Once the behavior pack (with manifest.json defining UUIDs, version, and dependencies) and resource pack (with its own manifest.json) are prepared, they are placed into a single folder. That folder is zipped, then renamed from .zip to .mcaddon. When double-clicked, Minecraft Bedrock will import both packs simultaneously. This is the only "portable" aspect—an .mcaddon can be shared and installed on any Bedrock platform (Windows, iOS, Android, Xbox) without additional tools.
Once you have successfully created or acquired a .mcaddon file, installing it on Bedrock is seamless:
Before attempting a conversion, it is crucial to understand why this is difficult: how to convert jar to mcaddon portable
The takeaway: You cannot simply "convert" a complex Java mod (like Create or Optifine) to Bedrock. The code is fundamentally different. However, for simpler mods (like new items, blocks, or entities), conversion is possible.
| JAR Mod Feature | Convertible to MCADDON? | Difficulty | | :--- | :--- | :--- | | New Item (Sword, Pickaxe) | Yes | Easy | | New Block (Simple, no logic) | Yes | Medium | | New Food Item | Yes | Easy | | New Mob Texture (Reskin) | Yes | Easy | | New Mob Behavior (AI) | Partial (Must rewrite in JSON) | Hard | | New Biome / World Gen | No | Impossible | | New GUI / Menu | No | Impossible | | Custom Crafting Table Logic | Partial (Use crafting table JSON) | Medium | | Shaders / Rendering Engine | No | Impossible | Once the behavior pack (with manifest
Bedrock defines most new content through JSON files, not code. For example:
If the Java mod’s behavior cannot be expressed via JSON components (e.g., a custom keybinding that opens a special inventory), the porter must write a Script API (JavaScript) module. The script can listen for events (e.g., beforeItemUse), manipulate components dynamically, and even create custom UI via XML or HTML (if using the @minecraft/server-ui module). However, the Script API is far less powerful than Java reflection; for example, you cannot render custom 3D models dynamically like in Java. Before attempting a conversion, it is crucial to
Example: A Java mod that makes a sword set entities on fire for 5 seconds.