Be careful with that: it very probably goes against all sorts of TOS and can get you in trouble

A court recently ruled [1] that LinkedIn had to allow scraping, but it has to be public data (i.e. you can't log into your Facebook account and then scrape all your friends' pages).

[1] https://www.eff.org/deeplinks/2019/09/victory-ruling-hiq-v-l...

It's not the scraping itself that I would be worried about, it's using this data to create what could be seen as a competitor (especially if you make it commercial). For a lot of these websites, traffic is essentially money: diverting users to another website using their own content would be very badly received

Thanks for the heads up.

I was more thinking about a local web-app that consumes the site and then outputs it in a nice mobile layout, without actually archiving or saving anything.