
Edit recipes, add new custom items, script world events, all in JavaScript.
No points lost.
71 of the 71 points that apply = 100 out of 100.
KubeJS is a JavaScript scripting mod for customizing Minecraft modpacks and servers, letting creators change game behavior and content without building a separate mod for every change. Scripts can manage server events and player interactions, add commands and messages, and respond to actions such as breaking or placing blocks, crafting items, picking things up, and interacting with entities. Creators can add blocks, items, fluids, mob effects, and custom tool or armor tiers, as well as modify existing blocks, items, and creative tabs. For example, scripts can replace a broken stone block with cobblestone, prevent chest right-clicks, or make a bucket milk a goat. KubeJS also supports changing recipes and tags, customizing world generation, and integrating with quest mods such as FTB Quests; datapack-based recipes work by default, while some more complex mod recipes need an addon. Scripts are organized into startup, server, and client folders for registration and setup, world and player behavior, and client-side changes, respectively, with reload options varying by script type and feature.
Written from Modrinth and the GitHub README . How we write it
Changes the game's code in 12 areas, as a library other mods build on: Game coreChanges 16 game code files in this area: the main loop, lighting and other code the whole game uses., Inventory and itemsChanges 11 game code files in this area: items, chests and other containers, crafting and enchanting., Server and world logicChanges 10 game code files in this area: the world, commands, scoreboards, saved data and game rules., Mobs and their behaviorChanges 7 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., User interfaceChanges 7 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., Game data and resourcesChanges 5 game code files in this area: recipes, tags, advancements, language files and other game data., PlayerChanges 5 game code files in this area: your character: movement, abilities, hunger and controls., Blocks and fluidsChanges 4 game code files in this area: how blocks, fluids and redstone work., Rendering and graphicsChanges 2 game code files in this area: drawing mobs, items, particles and textures on screen., Game optionsChanges 2 game code files in this area: settings, key bindings and the option screens., Networking and multiplayerChanges 1 game code file in this area: connections, the server list and what is sent between your game and a server. and World renderingChanges 1 game code file in this area: drawing the terrain, sky, clouds and weather..
A library packed inside it changes 1 more game code file:
Better Advanced Tooltips.
Keeps all of vanilla Minecraft's textures, models and sounds.
No harmful code found
We checked its files and read their code, without running it.
Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.
We found nothing it sends about you
We read its code without running it: it contacts 1 web address while you play.
Like any connection, each address it contacts sees your IP address.
The author declares on Modrinth that it always sends crash reports or usage data.
Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
No sign that AI was used to make it
We looked for AI tools in its texts, files, images and code history and found none.
No sign of AI in the game
We found no AI service, AI library or AI model file in its code.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
Point at or tap a version to see its loaders.
These projects do not work together with KubeJS: their authors or KubeJS' author say so. If you install both, the game can crash or some features can stop working. Some of them do the same job as KubeJS, so you only need one.
| Oct 2024 | 726 |
|---|---|
| Nov 2024 | 696 |
| Dec 2024 | 777 |
| Jan 2025 | 817 |
| Feb 2025 | 850 |
| Mar 2025 | 901 |
| Apr 2025 | 976 |
| May 2025 | 1,067 |
| Jun 2025 | 1,005 |
| Jul 2025 | 1,039 |
| Aug 2025 | 1,088 |
| Sep 2025 | 1,035 |
| Oct 2025 | 1,100 |
| Nov 2025 | 1,163 |
| Dec 2025 | 1,243 |
| Jan 2026 | 1,274 |
| Feb 2026 | 1,214 |
| Mar 2026 | 1,295 |
| Apr 2026 | 1,470 |
| May 2026 | 1,665 |
| Jun 2026 | 1,661 |
| Jul 2026 | 1,744 |
| Aug 2026 | 1,689 |
| Sep 2026 | 1,573 |
More modpacks put it in their new versions than a year ago: 1,634 a month now, 1,035 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..
19,348 modpacks include KubeJS in at least one of their versions. Here are the 30 most downloaded.
Mods that modpacks often add together with KubeJS. Share: how many of the modpacks with KubeJS also have that mod.
The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.
In the last 2 years, 2 releases needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.