RSSOwl is a powerful open-source application to organize, search, and read feeds. It extremely has powerful search features and offers synchronization with Google reader and more.
RSS Owl is a powerful application to organize, search and read your RSS, RDF & Atom news feeds in a comfortable way. Highlights are saved searches, google reader sync, notifications, filters, fast fulltext search and a flexible, clean user interface.
RSSOwl runs cross-platform on Windows, Linux, and macOS and can also be installed into Eclipse.
Windows, Linux, Eclipse