 MB60 downloads34a586197a4c…Get
  • KubeJS Iron's Spells 3.0.119 Jan 20251.19.20.1 MB5.1k downloadsd06b48b82ced…Get
  • KubeJS Iron's Spells 3.1.119 Sept 20241.20.10.1 MB52.4k downloadsc43a02e22e29…Choose file on publisher ↗
  • KubeJS Iron's Spells 3.1.029 Jul 20241.20.10.1 MB15.6k downloadsc6dab2d13f6f…Choose file on publisher ↗
  • KubeJS Iron's Spells 3.0.029 Jul 20241.19.20.1 MB3.5k downloadsce2a6540d6a3…Get
  • KubeJS Iron's Spells 2.1.25 Jul 20241.20.10.1 MB4.0k downloads3cb8866823ee…Choose file on publisher ↗
  • KubeJS Iron's Spells 2.1.19 Apr 20241.20.195 KB9.7k downloadsd5c6f74b7b4b…Choose file on publisher ↗
  • KubeJS Iron's Spells 2.0.19 Apr 20241.19.282 KB159.2k downloadsb5e6ea137f2f…Get
  • KubeJS Iron's Spells 2.1.08 Apr 20241.20.195 KB262 downloads0cdefa707e8f…Choose file on publisher ↗
  • KubeJS Iron's Spells 2.0.08 Apr 20241.19.281 KB86 downloads78a87daeab48…Get
  • KubeJS Iron's Spells 1.1.215 Mar 20241.20.149 KB2.8k downloads88a442113cc2…Choose file on publisher ↗
  • KubeJS Iron's Spells 1.0.215 Mar 20241.19.249 KB2.1k downloads5ce2d774f9e5…Get
  • KubeJS Iron's Spells 1.1.110 Mar 20241.20.145 KB413 downloads1a54cdd9d0e4…Choose file on publisher ↗
  • KubeJS Iron's Spells 1.0.17 Mar 20241.19.245 KB117 downloadsf9aade41d125…Get
  • KubeJS Iron's Spells 1.1.04 Mar 20241.20.121 KB355 downloads7556679de036…Choose file on publisher ↗
  • KubeJS Iron's Spells 1.0.02 Mar 20241.19.221 KB77 downloadsabc21b91ea01…Get
  • KubeJS Iron's Spells 0.0.129 Feb 20241.19.214 KB66 downloads13393855a47a…Get

Frequently asked

Does KubeJS Iron's Spells work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version KubeJS Iron's Spells 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 KubeJS Iron's Spells 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.

Which platform or loader does KubeJS Iron's Spells 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 KubeJS Iron's Spells?

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 KubeJS Iron's Spells?

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 KubeJS Iron's Spells 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 17 Oct 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? .