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mod

PortalJSMinecraft mod for 1.21.1

Ability to create custom portals with KubeJS

newest supported 1.21.1Mc AddonsKubejs
Latest version
portaljs-1.21.1-1.2.0.jar
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
not stated
Downloads
53.8k
Updated
6 d ago
Available on
CurseForge
Space NodePartner

Host PortalJS servers

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

  • 1.21.1
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

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

portaljs-1.21.1-1.2.0.jarrelease1 Aug 2026

portaljs-1.21.1-1.2.0.jar · 0.2 MB · for 1.21.1

Download latest
1ec4bd3c04bb…
Older versions5
  • portaljs-1.21.1-1.1.05 Mar 20251.21.10.2 MB2.2k downloadsc6cc1a997724…Get
  • portaljs-1.21.1-1.0.327 Feb 20251.21.10.2 MB57 downloads2417387fb67a…Get
  • [DO NOT USE] portaljs-1.21.1-1.0.227 Feb 20251.21.10.2 MB17 downloadsf4e1e3574ed5…Get
  • [DO NOT USE] portaljs-1.21.1-1.0.125 Feb 20251.21.10.2 MB2.3k downloadsd475a491b125…Get
  • [DO NOT USE] portaljs-1.21.1-1.0.0.jar24 Feb 20251.21.10.2 MB12 downloads4a1b91b9170f…Get

Frequently asked

Does PortalJS work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version PortalJS 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 loader does PortalJS need?

NeoForge. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for PortalJS?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

How do I install PortalJS?

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 PortalJS safely?

From the author's own page on CurseForge, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

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Last checked 2 d 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? .