ModsJava
JsMacros
Macro and Scripting mod supporting many events and triggers. Free Minecraft Java mod for 1.21, 1.21.1.
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.
This mod allows for the development of scripts to interact with the chat, and other parts of the world, using JavaScript.
Extensions
Extensions allow you to code in languages other than the default language JavaScript, and some even have performance benefits.
More about extensions
Verified by MCModsHub
- Ships as jsmacros-1.21-1.9.3-beta-76ef9d5-forge.jar — drop this file into the mods folder
- Download size: 26.0 MB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.