Menu

mod

ClassJSMinecraft mod

A KubeJS addon to create Java classes

client and server
Latest version
0.1-alpha.6
Minecraft
no version declared
Java
follows the game
Loaders
none declared
Licence
MIT
Downloads
1.0k
Updated
10 mo ago
Available on
Modrinth
Space NodeOur hosting

Host ClassJS servers

One click and ClassJS is installed with the right loader, on hardware built for it.

  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Download

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

Most recently published release

0.1-alpha.6alpha27 Dec 2025

classjs-1.20.1-0.1-alpha.6.jar · 0.2 MB · for 1.20.1 · Forge

Download this release
e862646e8c54…
Older versions5
  • 0.1-alpha.520 Oct 20251.20.10.2 MB108 downloads97e362fa7877…Get
  • 0.1-alpha.417 Oct 20251.20.10.2 MB19 downloads5db9df723e69…Get
  • 0.1-alpha.316 Oct 20251.20.10.2 MB15 downloads3bf81ff07a3a…Get
  • 0.1-alpha.214 Oct 20251.20.10.2 MB25 downloads6548e91feb06…Get
  • 0.1-alpha.114 Oct 20251.20.10.2 MB19 downloads229a356a4671…Get

Frequently asked

Do I need to install ClassJS on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

What licence is ClassJS under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install ClassJS?

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 ClassJS safely?

Start with the author's page on Modrinth, 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.

Which Minecraft versions does ClassJS work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old mod with no declared version as untested on modern Minecraft.

Details from Modrinth, where the author last updated it on 27 Dec 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 40 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .