
ModsJava
OpenJavascript
Create custom menus, commands, plugins, systems, basically anything with scripts in Javascript! With multithreading and Folia support! Everything is fully…
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.


Ever wanted to make features for your Minecraft server, but writing full Java plugins is hard and painful?
OpenJS lets you build powerful server logic using JavaScript. No compiling. No restarts. Just code, save, and run.
Why OpenJS?
- Folia support
- Create custom Menus with scripts
- Create custom commands with scripts
- Reload scripts instantly without restarting the Server
- Simplified custom APIs to make scripting easier
- Easy to read Documentation
- Plugin support: ProtocolLib & PlaceholderApi
- VS-Code Autocomplete Extension!
Hot-reloading a script while server runs.
Even AI can generate working scripts with OpenJS! Click here for a tutorial
Get Started
Full Documentation
Everything and more is covered, from the basics to advanced patterns.
Check out the docs.
Need help?
Join the Discord for support, tips, and community-made scripts!
Verified by MCModsHub
- Ships as openjs-1.5.0.jar — drop this file into the mods folder
- Download size: 2.4 MB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.
