You can try this online

All transformations occur directly in your browser (your notes remain private and are not transmitted to any server)

You can also load a note automatically by passing a file URL via the file query parameter. This is useful for viewing notes synced to a private cloud, NAS, or other web-accessible storage. Note that for cross-origin requests, the hosting server must allow access.

Sister app: This app is powered by the supernote-typescript library, which is based on Tiemen/supernote and the original supernote-tool.

There is another app to try: supernote-tldraw that allows to manipulate notes in a canvas