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KubeJS

Mod

by LatvianModder

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

Type

Mod

CurseForge Downloads

162,966,230

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 (2,310)

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Realistic Modpack - extreme survival Realistic Modpack - extreme survival Cute-Cozy-Worlds Cute-Cozy-Worlds Create pack Create pack Tensura Chronicles of Tempest Tensura Chronicles of Tempest Project Infinity - Infinite possibilities, one world Project Infinity - Infinite possibilities, one world Cobblemon Sky Adventure Cobblemon Sky Adventure One Piece Evolve One Piece Evolve Cook in Skyland Elegant Feast Cook in Skyland Elegant Feast CosmonautiCraft CosmonautiCraft Unique Block 1 - UB 1 Unique Block 1 - UB 1 LoafCraft's Anime Adventures! LoafCraft's Anime Adventures! Aelstar Aelstar Beyond Dungeonspace - Steampunk Survival, Create Automation & Horde Defense Beyond Dungeonspace - Steampunk Survival, Create Automation & Horde Defense Gentle Brew Gentle Brew Mutants & Abilities Mutants & Abilities RoundAbout JoJo RoundAbout JoJo ArkobiCraft ArkobiCraft Lolicraft Official Lolicraft Official ES CRAFT ES CRAFT The Stalker's Shadow The Stalker's Shadow Fearence of the Great Mighty Homelander Fearence of the Great Mighty Homelander SubCraft Rebirth SubCraft Rebirth Reclamation - Hardcore Edition Reclamation - Hardcore Edition Echoes of Volkrune - Rebirth of Order Echoes of Volkrune - Rebirth of Order Tensura Final Resolve Tensura Final Resolve Eclipse Eclipse Trial of the Void Trial of the Void Create & Destroy Create & Destroy Backtanked Backtanked Harder Than Copper Age Harder Than Copper Age Modern Beta Modern Beta Createrington Cogs & Steam Createrington Cogs & Steam Seven Deadly Sins Chronicles Seven Deadly Sins Chronicles Tensura Reincarnated Life In Another World Tensura Reincarnated Life In Another World Arcane Project Genesis Arcane Project Genesis Jetlagg Presents: The Altar Jetlagg Presents: The Altar Elemental Engineering Elemental Engineering Create: Guns and Artillery Create: Guns and Artillery Most Of The Mods Most Of The Mods TussleCraft - Forgotten Age TussleCraft - Forgotten Age TerraFirmaKingdoms Season 1 TerraFirmaKingdoms Season 1 Modern Apocalypse: Zombie Edition Modern Apocalypse: Zombie Edition Minecolonies - Order and Chaos Minecolonies - Order and Chaos MHG: Cities! MHG: Cities! Dragons and Magic Medival Dragons and Magic Medival Tensura Tainted Grace Tensura Tainted Grace Celerity X Celerity X Create&Greg Create&Greg BuildCraft Lite BuildCraft Lite Create:Mechanism and Innovation Create:Mechanism and Innovation TFC - Simply Fantastic (TFCSF) TFC - Simply Fantastic (TFCSF) Kameritverse ( Alien Evolution ) Kameritverse ( Alien Evolution ) Gear Spinned Gear Spinned Cobblemon FG - Brasil Cobblemon FG - Brasil Star Wars Fleet Assault Star Wars Fleet Assault Jelly&Co Jelly&Co Cobblemon: Ultra Modded Cobblemon: Ultra Modded Create Beyond Cosmos Create Beyond Cosmos Mekanism Memories Mekanism Memories MysticCraft Divivded Kingdoms MysticCraft Divivded Kingdoms Economycraft Economycraft Grand Odyssey Grand Odyssey OmniCraft Evolved OmniCraft Evolved KRILLKRAFT KRILLKRAFT Artemis: Project Artemis: Project Marvel-DC Zombies Marvel-DC Zombies StaTech Industry: GoG StaTech Industry: GoG The Everlasting Winter The Everlasting Winter Endil's Peaceful World Endil's Peaceful World Superheroes spiders and horror Superheroes spiders and horror SpHiNxX's Technical Overhaul SpHiNxX's Technical Overhaul Builders Delight 4 Builders Delight 4 Semi Realistic Space Exploration Modpack Semi Realistic Space Exploration Modpack Cursed Kings of Jujutsu (CKJJ) Cursed Kings of Jujutsu (CKJJ) Agritech Skies Agritech Skies Howiecraft Howiecraft Ocean Island Craft Ocean Island Craft Sky Tekkin 2 Sky Tekkin 2 One Piece: Grand Voyage One Piece: Grand Voyage FoxMagic FoxMagic Alien Revolution 10 Alien Revolution 10 Dracium Create Edition Dracium Create Edition Atelier Mythos Era Atelier Mythos Era SkyTech Evolution SkyTech Evolution Tensura Pandemonium Official Tensura Pandemonium Official InsaneCraft Reimagined InsaneCraft Reimagined Chime Time IX Chime Time IX Furtastic (a changed adventure) Furtastic (a changed adventure) RimMod The SkyRim CrossOver (KILLED) RimMod The SkyRim CrossOver (KILLED) Project: TFCreate Project: TFCreate All In One Extended by Wazon All In One Extended by Wazon On Ancient Ground On Ancient Ground Better Than Ocelots [A Modern Better Than Wolves Port!] Better Than Ocelots [A Modern Better Than Wolves Port!] Reign of Nether: Fortress Battle Reign of Nether: Fortress Battle Sleepymon [COBBLEMON] Sleepymon [COBBLEMON] PMX PMX ProsperityCraft ProsperityCraft ProjectS ProjectS Galaxy Sky Galaxy Sky Dimensional Cultivation Dimensional Cultivation

External Resources

CurseForge Modrinth Source Code Wiki Issues