Just tried the docker based on your email.
Nice project, nice big gui, simple to use.
The selector playground is really nice.

An idea to make it distinguish more from similar tools is by splitting up 'webscraping' into 👍

• detect webpage change (hasslefree, just enter url and be done, hide selector form-fields etc)
• webscraping (show selector form-fields etc)

The usecase is: many people who are not into css or scraping, just want to know when a webpage was updated (a product listing etc), so the RSS could entry could just mention 'page was updated'.
Not sure how to detect changes, perhaps comparing hash of the destination URL contents, to the last known one.

Anyways, good luck with this wonderful project!

cheers