Convert Jar To Mcaddon Work ((better)) May 2026

The Ultimate Guide: How to Convert JAR to MCADDON (And Make It Work)

Last Updated: October 2024 Target Platforms: Minecraft: Java Edition → Minecraft: Bedrock Edition (PE, Windows 10/11, Console, iOS, Android)

If you have been searching for the term "convert jar to mcaddon work," you have likely hit a frustrating wall. You have a classic .jar file (a mod for Minecraft Java Edition) that you love, and you want to play it on your phone, Xbox, or Windows 10/11 version of Minecraft Bedrock.

Here is the hard truth you need to accept before reading further: You cannot directly convert a JAR file into an MCADDON file with a one-click tool.

However, that does not mean it is impossible to get the features of a Java mod into Bedrock. This guide will explain exactly why JAR and MCADDON are different species, the technical workarounds to "convert" the logic, and how to make the final .mcaddon file actually work without crashing. convert jar to mcaddon work

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4. Recreate Blocks & Items (JSON)

Bedrock uses JSON component‑based definitions.

• Block example (BP/blocks/my_block.json):

  
    "format_version": "1.20.0",
    "minecraft:block": 
      "description":  "identifier": "myaddon:my_block" ,
      "components": 
        "minecraft:destructible_by_mining":  "value": 2 ,
        "minecraft:light_emission": 5,
        "minecraft:material_instances":  "*":  "texture": "my_block"
  

• Item example (BP/items/my_item.json):

  
    "format_version": "1.20.0",
    "minecraft:item": 
      "description":  "identifier": "myaddon:my_item" ,
      "components":  "minecraft:hand_equipped": true
  

5. Recreate Entities (If the Mod Adds New Mobs)

• Java uses EntityType and AI goals. Bedrock uses entity behavior files and components.
• In Blockbench, model the entity → export as Bedrock .geo.json.
• Create BP/entities/my_entity.json (behavior) and RP/entity/my_entity.entity.json (client).
• Port AI goals as best you can using available components like minecraft:behavior.melee_attack, minecraft:navigation.walk, etc.

2. What an MCADDON Really Is

Create a folder with two subfolders:

• behavior_pack/ – Contains manifest.json, entities/, blocks/, scripts/ (JavaScript/TS)
• resource_pack/ – Contains manifest.json, textures/, models/, sounds/

Zip them together and rename .zip → .mcaddon. When double‑clicked, Minecraft Bedrock imports both packs at once. The Ultimate Guide: How to Convert JAR to

Step 5 – Handle World Generation

Java mods often add custom biomes, ores, and structures. Bedrock uses a different system:

• Ores: Use minecraft:ore_feature in behavior pack JSON.
• Structures: Use structure_set and structure JSONs (similar to Java 1.18+).
• Biomes: Bedrock’s biome JSONs are very different – often the hardest part.

Alternative: Use Structure Placer add‑ons or pre‑generate structures and import them as *.mcstructure files.

Step 1: Extract the Assets from the JAR

You need the raw textures (.png) and localization (text names). Block example ( BP/blocks/my_block

1. Rename your mod.jar file to mod.zip.
2. Extract the ZIP folder.
3. Look for the assets folder. Inside, you will find:
   • textures/blocks -> Main resource block images.
   • textures/items -> Inventory images.
   • lang/en_us.json -> Names of the items/blocks.
   • models/block -> Java block models (you cannot use these directly, but they show you the 3D shape).

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