OpenJavascript
Java mod listed for Minecraft 1.18–26.x. Downloads from the MC Java Mods app on Android.
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
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!
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.18, 1.18.1, 1.18.2
- 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 Modrinth — 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.
- Ships as openjs-1.5.0.jar — drop this file into the mods folder
- Download size: 2.4 MB
- Download link checked 10 Oct 2026 — working
These come from our own check of the pack file, not from the source page.