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

Liferea, a simple and free Linux desktop news aggregator with support for TheOldReader and TinyTinyRSS.

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.

Feedbin is an open source feed reader.

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

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