It'll help me for my Cleanup activities to fetch and retrieve via the gerrit web interface the repositories by their state (active, read only and hidden). However I see there's no way to do that via the web interface. It'd be nice to be able to search for repository status via web interface. Thanks.
Meanwhile you can ask the REST API to give you all the projects with description and state with:
pp=0 disables pretty printing.
Note that you have to strip the first line:
I don't think you would be able to access the HIDDEN repositories though, that might require a specific user right.
PolyGerrit in 2.16 does state:open by default see https://github.com/GerritCodeReview/gerrit/blob/master/polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface.js#L1574