Author here.<p>I built this tool to quickly play around with JSON data and jq queries outside the command line.<p>It was built by compiling jq from C to WebAssembly, and by basically calling jq's main() function from JavaScript!<p>The main advantage of this over having a server run jq queries and return results to the browser is speed and security. But there's also convenience: jqkungfu is front-end only, and is hosted as a bunch of static files on cloud storage!