rga: ripgrep, but also search in PDFs, E-Books, Office documents, etc.
A fully featured full text search engine written in PHP
Catalog your devices to search, analyze, and backup your files.
An open source search engine with RESTFul API and crawlers
Tagging system for local files
Data migration/conversion library based on STX and XSLT transformation
Portable source code librarian
extract unique file sets from sets with duplicates
DuMP3 is a duplicate and similar file finder.