integrated web browser with adjustable behavior + external browser support,.open-source development model based on GNU GPL license, version 3,.ability to hide list of feeds/categories,.fully skinnable user interface + ability to create your own skins,.KFeanza-based default icon theme + ability to create your own icon themes,.hideable main menu, toolbars and list headers,.ability to check for updates on all platforms + self-updating on Windows,.fully adjustable toolbars (changeable buttons and style),.feed authentication (Digest-MD5, BASIC, NTLM-2),.

printing of messages and any web pages,.ability to backup/restore database or settings,.full support of podcasts (both RSS & ATOM),.ability to discover existing feeds on websites,.“portable” mode support with clever auto-detection,.is able to specify target database by its name (MySQL backend),.enhanced feed auto-updating with separate time intervals,.

ability to cleanup internal message database with various options,.Google-based auto-completion for internal web browser location bar,.feed metadata fetching including icons,.

message filter with regular expressions,.

downloader with own tab and support for up to 6 parallel downloads,.

import/export of feeds to/from OPML 2.0,.

support for online feed synchronization via plugins,.

Instal RSS Guard 4.5.1 free