Windows users have access to a WYSIWYG HTML editing tool built upon Microsoft Internet Explorer (MSIE) WYSIWIG Edit Control. Radio users receive free hosting and 20 Mb of space, or any other host may be used via a standard File Transfer Protocol (FTP) account setup. The desktop server is useful for working offline, and upon reconnection to the permanent host all changes are automatically uploaded. Radio's feature set includes an outliner for HTML, XML and other editing and content management functions, a Weblog editor for static blog sites, a live outline editor for Userland-style dynamic live outline sites, an HTML directory editor, automatic conversion of content to RDF Site Summary (RSS) feeds for subscription and syndication, email notification, categories, multiple weblogs, several archiving options, RSS feed aggregation, Manila integration, referral list viewing and notification, creation/sharing of MP3 playlists and built-in threaded P2P chat.

The program also has a script interpreter and editor/debugger, a built-in object database, a native programming language, Radio Community Server (RCS) for individuals or organizations to host communities, and support for HTTP, FTP, Simple Mail Transfer Protocol (SMTP), Post Office Protocol (POP), Javascript, Extensible Markup Language Remote Procedure Calls (XML-RPC) and Simple Object Access Protocol (SOAP) 1.1. Radio Userland works with Windows 98/2000/NT/XP and Macintosh Classic or OS X. A free evaluation is available for download.