RSS Guard is a free and open source feed reader for Linux, Windows and MacOS. It is Qt based and released under open source GNU General Public License v3.0. It is lightweight feed reader. It supports RSS, RDF, ATOM and JSON feed formats. It also comes with build-in gmail plugin to send and receive mails, file downloader to download up to 6 files simultaneously, AdBlocker and command-line support. It comes with two editions with and without WebEngine. WebEngine based version comes with embedded Chromium browser and another one uses text based format to display the content.