| Feature | .jar (Java Edition) | .mcaddon (Bedrock Edition) | | :--- | :--- | :--- | | | Java | C++ | | What it contains | Compiled Java code, classes, assets | .mcpack (behavior pack) + .mcworld (resource pack) | | How it runs | Mod loaders like Fabric or Forge | Native file format recognized by Bedrock | | Core logic | Full code changes (new mechanics) | JSON files + scripting (limited compared to Java) |

A: As with any file conversion or tool usage, there are risks. Always prepare backups and use trusted sources.

: If you've decompiled and edited, recompile your mod into a JAR if necessary, then convert or directly use in your MCAddon.