It looks like it's open source and you can run it locally if you don't trust a third party website (and you probably shouldn't, depending on the data you paste

It looks like it's open source and you can run it locally if you don't trust a third party website (and you probably shouldn't, depending on the data you paste in there): https://github.com/apihero-run/jsonhero-web https://github.com/apihero-run/jsonhero-web