

What does this mod do?
BuddycardsJS is a KubeJS addon that adds support for creating Buddycards-style content through JSON and textures.
It is built to work alongside KubeJS and Buddycards, making it easier to define custom content without hardcoding every item manually.
With BuddycardsJS, you can create:
- custom sets
- custom cards
- custom packs
- binders
- booster boxes
- medals
- loot injections
This makes it useful for modpack developers, addon makers, and anyone who wants to expand Buddycards with data-driven content.
How to use it?
BuddycardsJS reads content files from your kubejs folder and generates the assets and data needed for your custom content to work in-game.
You create JSON files for things like:
- sets
- cards
- packs
- binders
- booster boxes
- medals
- loot injections
Then you add the required textures, launch the game, and BuddycardsJS handles the generated files from there.
In short:
- define content in JSON
- add textures
- let BuddycardsJS generate the rest
Installation Guide
BuddycardsJS requires the following mods:
Make sure all required mods are installed on the correct Minecraft and Forge version.
After installation, place your BuddycardsJS content files in your kubejs folder and launch the game.
Issue Tracker
If you find a bug or want to report a problem, please use the GitHub issue tracker:
Discord Wiki
For help, updates, and community discussion, join the Discord:
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- 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.
- Ships as buddycardsjs-0.3.0.jar — drop this file into the mods folder
- Download size: 68 KB
- Download link checked 20 Aug 2026 — working
These come from our own check of the pack file, not from the source page.