rga: ripgrep, but also search in PDFs, E-Books, Office documents, etc.
A fully featured full text search engine written in PHP
Load filenames to a local database for an easy search
Command-line toolset for extracting text from files
Catalog your devices to search, analyze, and backup your files.
Local search engine for your personal computer
Common Resource Grep
simple searching tool for big fileservers
An open source search engine with RESTFul API and crawlers
Tagging system for local files
The MARKet for Open Source
Data migration/conversion library based on STX and XSLT transformation
Portable source code librarian
extract unique file sets from sets with duplicates
Trovi is a text search tool for PDF files
DuMP3 is a duplicate and similar file finder.