You cannot convert complex Java mods (like "Create" or "JEI") directly to Bedrock. Those require rewriting code from scratch. However, you can convert:
A simple converter would be like trying to turn a gasoline car engine into an electric motor by just renaming the files. Not possible. how to convert jar to mcaddon patched
You run a Java server (PaperMC + Fabric/Forge) with your .jar mods installed. Then, you run (a proxy) and Floodgate on the same machine. Bedrock players connect to the Geyser port, which translates all Java packets into Bedrock packets. You cannot convert complex Java mods (like "Create"
"format_version": 2, "header": "name": "Converted Java Mod - Resources", "description": "Patched conversion from JAR", "uuid": "generate-a-random-uuid-here", "version": [1, 0, 0], "min_engine_version": [1, 19, 0] , "modules": [ Not possible
For years, the standard advice was that .jar mods simply would not work on Bedrock. The main hurdles included: