Social media metadata testing
In order to get nicer previews on social media, websites can include special metada tags for title, description and banner image. There are online debuggers for these (e.g. https://cards-dev.twitter.com/validator), but it's a bit annoying (and invasive from a privacy PoV) to have to log in to Twitter just to debug metadata.
What I'm imagining is a native app where you put in a URL and it will render approximate versions of the OpenGraph/Twitter cards, to preview if all the metadata is being recognized correctly.
Edited by Tobias Bernard