ModsJava
Graal
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Graal
is a customized version of GraalJS, a high performance JavaScript implementation. It is ECMAScript-compliant, provides interoperability with Java and other Graal languages.
On top of regular GraalJS features, Graal made these improvements:
- MemberRemapper support, allowing developers to customize the JavaScript side name of a Java member, like Method and Field
- Trimmed bundled libraries, making the total mod size ~50% smaller than regular GraalJS
GraalJS Documentation: https://www.graalvm.org/reference-manual/js/
Attention
- This is NOT GraalJS or GraalVM. If you encounter issues that are not related to JavaScript itself, send issues to GraalMC GitHub repo before contacting GraalJS or GraalVM
- (Fixed in 25.0.2.0) If you are running the game with GraalVM, the game will crash early
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21.11, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as graalmc-neoforge-25.1.3.6.jar — drop this file into the mods folder
- Download size: 19.3 MB
- Download link checked 3 Oct 2026 — working
These come from our own check of the pack file, not from the source page.