If you are the original developer, there is source maps support at least in Firefox so you can step through the source code like with any normal debugger.
If you are not the original developer, most likely source maps are not available to you. Then, wasm can be studied with already existing reverse engineering tools, like IDA Pro, binary ninja or radare2/cutter. Last one is even FLOSS.
If you are not the original developer, most likely source maps are not available to you. Then, wasm can be studied with already existing reverse engineering tools, like IDA Pro, binary ninja or radare2/cutter. Last one is even FLOSS.