Radio UserLand is a software package from UserLand Software, first released in 2000, which includes not only a client-side blogging tool but also an RSS aggregator, an outliner and a scripting language.

Radio users also have the option of uploading their weblog content to a server at another Web hosting service.

[3] Radio Userland was first presented in a demo under the name "Pike" in March 2000.

[7] With the exception of minor fixes, the software is no longer under active development but continues to be sold and supported by UserLand.

[8] Radio was the first commercially available program to enable the "RSS enclosure" method of delivering audio or video files,[9] the basis of what came to be known as podcasting several years after the feature was introduced.