Written with B4X using ElasticSearch and Tika. Free but not open source. :)
More info and download here: https://www.nmcollector.net/post/desktop-search-application-now-available
Forgive me if I missed this but I did try to find it in the forums. I would like to develop an application using jElasticSearch (https://www.b4x.com/android/forum/threads/server-jelasticsearch-search-and-text-analytics.73335/) but I cannot figure out how to provide login credentials to the...