Convert Jar To Mcaddon Work !!exclusive!! -

Converting a Java Edition mod ( ) to a Bedrock Edition addon (

) is not a simple file renaming process because the two versions of Minecraft are written in different programming languages (Java vs. C++) and use entirely different systems for entities, blocks, and items.

A true conversion requires "porting"—recreating the mod's features using Bedrock's JSON-based addon system. The Reality of "Conversion" Java mods ( contain compiled Java code and assets. Bedrock Addons ( are essentially renamed files containing manifest.json files, textures, and behavior/resource packs. Automated Tools

: There is no 100% automated converter that turns complex Java code into Bedrock behaviors. However, tools like the Stonebyte Toolkit

(formerly CodeNex) help automate parts of the workflow, such as file structuring and pack management. Manual Porting Workflow (Write-up)

If you are a developer looking to port a mod, here is the standard procedural approach: 1. Deconstruct the .jar File Convert the into a readable format to access its assets. : Change the file extension from and extract it. : Locate the folder (containing textures, models, and sounds) and the files (logic). 2. Adapt the Assets (Resource Pack) convert jar to mcaddon work

Minecraft Bedrock has specific requirements for textures and models. : Java uses

for models, but Bedrock uses a slightly different JSON format. You may need tools like Blockbench to import Java models and export them as Bedrock Geometry

: Ensure texture sizes are powers of two (e.g., 16x16, 64x64). 3. Recreate Logic (Behavior Pack)

This is the hardest part. You cannot "convert" the Java code directly.

: You must manually recreate the mod's logic using Bedrock's Behavior Packs Components animation_controllers to mimic the original mod's behavior. Consult Microsoft Learn's Add-on Documentation for the latest Bedrock API standards. 4. Package as .mcaddon Converting a Java Edition mod ( ) to

Once your Resource and Behavior packs are ready, you must package them for easy installation. Resource Pack Behavior Pack folders into a single folder. Compress that folder into a Rename the extension to

Double-clicking this file will automatically import it into Minecraft Bedrock. Summary Table Java Mod ( Bedrock Addon ( JSON / JavaScript Compiled Code + Assets Manifests + Resources + Behaviors Code-driven Data-driven / API scripts guide on using Blockbench to convert specific Java models to Bedrock format?

Why Convert? The Motivation

Cross-Play Freedom: Bedrock runs on Windows 10/11, iOS, Android, Xbox, Switch, and PlayStation. An MCADDON allows modded gameplay across all these devices.
Performance & Reach: Bedrock is optimized for lower-end hardware and mobile devices.
Marketplace Potential: Successful Bedrock add-ons can be sold on the official Minecraft Marketplace.

Step 2: Convert the Assets for Bedrock (The Hard Part)

Now you must rebuild the mod using Bedrock's format.

A. Convert Textures

Java uses 16x16 pixels (usually). Bedrock likes 16x16.
Open a .png texture in GIMP or Paint.NET.
Save it as a .png (keep transparency).
Structure: Place them in a folder called textures/blocks or textures/items inside your resource pack.

B. Convert Block Models

Java uses JSON models with elements arrays.
Bedrock uses a different JSON format for Block Geometry.
Tool to use: Snowstorm (online block model generator). Recreate the Java block shape manually using cubes.
Pro tip: Simple cubes (full blocks, slabs, stairs) are easy. Complex 3D models (like chairs or machines) are very difficult.

C. Convert Behavior (The Real "Conversion") This is where you mimic the Java code using Bedrock's BP/entities or BP/items JSON.

Java Example: A sword that sets fire to enemies. Bedrock Version: Create my_sword.item.json and add:


  "format_version": "1.20.0",
  "minecraft:item": 
    "components": 
      "minecraft:on_hit": 
        "fire": 
          "duration": 5

9. Pack Manifest & Icons

Create BP/manifest.json and RP/manifest.json:


  "format_version": 2,
  "header":  "name": "My Ported Addon", "version": [1,0,0], "uuid": "generate-unique-uuid" ,
  "modules": [  "type": "data", "uuid": "another-uuid", "version": [1,0,0]  ],
  "dependencies": [  "module_name": "@minecraft/server", "version": "1.8.0"  ]

Add pack_icon.png (128×128) to each pack.

Step-by-step conversion workflow

Step 5: Create `manifest.json`

In the root directory of your add-on folder, create a new file named manifest.json.
Edit it with a text editor to include basic add-on information:


  "format_version": 2,
  "header": 
    "name": "Your Mod Name",
    "description": "Your mod description",
    "version": [1, 0, 0],
    "author": "Your Name"
  ,
  "dependencies": 
    "behavior_packs": [
"uuid": "UUID_OF_BEHAVIOR_PACK",
        "version": [1, 0, 0]
],
    "resource_packs": [
"uuid": "UUID_OF_RESOURCE_PACK",
        "version": [1, 0, 0]
]

Replace Your Mod Name, Your mod description, and Your Name with your information. Generate or use existing UUIDs for your packs.

Part 4: Converting Entity JAR Mods (Animals, Mobs, Bosses)

Entity conversion is the holy grail. You cannot convert Java entity code (which uses LivingEntity classes and AI tasks). Instead, you must:

Extract the geometry/model: Use a tool like Blockbench to import the Java .java model (if available) or rebuild it from screenshots.
Write Bedrock Behavior: Create an entity behavior file (.json) using Minecraft's component system.
Rewrite AI: Java's findRandomTarget() becomes Bedrock's minecraft:behavior.random_stroll.

Example: Converting a Java "Dragon" AI task to Bedrock: Why Convert

You will spend 95% of your time rewriting the AI.

Issue 4: Scripts don't run (GameTest Framework)

Fix: Go to your Minecraft World Settings -> Experiments -> Enable "Beta APIs" and "GameTest Framework". Bedrock disables scripting by default for performance.