Library for extracting plain text from documents(files) for further processing (indexing and searching)
Tool (wrapper) for compression and handling multiple type of archives (Zip, GZip, RAR, 7z).
Free Ruby Open Search Engine(v3) - converts any documents (pdf, doc/x,...) to text and makes full-text search on them
Google Chrome Extension for improved productivity for surfing the Web. Making popup window with content when mouse over the link.
Command-line tool that displays in a convenient form a list of descriptions of each gem in the Gemfile