Desktop tool to quickly explore disassembled Kotlin code
Kotlin Explorer is a desktop tool to quickly and easily disassemble Kotlin code. After launching Kotlin Explorer, type valid Kotlin code in the left pane, then click File > Decompile or use Cmd-Shift-D on macOS, Ctrl-Shift-D on Linux and Windows. The middle pane will show the Android DEX bytecode, and the right panel the native assembly resulting from ahead of time compilation (AOT).
Bytecode to source converting Java & Kotlin code into JavaScript, C++
JTransc (Java Trans Compiler) is an AOT (ahead-of-time compiler) that compiles .class and .jar files into a target programming language / executable bundling all the required dependencies in a single file or folder, without requiring a jitter or an external runtime. There are a lot of technologies in order to convert languages into other ones. For example, converting Java into JavaScript. Or KotlinJS Kotlin backend that already targets JavaScript.