RSSOwlnix is a free open source feed reader for Windows, Mac and Linux systems. RSSOwlnix is a fork of RSSOwl a powerful RSS feed application to organize, search and read RSS, RDF & Atom news feeds. According to RSSOwl, it is unmaintained and has several known vulnerabilities. The main features of RSSOwlnix other than RSSOwl are saved searches, google reader sync, notifications, filters, fast fulltext search and a easy to use UI. interface.