CurseForge · Minecraft mod
Graal
High performance JavaScript runtime, tweaked for Minecraft usage
Quick answer
Which Graal release matches 26.2?
Graal 25.1.3.7 for Neoforge targets 1.21.1, 1.21.11, 26.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Graal required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Graal 25.1.3.7 for Neoforge need?
25.1.3.7 for Neoforge on 26.2. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Graal without breaking your instance.
Built for Graal 25.1.3.7 for Neoforge on 26.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 25.1.3.7 for Neoforge. It targets 1.21.1, 1.21.11, 26.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside 25.1.3.7 for Neoforge. It opens that exact file at the source.
About this project
What does Graal add?
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
Project description from CurseForge.
Pick your setup
Graal by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
3 loader builds26.1.1
3 loader builds26.1
3 loader builds1.21.11
3 loader builds1.21.1
3 loader builds1.20.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Graal versions and loaders
25.1.3.7 for Neoforge
graalmc-neoforge-25.1.3.7.jar
29 Aug 2026
25.1.3.6 for Fabric
graalmc-fabric-25.1.3.6.jar
18 Jul 2026
25.1.3.6 for Neoforge
graalmc-neoforge-25.1.3.6.jar
18 Jul 2026
Looking for an older file? The official CurseForge project page is in Resources.