RSSOwl is a news aggregator for RSS and Atom News feeds.

FeedDemon is a free RSS feed reader for Windows.

Feedbro is a browser extension for Google Chrome that adds local feed reading capabilities to the web browser.

QuiteRSS is a cross-platform RSS/Atom news feed reader written using Qt.

Feeder is a web based RSS feed reader.

Kontact is a personal information manager and groupware software suite developed by KDE. It supports calendars, contacts, notes, to-do lists, news, and email.