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Kotlin for ForgeMinecraft mod for 26.3

Adds a Kotlin language loader and provides some optional utilities.

newest supported release 26.3Library Api
Latest version
Kotlin for Forge 6.4.0
Minecraft
1.14 to 26.3
Java
Java 25+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
208.8M
Updated
16 d ago
Available on
CurseForge

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
26.3Forge, NeoForge25+declared15 Sept 2026
26.2Forge, NeoForge25+declared16 Jun 2026
26.1.2NeoForge, Forge25+declared9 Apr 2026
26.1.1NeoForge, Forge25+declared1 Apr 2026
26.1NeoForge, Forge25+declared24 Mar 2026
1.21.11NeoForge, Forge21+declared9 Dec 2025
1.21.10Forge, NeoForge21+declared7 Oct 2025
1.21.9NeoForge, Forge21+declared30 Sept 2025
1.21.8NeoForge, Forge21+declared17 Jul 2025
1.21.7NeoForge, Forge21+declared30 Jun 2025
1.21.6NeoForge, Forge21+declared17 Jun 2025
1.21.5Forge, NeoForge21+declared25 Mar 2025
1.21.4NeoForge, Forge21+declared3 Dec 2024
1.21.3Forge, NeoForge21+declared23 Oct 2024
1.21.2Forge, NeoForge21+declared22 Oct 2024
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.21NeoForge, Forge21+declared13 Jun 2024
1.20.6Forge, NeoForge21+declared29 Apr 2024
1.20.5Forge, NeoForge21+declared23 Apr 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.3NeoForge, Forge17+declared4 Dec 2023
1.20.2Forge, NeoForge17+declared20 Sept 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.20NeoForge, Forge17+declared2 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.3NeoForge, Forge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1Forge, NeoForge17+declared27 Jul 2022
1.19NeoForge, Forge17+declared7 Jun 2022
1.18.2Forge, NeoForge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.18NeoForge, Forge17+declared30 Nov 2021
1.17.1Forge, NeoForge16+declared6 Jul 2021
1.17Forge, NeoForge16+declared8 Jun 2021
1.16.5Forge, NeoForge8+declared14 Jan 2021
1.16.4Forge, NeoForge8+declared29 Oct 2020
1.16.3Forge, NeoForge8+declared10 Sept 2020
1.16.2NeoForge, Forge8+declared11 Aug 2020
1.16.1NeoForge, Forge8+declared24 Jun 2020
1.16Forge, NeoForge8+declared23 Jun 2020

8 older versions not shown.

Download

From Kotlin for Forge’s own host. Nothing is re-hosted here.

Browse 41 indexed releases

Most recently published release

Kotlin for Forge 6.4.0release10 Oct 2026

kotlinforforge-6.4.0-all.jar · 6.9 MB · for 26.3, 26.2, 26.1.2, 26.1.1, 26.1 +3 more · NeoForge

