Did you try this :

import * as JSONInput from "react-json-editor-ajrm";

or

import { JSONInput } from "react-json-editor-ajrm";

If it doesn't work, just tell me and we'll look more into this together :)

Edit for the require :

const JSONInput = require('react-json-editor-ajrm').default

You can load an external editor in react or any external JS file having Plain Javascript using React.Lazy() .

const MarkdownPreview = lazy(() => import('./MarkdownPreview.js'));

I had a similar issue while trying to Load ace JS editor on to my React app . It got resolved with this .