How do I install ModifyJS?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does ModifyJS work with?

The listing gives Minecraft 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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ModifyJS

by AnNingUI1 · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

TODE LIST

[√] Currently only the support for item renderByItem has been added
[√] Add an Item type that can be used to create MEK Module Item
...(still being improved)

Attention

This mod overrides the createObject method of BlockItemBuilder, which may cause issues during block registration.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
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 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.

Verified by MCModsHub

Ships as modifyjs-1.1.0.3-neoforge.jar — drop this file into the mods folder
Download size: 117 KB
Download link checked 31 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21