Download this release
4e5da9058aea…
Older versions24
  • Kotlin for Forge 5.12.028 Jun 20261.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4 +5 more6.9 MB20.7k downloadsa2032c921e93…Choose file on publisher ↗
  • Kotlin for Forge 6.3.028 Jun 202626.2, 26.1.2, 26.1.1, 26.1, 1.21.11 +2 more6.9 MB13262b4f867d…Get
  • Kotlin for Forge 6.2.010 Mar 202626.1.2, 26.1.1, 26.1, 1.21.11, 1.21.10 +1 more6.6 MB20.6k downloadsa28b52a4e21b…Get
  • Kotlin for Forge 5.11.017 Jan 20261.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1 +2 more6.6 MB7.2M downloadsa8b9f1233336…Choose file on publisher ↗
  • Kotlin for Forge 6.1.017 Jan 20261.21.11, 1.21.10, 1.21.96.6 MB5.9k downloads38c3902bce25…Get
  • Kotlin for Forge 4.12.03 Dec 20251.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +2 more7.1 MB24.7k downloads962fdb760409…Choose file on publisher ↗
  • Kotlin for Forge 6.0.019 Oct 20251.21.11, 1.21.10, 1.21.96.4 MB52.3k downloads975db7bbe66d…Choose file on publisher ↗
  • Kotlin for Forge 5.10.013 Sept 20251.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4 +5 more6.4 MB20 downloadscdde4af2f1ce…Choose file on publisher ↗
  • Kotlin for Forge 5.9.029 Jun 20251.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4 +5 more6.2 MB511.5k downloads49ff2bd85fd6…Choose file on publisher ↗
  • Kotlin for Forge 5.8.05 May 20251.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.2 +3 more6.2 MB1.8M downloadsd979656ab0cc…Choose file on publisher ↗
  • Kotlin for Forge 5.7.09 Dec 20241.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1 +2 more6.1 MB4.5M downloadsf276d27f2930…Choose file on publisher ↗
  • Kotlin for Forge 5.6.021 Oct 20241.21.3, 1.21.2, 1.21.1, 1.21, 1.20.66.1 MB1.1M downloads6f0dad91b8a7…Choose file on publisher ↗
  • Kotlin for Forge 5.5.09 Aug 20241.21.3, 1.21.2, 1.21.1, 1.21, 1.20.66.2 MB900.8k downloads09a32a3902c2…Choose file on publisher ↗
  • Kotlin for Forge 5.4.010 Jul 20241.21, 1.20.66.2 MB77.4k downloadse957180f97dd…Choose file on publisher ↗
  • Kotlin for Forge 5.3.016 Jun 20241.21, 1.20.66.2 MB28.4k downloads60f53ece5ccd…Choose file on publisher ↗
  • Kotlin for Forge 4.11.05 Jun 20241.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +2 more6.9 MB26.1M downloads1fd8acfd75a2…Choose file on publisher ↗
  • Kotlin for Forge 5.2.028 May 20241.20.66.1 MB3.0k downloads4481e3498da7…Get
  • Kotlin for Forge 4.10.026 Dec 20231.20.5, 1.20.4, 1.20.3, 1.20.2, 1.20.1 +3 more7.4 MB9.1M downloads5981310618eb…Choose file on publisher ↗
  • Kotlin for Forge 4.9.015 Dec 20231.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +2 more7.4 MB338.7k downloads24937a5ef4ea…Choose file on publisher ↗
  • Kotlin for Forge 4.8.05 Dec 20231.20.2, 1.20.1, 1.20, 1.19.4, 1.19.37.4 MB958.6k downloads171f4927be62…Choose file on publisher ↗
  • Kotlin for Forge 4.7.022 Nov 20231.20.2, 1.20.1, 1.20, 1.19.4, 1.19.37.4 MB478.9k downloads0662a42e5c60…Choose file on publisher ↗
  • Kotlin for Forge 4.6.214 Nov 20231.20.2, 1.20.1, 1.20, 1.19.4, 1.19.37.4 MB301.7k downloads3b27dd4ffeb1…Choose file on publisher ↗
  • Kotlin for Forge 4.5.01 Oct 20231.20.2, 1.20.1, 1.20, 1.19.4, 1.19.37.3 MB1.6M downloads42184b6d60c9…Choose file on publisher ↗
  • Kotlin for Forge 4.4.07 Jul 20231.20.2, 1.20.1, 1.20, 1.19.4, 1.19.37.2 MB2.1M downloads587b252c91c9…Choose file on publisher ↗

Frequently asked

Does Kotlin for Forge work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Kotlin for Forge 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 Kotlin for Forge support?

Everything the author has declared, from 1.14 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Kotlin for Forge 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 Kotlin for Forge?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install Kotlin for Forge?

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 Kotlin for Forge 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.

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.

Details from CurseForge, where the author last updated it on 10 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? .