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KubeJS

Mod

by LatvianModder

Edit recipes, add new custom items, script world events, all in JavaScript!

Type

Mod

CurseForge Downloads

162,925,816

CurseForge ID

238086

Modrinth Downloads

20,770,088

Modrinth ID

umyGl7zF

Last Updated

Sep 12, 2026

Description

KubeJS

What does this mod do?

This mod lets you create scripts in JavaScript language to manage your server, add new blocks and items, change recipes and tags, add custom handlers for quest mods, change worldgen and more!

How to use it?

Run the game with mod installed once. It should generate kubejs folder in your minecraft directory with example scripts. startup scripts only get run once when the game loads. Those are for registering items, setting up configs etc. Server/data scripts are loaded when you join a world, those are better for things like clearlag, displaying custom login messages and world/player related things in general.

Video tutorial for 1.19.2

Can I reload scripts?

Yes, use /reload. Note: Not everything is reloadable. Some things require you to restart game, some only world, some work on fly.

I don't know JavaScript / I need help with this mod!

There's examples and pre-made scripts on KubeJS Wiki.

I have a question / suggestion / bug report!

If wiki didn't have the answer for what you were looking for, you can ask questions, make feature suggestions and report bugs here: KubeJS Support

Compatibility

Mod Loaders

Fabric Forge Neoforge Quilt

Game Versions

1.18.2 1.19 1.19.2 1.20.1 1.20.4 1.21 1.21.1 26.1.2

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

LEGO Minecraft Set

LEGO Minecraft Set

Official sets that translate the building side of the game off-screen.

View on Amazon →

As an Amazon Associate I earn from qualifying purchases.

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Included in Modpacks (2,307)

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TNP Limitless 5 - LL5 TNP Limitless 5 - LL5 Sky Bees 2 Sky Bees 2 Create 2 Mekanism: Sky Edition 2 Create 2 Mekanism: Sky Edition 2 TNP Limitless 7 - LL7 TNP Limitless 7 - LL7 All the Mods: Volcano Block ATMVB All the Mods: Volcano Block ATMVB Life in the village 4 Life in the village 4 Rusty Sink 2 Rusty Sink 2 Alaskan Wilderness Reimagined - ForgeLabs Recreation [AWR] Alaskan Wilderness Reimagined - ForgeLabs Recreation [AWR] Create on a Potato PC: Ultimate Create on a Potato PC: Ultimate BTH - Beyond The Horizon BTH - Beyond The Horizon Enigmatica 9: Expert - E9E Enigmatica 9: Expert - E9E The Pioneers The Pioneers TNP Limitless 3 - LL3 TNP Limitless 3 - LL3 All The Mods - Gravitas² All The Mods - Gravitas² ZS Pack (Tensura) ZS Pack (Tensura) Strictly Medieval 3 [FORGE] Strictly Medieval 3 [FORGE] Enigmatica 8 - E8 - 1.18 Enigmatica 8 - E8 - 1.18 Cuboid Outpost Cuboid Outpost Project Architect Project Architect All the Magic - Arcana All the Magic - Arcana EMC: To The Sky EMC: To The Sky Encrypted_ Encrypted_ ChaosZProject - A Modern Zombie Apocalypse [VR for WIP v.3.0.0] ChaosZProject - A Modern Zombie Apocalypse [VR for WIP v.3.0.0] Create: Mekanized Create: Mekanized FTB Presents: Direwolf20 - Season 14 FTB Presents: Direwolf20 - Season 14 Create Stellar Create Stellar Astropolis Astropolis Not Too Complicated 2 Not Too Complicated 2 Cobblemon Eternal: The Minecraft Pokémon Experience Cobblemon Eternal: The Minecraft Pokémon Experience Cuboid Outpost (Luxury Edition) Cuboid Outpost (Luxury Edition) Mayview (with Cobblemon!) Mayview (with Cobblemon!) Project Sacrifice Project Sacrifice The Winter Frontier The Winter Frontier Avalon Forge Avalon Forge Reminiscence Reminiscence BETTER FANTASY - Overture BETTER FANTASY - Overture Confluence: Journey's Start (Terraria ModPack) Confluence: Journey's Start (Terraria ModPack) Seaopolis Submerged 2 Seaopolis Submerged 2 Auto-TerraFirmaCraft (TFC + Create) Auto-TerraFirmaCraft (TFC + Create) Farming Crossing 4 Farming Crossing 4 Enigmatica 9 - E9 - 1.19.2 Enigmatica 9 - E9 - 1.19.2 Ragnamod VII Ragnamod VII FTB Skies 2 Aero FTB Skies 2 Aero Just Not Enough Mods 2 (JNEM2) Just Not Enough Mods 2 (JNEM2) Island Adventure - Complete Overhaul | Now with Quests! Island Adventure - Complete Overhaul | Now with Quests! Farming Crossing 5: Made to Order! Farming Crossing 5: Made to Order! Enigmatica 10 - E10 Enigmatica 10 - E10 Horrorland 2 - Psychological and Classic Horror Modpack (with Horror Quests) Horrorland 2 - Psychological and Classic Horror Modpack (with Horror Quests) Seaopolis 2 Seaopolis 2 Skyopolis: Evolved Skyopolis: Evolved Euphoric Curiosity Euphoric Curiosity Christmas Holidays - Ideal For Festivities | Christmas Quests Update! Christmas Holidays - Ideal For Festivities | Christmas Quests Update! Concatenation Concatenation GregTech Community Pack Modern GregTech Community Pack Modern Cobblemon Realms Cobblemon Realms Ice and Fire Magic Ice and Fire Magic Dragoncraft Dragoncraft Chosen's Create: Integrated Chosen's Create: Integrated Chroma Sky 2 Chroma Sky 2 Stoneopolis Stoneopolis Verdant Idea Verdant Idea Caveopolis (Modpack) Caveopolis (Modpack) Solo Leveling - Shadows Solo Leveling - Shadows Sky Alchemy Sky Alchemy Society: Sunlit Cobblemon Society: Sunlit Cobblemon

External Resources

CurseForge Modrinth Source Code Wiki Issues