An application to allow a user to browse through a collection of objects.
Browsers can be in several different varieties.
An example of a web browser is Mozilla.
A Tcl-based web browser is BrowseX.
Here on the Wiki:
2009-03-14 TclTkD : It seems a multi-purpose Browser,assisted by optcl. Not only for text files,it can surf web pages,photo images and movies. Try it!(but may be buggy) at: http://members.jcom.home.ne.jp/tcltk-d/ (based on standard Tcl/Tk(8.16),wrapped by Tkwrap of WinTclTk).